TY - CHAP A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimental investigations on torque scaling in turbulent Taylor-Couette-Flow Y1 - 2011 ER - TY - GEN A1 - Merbold, Sebastian A1 - Fischer, Steffen A1 - Egbers, Christoph T1 - Torque scaling in Taylor-Couette-Flow - An experimental investigation Y1 - 2011 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Fischer, Steffen A1 - Egbers, Christoph T1 - Turbulent Couette-Taylor flow - An experimental investigation of the angular momentum flux Y1 - 2011 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimental Investigation of torque scaling in turbulent Taylor-Couette flow Y1 - 2011 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Drehmomentuntersuchungen im differentiell rotierenden Taylor-Couette System Y1 - 2011 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Analysis of differentially rotating turbulent Taylor-Couette-flow using Laser Doppler-Anemometry and comparison with torque measurements T2 - 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 09-12 July, Proceedings, Calouste Gulbenkian Foundation, Lisbon, Portugal Y1 - 2012 UR - http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2012/upload/168_paper_spkupl.pdf ER - TY - CHAP A1 - Merbold, Sebastian A1 - Brauckmann, Hannes A1 - Egbers, Christoph T1 - Optimal angular momentum flux of wide gap Taylor-Couette flow T2 - Book of abstracts, 9th European Fluid Mechanics Conference (EFMC), 9-13 September, Rome, Italy Y1 - 2012 UR - http://www.efmc9.eu/absbook/index.html ER - TY - GEN A1 - Merbold, Sebastian A1 - Brauckmann, Hannes A1 - Egbers, Christoph T1 - Torque measurements and numerical determination in differentially rotating wide gap Taylor-Couette flow T2 - Physical Review E Y1 - 2013 U6 - https://doi.org/10.1103/PhysRevE.87.023014 SN - 1550-2376 VL - 87 IS - 2 SP - 023014 -1 EP - 023014 -4 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Torque measurements in a wide gap Taylor-Couette flow T2 - 14th European Turbulence Conference, Lyon, France, September 1-4, 2013 Y1 - 2013 UR - http://etc14.ens-lyon.fr/etc-14-proceedings/accepted-talks/ ER - TY - CHAP A1 - Merbold, Sebastian A1 - Froitzheim, Andreas A1 - Egbers, Christoph ED - Fröhlich, Jochen ED - Odenbach, Stefan ED - Vogeler, Konrad T1 - Flow Pattern and angular motion transport in a wide gap Taylor-Couette flow T2 - Strömungstechnische Tagung 2014, Tagung anlässlich des 100. Geburtstags von Werner Albring Y1 - 2014 SN - 978-3-944331-78-2 PB - TUDpress Verlag der Wissenschaften CY - Dresden ER - TY - CHAP A1 - Hasanuzzaman, Gazi A1 - Merbold, Sebastian A1 - Egbers, Christoph ED - Czarske, Jürgen T1 - Experimentelle Untersuchung von Gebäude-integrierten Windführungen mit Laser-Doppler- Anemometrie T2 - Lasermethoden in der Strömungsmesstechnik, 23. Fachtagung, 8. - 10. September 2015, Dresden Y1 - 2015 SN - 978-3-9816764-1-9 SP - S. 64 PB - GALA CY - Karlsruhe ER - TY - GEN A1 - Veen, Roeland C. A. van der A1 - Huisman, Sander G. A1 - Merbold, Sebastian A1 - Harlander, Uwe A1 - Egbers, Christoph A1 - Lohse, Detlef A1 - Sun, Chao T1 - Taylor Couette turbulence at radius ratio =0,5:scaling, flow structures and plumes T2 - Journal of Fluid Mechanics Y1 - 2016 U6 - https://doi.org/10.1017/jfm.2016.352 SN - 1469-7645 SN - 0022-1120 VL - 799 SP - 334 EP - 351 ER - TY - GEN A1 - Öngüner, Emir A1 - Dittmar, Mirko A1 - Meyer, Peter A1 - Merbold, Sebastian A1 - Egbers, Christoph ED - Egbers, Christoph T1 - Cross-sectional PIV analysis in turbulent pipe flow at high Reynolds number