TY - CHAP A1 - Kerstein, Alan R. A1 - Glawe, Christoph A1 - Schmidt, Heiko A1 - Klein, Rupert A1 - Gonzalez-Juez, Esteban D. A1 - Schmidt, Rodney T1 - Computational modeling of scalar transport and buoyancy effects in turbulent flows using ODTLES T2 - Bulletin of the American Physical Society Y1 - 2012 UR - http://meeting.aps.org/Meeting/DFD12/Event/176984 N1 - 65th Annual Meeting of the APS Division of Fluid Dynamics, Sunday–Tuesday, November 18–20, 2012 San Diego, California VL - 57 IS - 17 ER - TY - CHAP A1 - Schmidt, J.-R. A1 - Egbers, Christoph A1 - Rath, H. J. T1 - Experiments on the isothermal flow in wide spherical gaps Y1 - 2001 ER - TY - CHAP A1 - Ristau, R. A1 - Meier, M. A1 - Egbers, Christoph A1 - Schmidt, J.-R. A1 - Poppe, T. T1 - Partikelbeladene Strömungen : Simulation und Messtechnik Y1 - 2001 ER - TY - CHAP A1 - Stücke, Peter A1 - Nobis, Matthias A1 - Schmidt, M. A1 - Scurtu, Nicoleta A1 - Egbers, Christoph T1 - Laseroptische und numerische Untersuchung von Taylorwirbeln Y1 - 2010 ER - TY - CHAP A1 - Kempka, Thomas A1 - Herd, Rainer A1 - Huenges, Ernst A1 - Jahnke, Christoph A1 - Kühn, Michael A1 - Moeck, Inga A1 - Munoz, Gerard A1 - Ritter, Oliver A1 - Schmidt-Hattenberger, Cornelia A1 - Voigt, Hans-Jürgen A1 - Zimmermann, Günter ED - Schueth, C. T1 - brine - CO2 storage in eastern Brandenburg:Implications for geothermal heat provision and conception of a salinisation early warning system KW - brine KW - CO2 KW - Brandenburg KW - salinisation KW - geothermal heat provision Y1 - 2010 ER - TY - GEN A1 - Schulz, Falko T. A1 - Glawe, Christoph A1 - Schmidt, Heiko A1 - Kerstein, Alan R. T1 - Toward modeling of CO2 multi-phase flow patterns using a stochastic multi-scale approach T2 - Environmental Earth Sciences Y1 - 2013 U6 - https://doi.org/10.1007/s12665-013-2461-5 SN - 1866-6299 VL - 70 IS - 8 SP - 3739 EP - 3748 ER - TY - CHAP A1 - Schulz, Falko T. A1 - Glawe, Christoph A1 - Schmidt, Heiko A1 - Kerstein, Alan R. T1 - Liquid jet simulation using one-dimensional turbulence 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 - Schulz, Falko T. A1 - Glawe, Christoph A1 - Kerstein, Alan R. A1 - Schmidt, Heiko T1 - Toward modeling of supercritical CO2 flow using map-based advection T2 - EGU General Assembly 2012, held 22-27 April, 2012 in Vienna Y1 - 2012 UR - http://meetingorganizer.copernicus.org/EGU2012/EGU2012-8816-1.pdf N1 - EGU2012-8816-1 ER - TY - CHAP A1 - Glawe, Christoph A1 - Klein, Rupert A1 - Kerstein, Alan R. A1 - Schmidt, Heiko T1 - Towards the simulation of gravity waves using the One-Dimensional Turbulence model T2 - EGU General Assembly 2012, held 22-27 April, 2012 in Vienna Y1 - 2012 UR - http://meetingorganizer.copernicus.org/EGU2012/EGU2012-4821.pdf N1 - EGU2012-4821 ER - TY - CHAP A1 - Nobis, Matthias A1 - Reinke, Peter A1 - Schmidt, Marcus A1 - Redlich, Marcel A1 - Egbers, Christoph A1 - Herzog, Nicoleta A1 - Gorenz, Paul A1 - Christl, Andreas T1 - Untersuchung der instationären Gleitlagerströmung T2 - 21. GALA-Tagung 2013, Lasermethoden in der Strömungsmesstechnik, 03. - 05. September 2013, München Y1 - 2013 SN - 978-3-9805613-9-6 SP - 51.1 EP - 51.10 PB - Dt. Gesellschaft für Laser-Anemometrie CY - Karlsruhe ER - TY - CHAP A1 - Glawe, Christoph A1 - Schmidt, Heiko A1 - Kerstein, Alan R. T1 - ODTLES: Mulitscale turbulence modeling and buoyant application T2 - Book of abstracts, 7th European Postgraduate Fluid Dynamics Conference, Ilmenau, Germany, 