T2 - Experimentelle Strömungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus Y1 - 2016 SN - 978-3-9816764-2-6 SP - S. 31 PB - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - CHAP A1 - Yousry, Mohamed A1 - Shahirpour, Amir A1 - Merbold, Sebastian A1 - Egbers, Christoph ED - Egbers, Christoph T1 - Influence on flow behaviour inside a rectangular channel by patterned surface T2 - Experimentelle Strömungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus Y1 - 2016 SN - 978-3-9816764-2-6 SP - S. 26 PB - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - CHAP A1 - Hasanuzzaman, Gazi A1 - Merbold, Sebastian A1 - Motuz, Vasyl A1 - Egbers, Christoph ED - Egbers, Christoph T1 - Experimental Investigation of Turbulent Structures and their Control in Boundary Layer Flow T2 - Experimentelle Strömungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus Y1 - 2016 SN - 978-3-9816764-2-6 SP - S. 27 PB - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - CHAP A1 - Hasanuzzaman, Gazi A1 - Merbold, Sebastian A1 - Motuz, Vasyl A1 - Egbers, Christoph T1 - Influence of micro-blowing technique on skin friction of boundary layer flows T2 - 11th European Fluid Mechanics Conference, Sept. 12-16, 2016, Sevilla, Spain Y1 - 2016 UR - http://www.efmc11.org/download/com/com_0650_3H6SHY.pdf ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph ED - Egbers, Christoph T1 - Taylor-Couette turbulenz at wide and very wide gap T2 - Experimentelle Strömungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus Y1 - 2016 SN - 978-3-9816764-2-6 SP - S. 14 PB - German Association for Laser Anemometry GALA e.V. CY - Karlruhe ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimentsl Investigations of Taylor-Couette flow at BTU Cottbus T2 - Book of abstracts, School ISTROF 2016, Instabilities and Turbulence in Strato-Rotational Flows, July 11-13th, 2016, Le Havre Y1 - 2016 UR - https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxzY2hvb2xpc3Ryb2Z8Z3g6NDA3Y2E3ZGQ2OWIwMTdmNQ ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimental Investigations of Taylor-Couette flow at BTU Cottbus T2 - Book of abstracts, School Instabilities and Turbulence in Stratified Rotational Flows (ISTROF), 11-13 September, Le Havre, France, 2016 Y1 - 2016 UR - https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxzY2hvb2xpc3Ryb2Z8Z3g6NDA3Y2E3ZGQ2OWIwMTdmNQ ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Momentum transport and flow structures in a wide gap fully turbulent Taylor-Couette flow T2 - Book of abstracts, 11th European Fluid Mechanics Conference (EFMC), 12-16 September, Seville, Spain Y1 - 2016 UR - http://www.efmc11.org/download/com/com_0647_WH3SGU.pdf ER - TY - CHAP A1 - Martinez-Arias, Borja A1 - Peixinho, Jorge A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Mutabazi, Innocent T1 - Influence of the radius ratio on the torque in turbulent Taylor-Couette flow T2 - ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany Y1 - 2015 SP - 30 EP - 31 CY - Cottbus ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Wide gap Taylor-Couette flow T2 - ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany Y1 - 2015 SP - 28 EP - 29 CY - Cottbus ER - TY - CHAP A1 - Merbold, Sebastian A1 - Froitzheim, Andreas A1 - Egbers, Christoph T1 - Turbulent Taylor-Couette flow for very wide gaps T2 - ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany Y1 - 2015 SP - 26 EP - 27 CY - Cottbus ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Torque measurements and flow visualization in a wide gap Taylor-Couette Flow T2 - 15th European turbulence conference (ETC), Delft, The Netherlands (2015) Y1 - 2015 UR - http://www.etc15.nl/proceedings/proceedings/documents/262.pdf ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - PIV Messungen in einer Taylor-Couette Strömung mit weitem Spalt T2 - Lasermethoden in der Strömungsmesstechnik, 23. Fachtagung, 8. - 10. September 2015, Dresden Y1 - 2015 SN - 978-3-9816764-1-9 SP - S. 27 PB - GALA CY - Karlsruhe ER - TY - CHAP A1 - Merbold, Sebastian A1 - Harlander, Uwe A1 - Egbers, Christoph T1 - Physics of rotating fluids, a DFG core facility centre T2 - 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics GAMM, March 6-10, 2017, Weimar, Germany, Book of abstracts Y1 - 2017 UR - https://www.tu-ilmenau.de/fileadmin/media/analysis/trunk/170304_BoA_GAMM_2017.pdf SP - S. 355 ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Flow organization in the region of the torque maximum in a wide gap Tayor-Couette experiment T2 - 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics GAMM, March 6-10, 2017, Weimar, Germany, Book of abstracts Y1 - 2017 UR - https://www.tu-ilmenau.de/fileadmin/media/analysis/trunk/170304_BoA_GAMM_2017.pdf SP - S. 362 ER - TY - GEN A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Velocity profiles, flow structures and scalings in a wide-gap turbulent Taylor-Couette flow T2 - Journal of Fluid Mechanics Y1 - 2017 U6 - https://doi.org/10.1017/jfm.2017.634 SN - 0022-112 SN - 1469-7645 VL - 831 SP - 330 EP - 357 ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Ezeta, Rodrigo A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Lohse, D. A1 - Sun, C. T1 - Formation of large scale vortices in the torque maximum region in Taylor-Couette flow T2 - 25. GALA - Fachtagung Experimentelle Strömungsmechanik, 5.-7. September 2017, Karlsruhe-Ettlingen Y1 - 2017 SN - 978-3-9816764-3-3 SP - 55 EP - 58 PB - Deutsche Gesellschaft für Laser-Anemometrie GALA e.V. CY - Karlsruhe ER - TY - CHAP A1 - Yousry, Mohamed A1 - Merbold, Sebastian A1 - Egbers, Christoph ED - Ruck, Bodo T1 - LDA measurements over hexagonal structured cavity inside turbulent channel flow T2 - Experimentelle Strömungsmechanik, 25. Fachtagung, 5.-7. September 2017, Karlsruhe Y1 - 2017 SN - 978-3-9816764-3-3 SP - S. 22 PB - Deutsche Gesellschaft für Laser-Anemometrie GALA e.V. CY - Karlsruhe ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Torque measurements in a Taylor-Couette experiment with very small radius ration of 0.357 T2 - 16th European Turbulence Conference, 21-24 August, 2017, Stockholm, Sweden Y1 - 2017 UR - http://www.delegia.com/app/data/8684/Abstract/28671/ETC16_Froitzheim.pdf ER - TY - CHAP A1 - Hasanuzzaman, Gazi A1 - Motuz, Vasyl A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Cuvier, Christophe A1 - Foucaut, Jean-Marc T1 - Turbulent boundary layer statistics under the influence of uniform micro-blowing T2 - 16th European Turbulence Conference, 21-24 August, 2017, Stockholm, Sweden Y1 - 2017 UR - http://www.delegia.com/app/data/8684/Abstract/29581/ETC16_Hasanuzzaman.pdf ER - TY - GEN A1 - Zanoun, El-Sayed A1 - Öngüner, Emir A1 - Shahirpour, Amir A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Spectral Analysis of Large Scale Structures in Fully Developed Turbulent Pipe Flow T2 - Proceedings in applied mathematics and mechanics : PAMM Y1 - 2018 U6 - https://doi.org/10.1002/pamm.201710293 SN - 1617-7061 N1 - Special Issue: 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Weimar 2017; Editors: C. Könke, Weimar, and C. Trunk, Ilmenau VL - 17 IS - 1 SP - 647 EP - 650 ER - TY - CHAP A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Ezeta, Rodrigo A1 - Lohse, D. A1 - Sun, C. T1 - Large scale vortices in the Taylor-Couette flow T2 - The 12th European Fluid Mechanics Conference, 9 September 2018 – 13 September 2018, Vienna, Austria Y1 - 2018 UR - http://info.tuwien.ac.at/efmc12/EFMC12_program_v3.2.pdf ER - TY - CHAP A1 - Hasanuzzaman, Gazi A1 - Merbold, Sebastian A1 - Motuz, Vasyl A1 - Egbers, Christoph A1 - Cuvier, Christophe A1 - Foucaut, Jean-Marc ED - Kähler, Christian J. ED - Hain, Rainer ED - Scharnowski, Sven ED - Fuchs, Thomas T1 - Experimental investigation of active control in turbulent boundary layer using uniform blowing T2 - Proceedings of the 5th International Conference on Experimental Fluid Mechanics, Munich 2018 Y1 - 2018 UR - https://doi.org/10.18726/2018_2 SN - 978-3-943207-32-3 SP - 180 EP - 185 PB - Institute of Fluid Mechanics and Aerodynamics, Universität der Bundeswehr CY - Neubiberg ER - TY - CHAP A1 - Merbold, Sebastian A1 - Froitzheim, Andreas A1 - Egbers, Christoph ED - Kähler, Christian J. ED - Hain, Rainer ED - Scharnowski, Sven ED - Fuchs, Thomas T1 - Torque in turbulent Taylor-Couette flow for small radius ratios T2 - Proceedings of the 5th International Conference on Experimental Fluid Mechanics, Munich 2018 Y1 - 2018 SN - 978-3-943207-32-3 U6 - https://doi.org/10.18726/2018_2 SP - 598 EP - 602 PB - Institute of Fluid Mechanics and Aerodynamics, Universität der Bundeswehr CY - Neubiberg ER - TY - GEN A1 - Froitzheim, Andreas A1 - Ezeta, Rodrigo A1 - Huisman, Sander G. A1 - Merbold, Sebastian A1 - Sun, Chao A1 - Lohse, Detlef A1 - Egbers, Christoph T1 - Statistics, plumes and azimuthally travelling waves in ultimate Taylor–Couette turbulent vortices T2 - Journal of Fluid Mechanics Y1 - 2019 U6 - https://doi.org/10.1017/jfm.2019.552 SN - 1469-7645 SN - 0022-1120 VL - Volume 876 SP - 733 EP - 765 ER - TY - GEN A1 - Froitzheim, Andreas A1 - Merbold, Sebastian A1 - Ostilla-Mónico, Rodolfo A1 - Egbers, Christoph T1 - Angular momentum transport and flow organization in Taylor-Couette flow at radius ratio of η=0.357" T2 - Physical Review Fluids Y1 - 2019 UR - https://link.aps.org/doi/10.1103/PhysRevFluids.4.084605 U6 - https://doi.org/10.1103/PhysRevFluids.4.084605 VL - 4 ER - TY - THES A1 - Merbold, Sebastian T1 - Experimental investigation on turbulent transport in Taylor-Couette flow Y1 - 2019 UR - https://cuvillier.de/de/shop/publications/8089-experimental-investigation-on-turbulent-transport-in-taylor-couette-flow SN - 978-3-7369-7068-7 PB - Cuvillier Verlag CY - Göttingen ET - 1. Auflage ER - TY - CHAP A1 - Yousry, Mohamed A1 - Merbold, Sebastian A1 - Egbers, Christoph ED - Delgado, Antonio T1 - Influence of convex structured surfaces on turbulent channel flow at different channel heights T2 - Experimentelle Strömungsmechanik : 27. Fachtagung 3.-5. September 2019 Erlangen Y1 - 2019 SN - 978-3-9816764-6-4 SP - 5.1 EP - 5.9 PB - Deutsche Gesellschaft für Laser-Anemometrie - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - GEN A1 - Nowak, Torsten A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Schacht, Ralph T1 - Novel Compact-Thermal-Model Approach to Estimate the Heat Spreading Effects of Flip-Chips on PCB regarding Laminar Flow Regimes T2 - 2019 25th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC) N2 - Today, electronic and thermal engineers want to figure out, which location are the most compliant one, to ensure electronic function of the system and get a reliable thermal design. Numerical simulations can help to understand thermal paths and interactions between electronic parts nearby. However, there are often time consuming, to set-up all material parameters and fluid flow properties. The usage of Compact Thermal Models (CTM) are often used for power application and can provide first solutions to heat transfer via solid substrate, thermal spreading and solid to fluid interactions. Those CTM cannot fully replace a complex fluid mechanical analysis with a Computational Fluid Dynamics (CFD) software environment. Furthermore, CTM can take place in preliminary studies during the early design phase of electronic systems within the implementation of key parameters e.g. thermal conductivity of the substrate, fluid flow velocity, power losses and different dimensions of the system. This paper continuous the experimental and numerical study of to complete an approach for CTM based thermal equivalent resistor networks with consideration of dynamic heat spreading along the substrate and laminar convective fluid interactions on typical Printed Circuit Boards (PCB) with micro-electronic Flip-Chip (FC) assemblies KW - CTM, Flip Chip, Laminar Flow Regimes Y1 - 2019 SN - 978-1-7281-2078-2 SN - 978-1-7281-2079-9 U6 - https://doi.org/10.1109/THERMINIC.2019.8923434 SN - 2474-1523 SN - 2474-1515 PB - IEEE ER - TY - GEN A1 - Nowak, Torsten A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Schacht, Ralph ED - Delgado, Antonio T1 - Experimentelle Studie mit numerischer Validierung von thermi-schen Kopplungs-Phänomenen mit in Flip-Chip-Technologie aufge-bauten Testchips auf Leiterplatten T2 - Experimentelle Strömungsmechanik : 27. Fachtagung 3.-5. September 2019 Erlangen N2 - In aktuellen mikro-elektronischen Systemen müssen verschiedene aktive und passive Bauteile auf engstem Raum miteinander auf dem Substrate (bspw. FR4-Leiterplatte) kombiniert werden. Die dabei stetig steigende Leistungsdichte bedarf einer optimierten Kühlstrategie und der Definition von konduktiven und konvektiven Entwärmungspfade, die bereits während der Layout-Designphase der Baugruppe berücksichtigt werden sollten. Strömungsmechanische Simulationen (CFD) können dabei ein erstes Abbild zur Analyse von Kopplungseffekten zwischen den Wärmequellen und der Umgebung liefern. Diese sind jedoch oft zeitaufwendig und es bedarf zumindest ein gewisses Grundverständnis, um die Fluid-mechanischen Parameter, das Vernetzen der Geometrien und die gewonnenen Ergebnisse korrekt zu interpretieren. Erste analytische Ansätze zur reduzierten Beschreibung von ungehäusten Chips auf Leiterplattensubstrat können durch thermische Widerstandsnetzwerke abgebildet und durch Aufteilung der Wärmeströme in Richtung Substrat (Wärmeleitung) und in Richtung des bewegten Fluides (Konvektion) näher beschrieben werden. KW - Wärmekopplung KW - Mikroelektronik KW - in-situ Temperaturerfassung Y1 - 2019 SN - 978-3-9816764-6-4 SP - 27.1 EP - 27.8 PB - Deutsche Gesellschaft für Laser-Anemometrie - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - GEN A1 - Nowak, Torsten A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Schacht, Ralph T1 - Numerical Study with Experimental Validation of Thermal Coupling Phenomena with Flip-Chip Assembled Test Dies on PCB T2 - 24th INTERNATIONAL WORKSHOP on Thermal Investigations of ICs and Systems, 2018 N2 - Numerical Study with Experimental Validation of Thermal Coupling Phenomena with Flip-Chip Assembled Test Dies on PCB. KW - Thermal Coupling, Flip Chip Y1 - 2018 SN - 978-1-5386-6759-0 SN - 978-1-5386-6760-6 U6 - https://doi.org/10.1109/THERMINIC.2018.8593313 SN - 2474-1523 SN - 2474-1515 PB - IEEE ER - TY - GEN A1 - Hasanuzzaman, Gazi A1 - Merbold, Sebastian A1 - Cuvier, Christophe A1 - Motuz, Vasyl A1 - Foucaut, Jean-Marc A1 - Egbers, Christoph T1 - Experimental investigation of turbulent boundary layers at high Reynolds number with uniform blowing, part I: statistics T2 - Journal of Turbulence N2 - Uniform blowing in wall bounded shear flows is well known for its drag reducing effects and has long been investigated ever since. However, many contemporary and former research on this topic has confirmed the drag reducing effect but very less is known regarding how blowing is effecting the Reynolds stresses at high Reynolds number. Therefore, effect of uniform blowing has been experimentally investigated using Stereo Particle Image Velocimetry (SPIV) measurements in a zero pressure gradient turbulent boundary layer (TBL). The data presented in this literature covers a large range of high Reynolds number flow e.g. Reθ = 7500∼19763 where Reynolds number is based on the momentum thickness. Upstream blowing was varied from 1%∼6% of free stream velocity and measurements were taken downstream after a short interval. Logarithmic and outer region of the TBL was given special attention in terms of investigating statistics and turbulence properties. KW - Turbulent boundary layers KW - drag reduction KW - flow control KW - particle image velocimetry KW - uniform blowing Y1 - 2020 UR - https://www.tandfonline.com/doi/full/10.1080/14685248.2020.1740239 U6 - https://doi.org/10.1080/14685248.2020.1740239 SN - 1468-5248 N1 - European High-Performance Infrastructures in Turbulence (EuHIT, FP7-INFRASTRUCTURES-2012-1) IS - 3 SP - 129 EP - 165 ER - TY - GEN A1 - Hallol, Zeinab A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Contribution of Large and Very Large Scale Motions to the Turbulent Kinetic energy in Turbulent Pipe Flow T2 - Proceedings in applied mathematics and mechanics : PAMM Y1 - 2021 U6 - https://doi.org/10.1002/pamm.202000229 SN - 1617-7061 VL - 20 IS - 1 ER - TY - GEN A1 - Hallol, Zeinab A1 - Yousry, Mohamed A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Time-resolved PIV measurements in fully developed turbulent pipe flow T2 - 25th International Congress of Theoretical and Applied Mechanics Milan (Italy), 22-27 August 2021 Y1 - 2021 UR - https://iutam.org/publications/ictam-proceedings/ictam_2020/ SN - 978-83-65550-31-6 SP - 1374 EP - 1375 ER - TY - GEN A1 - Hallol, Zeinab A1 - Yousry, Mohamed A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Effect of High Reynolds Number on the Behaviour of Large and Very Large Scale Motions in Fully Developed Turbulent Pipe Flow T2 - Fluid Dynamics Y1 - 2022 UR - https://link.springer.com/article/10.1134/S0015462822040048 U6 - https://doi.org/10.1134/S0015462822040048 SN - 0015-4628 SN - 1573-8507 VL - 57 IS - 4 SP - 524 EP - 537 ER - TY - GEN A1 - Hasanuzzaman, Gazi A1 - Merbold, Sebastian A1 - Motuz, Vasyl A1 - Egbers, Christoph T1 - Enhanced outer peaks in turbulent boundary layer using uniform blowing at moderate Reynolds number T2 - Journal of Turbulence Y1 - 2022 U6 - https://doi.org/10.1080/14685248.2021.2014058 SN - 1468-5248 VL - 23 IS - 1-2 SP - 68 EP - 95 ER - TY - GEN A1 - Hallol, Zeinab A1 - Yousry, Mohamed A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimental investigation to study energetic structures in pipe flow at high Reynolds numbers using POD analysis T2 - Journal of the Physical Society of Japan Y1 - 2022 U6 - https://doi.org/10.7566/JPSJ.91.094401 SN - 0031-9015 VL - 91 IS - 9 SP - 1 EP - 10 ER - TY - GEN A1 - Hasanuzzaman, Gazi A1 - Eivazi, Hamidreza A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Vinuesa, Ricardo T1 - Enhancement of PIV measurements via physics-informed neural networks T2 - Measurement Science and Technology Y1 - 2022 UR - https://iopscience.iop.org/article/10.1088/1361-6501/aca9eb U6 - https://doi.org/10.1088/1361-6501/aca9eb SN - 1361-6501 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Hasanuzzaman, Gazi A1 - Buchwald, Tom A1 - Schunk, Christoph A1 - Schmeling, Daniel A1 - Volkmann, André A1 - Brinkema, Robert A1 - Hampel, Uwe A1 - Schröder, Andreas A1 - Egbers, Christoph ED - Cierpka, Christian T1 - Reference experiment for aerosol particle transport for dynamic situations T2 - Experimentelle Strömungsmechanik : 29. Fachtagung, 6.-8. September 2022, Ilmenau T2 - Referenzexperiment zum Aerosolpartikel-Transport für dynamische Situationen Y1 - 2022 UR - https://www.gala-ev.org/images/Beitraege/Beitraege2022/pdf/09.pdf SN - 978-3-9816764-8-8 PB - Deutsche Gesellschaft für Laser-Anemometrie - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - CHAP A1 - Hamede, Mohammed Hussein A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Formation of flow patterns in a counter-rotating very wide gap Taylor-Couette flow (η = 0.1) T2 - Experimentelle Strömungsmechanik : 29. Fachtagung, 6.-8. September 2022, Ilmenau T2 - Bildung von Strömungsstrukturen in einem gegenrotierenden Taylor-Couette System mit sehr weitem Spalt (η = 0.1) Y1 - 2022 UR - https://www.gala-ev.org/images/Beitraege/Beitraege2022/pdf/48.pdf SN - 978-3-9816764-8-8 PB - Deutsche Gesellschaft für Laser-Anemometrie - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - CHAP A1 - Merbold, Sebastian A1 - Kumar, Chandana B.V. A1 - Egbers, Christoph T1 - Transparent water tunnel for educational purpose of fundamental flow phenomena and Laser-optical measurement techniques T2 - Experimentelle Strömungsmechanik : 29. Fachtagung, 6.-8. September 2022, Ilmenau T2 - Transparenter Wasserkanal zum Lehrzweck grundlegendener Strömungsphänome und Laser-optischen Messtechniken Y1 - 2022 UR - https://www.gala-ev.org/images/Beitraege/Beitraege2022/pdf/53.pdf SN - 978-3-9816764-8-8 PB - Deutsche Gesellschaft für Laser-Anemometrie - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER - TY - GEN A1 - Hamede, Mohammed Hussein A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Transition to the ultimate turbulent regime in a very wide gap Taylor-Couette flow (η = 0.1) with a stationary outer cylinder T2 - EPL (Europhysics Letters) Y1 - 2023 U6 - https://doi.org/10.1209/0295-5075/acdea1 SN - 1286-4854 VL - 143 IS - 2 ER - TY - GEN A1 - Hamede, Mohammed Hussein A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimental investigation of turbulent counter-rotating Taylor–Couette flows for radius ratio η = 0.1 T2 - Journal of Fluid Mechanics Y1 - 2023 U6 - https://doi.org/10.1017/jfm.2023.392 SN - 1469-7645 VL - 964 SP - A36-1 EP - A36-29 ER - TY - GEN A1 - Merbold, Sebastian A1 - Hamede, Mohammed Hussein A1 - Froitzheim, Andreas A1 - Egbers, Christoph T1 - Flow regimes in a very wide-gap Taylo-Couette flow with counter rotating cylinders T2 - Philosophical transactions of the Royal Society : Series A, Mathematical, physical and engineering sciences Y1 - 2023 U6 - https://doi.org/10.1098/rsta.2022.0113 SN - 1364-503X SN - 1471-2962 VL - 381 IS - 2246 ER - TY - GEN A1 - Hamede, Mohammed Hussein A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimental methods for investigating the formation of flow patterns in a very wide gap Taylor-Couette flow ($\eta=0.1$) T2 - tm - Technisches Messen Y1 - 2023 U6 - https://doi.org/10.1515/teme-2022-0107 SN - 2196-7113 VL - 90 IS - 5 SP - 332 EP - 339 ER - TY - GEN A1 - Merbold, Sebastian A1 - Hasanuzzaman, Gazi A1 - Buchwald, Tom A1 - Schunk, Christoph A1 - Schmeling, Daniel A1 - Volkmann, André A1 - Brinkema, Robert A1 - Hampel, Uwe A1 - Schröder, Andreas A1 - Egbers, Christoph T1 - Reference experiment on aerosol particle transport for dynamic situations T2 - tm - Technisches Messen Y1 - 2023 U6 - https://doi.org/10.1515/teme-2022-0118 SN - 2196-7113 VL - 90 IS - 5 ER - TY - GEN A1 - Buchwald, Tom A1 - Hasanuzzaman, Gazi A1 - Merbold, Sebastian A1 - Schanz, Daniel A1 - Egbers, Christoph A1 - Schröder, Andreas T1 - Large-scale flow field and aerosol particle transport investigations in a classroom using 2D-Shake-The-Box Lagrangian Particle Tracking T2 - Heliyon Y1 - 2023 U6 - https://doi.org/10.1016/j.heliyon.2023.e22826 SN - 2405-8440 VL - 9 IS - 12 ER - TY - GEN A1 - Barzantny, Marcel A1 - Hamede, Mohammed Hussein A1 - Majchrzyk, Michał A1 - Merbold, Sebastian A1 - Egbers, Christoph A1 - Kostowski, Wojciech T1 - Experimental investigation of the flow characteristics driving the Ranque–Hilsch phenomenon T2 - International journal of heat and mass transfer N2 - The Ranque–Hilsch vortex tube (RHVT) is a device that separates a pressurized inlet stream into two decompressed streams of different temperature, flowing to the so-called hot and cold outlets. In this study, the flow structures within the vortex tube were examined qualitatively. The examination considered both compressible and incompressible fluids, using pressurized air and water as working fluids. A parametric study was conducted, in which the fluid inlet pressure and the vortex tube length were varied. Three tubes, with the same diameter but differing lengths (100, 180, and 240 mm) were utilized. The flow inside the tube was investigated using a flow visualization technique, which was employed in a variety of configurations and setups contingent on the specific fluid conditions under examination. The visualization process required the use of aerosol injection in the case of air, and kalliroscope particles in the case of water investigation. The research enabled the visualization of the flow structure within the vortex tube, thereby significantly advancing the comprehension of the underlying physical processes. The findings of the experimental research demonstrated the existence of phenomena of considerable scientific value. The internal vortex and its spatial and temporal structure observed in the RHVT were consistent with literature data. This was achieved despite the so-far established consensus that this type of research is challenging and not entirely reliable. In the course of water-based investigation, the cavitation phenomenon was observed in the vicinity of the internal vortex. This discovery is likely to be the first of its kind and may contribute significantly to the advancement of research on the Ranque–Hilsch phenomenon. KW - Ranque–Hilsch phenomenon KW - Vortex tube KW - Flow visualization KW - Cavitation Y1 - 2025 U6 - https://doi.org/10.1016/j.ijheatmasstransfer.2025.127543 SN - 0017-9310 VL - 253 SP - 1 EP - 14 PB - Elsevier BV CY - Amsterdam ER -