14th - 17th, July 2014 Y1 - 2014 CY - Ilmenau ER - TY - GEN A1 - Schmidt, Heiko A1 - Glawe, Christoph A1 - Jozefik, Zoltan A1 - Meiselbach, Falko T. A1 - Kerstein, Alan R. T1 - On the benefits of ODT-based stochastic turbulence modeling T2 - Proceedings in applied mathematics and mechanics : PAMM N2 - We summarize the group’s progress in applying, analyzing, and improving ODT and ODT-based stochastic turbulence models like ODTLES. Compared to DNS these models span a wider range of scales while compared to RANS/LES (i) the molecular effects are retained and (ii) no assumption of scale separation is made. In this regard ODTLES has more properties of DNS than of standard LES. Y1 - 2014 SN - 1617-7061 VL - 14 IS - 1 SP - 655 EP - 656 ER - TY - RPRT A1 - Kempka, Thomas A1 - Herd, Rainer A1 - Huenges, Ernst A1 - Jahnke, Christoph A1 - Janetz, Silvio A1 - Jolie, Egbert A1 - Kühn, Michael A1 - Margi, Fabien A1 - Möller, Marcus A1 - Munoz, Gerard A1 - Ritter, Oliver A1 - Schafrik, Wladislaw A1 - Schmidt-Hattenberger, Cornelia A1 - Tillner, Elena A1 - Voigt, Hans-Jürgen A1 - Zimmermann, Günter T1 - CO2-Speicherung in Ostbrandenburg: Implikationen für eine synergetische geothermische Energiegewinnung und Konzeptionierung eines Frühwarnsystems gegen Grundwasserversalzung KW - CO2-Speicherung Y1 - 2014 N1 - Final report BMBF-Projekt brine N1 - 03G0758A, 03G0758B CY - Potsdam [u.a.] ER - TY - CHAP A1 - Kempka, Thomas A1 - Herd, Rainer A1 - Huenges, Ernst A1 - Endler, Ricarda A1 - Jahnke, Christoph A1 - Janetz, Silvio A1 - Jolie, Egbert A1 - Kühn, Michael A1 - Magri, Fabien A1 - Meinert, Peter A1 - Moeck, Inga A1 - Möller, Marcus A1 - Munoz, Gerard A1 - Ritter, Oliver A1 - Schafrik, Wladislaw A1 - Schmidt-Hattenberger, Cornelia A1 - Tillner, Elena A1 - Voigt, Hans-Jürgen A1 - Zimmermann, Günter ED - Liebscher, Axel ED - Münch, Ute T1 - Geological Storage of CO2 – Long Term Security Aspects KW - Caprock Formation - Carbon Capture - Fluid Migration - Geological CO2 Storage - Geological Carbon Sequestration - Reservoir Management - Risk Analysis Y1 - 2015 UR - http://www.springer.com/earth+sciences+and+geography/geophysics/book/978-3-319-13929-6 SN - 978-3-319-13929-6 SP - 183 EP - 209 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Jozefik, Zoltan A1 - Frechen, Tobias Nanu A1 - Hinz, Christoph A1 - Schmidt, Heiko T1 - A cellular automata approach for modeling surface water runoff T2 - European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015 Y1 - 2015 UR - http://meetingorganizer.copernicus.org/EGU2015/EGU2015-12675.pdf N1 - EGU2015-12675 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - GEN A1 - Egbers, Christoph A1 - Gorenz, Paul A1 - Schmidt, Marcus A1 - Wolf, Carsten T1 - 3-D-CFD-Simulation der Schmierspaltströmung in einem Radialgleitlager T2 - Motortechnische Zeitschrift : MTZ Y1 - 2015 SN - 2192-8843 VL - 76 IS - 7-8 SP - 66 EP - 73 ER - TY - CHAP A1 - Kempka, Thomas A1 - Herd, Rainer A1 - Huenges, Ernst A1 - Endler, Ricarda A1 - Jahnke, Christoph A1 - Janetz, Silvio A1 - Jolie, Egbert A1 - Kühn, Michael A1 - Magri, Fabien A1 - Meinert, Peter A1 - Moeck, Inga A1 - Möller, Marcus A1 - Munoz, Gerard A1 - Ritter, Oliver A1 - Schafrik, Wladislaw A1 - Schmidt-Hattenberger, Cornelia A1 - Tillner, Elena A1 - Voigt, Hans-Jürgen A1 - Zimmermann, Günter ED - Liebscher, Axel ED - Münch, Ute T1 - Joint Research Project Brine: Carbon Dioxide Storage in Eastern Brandenburg; Implications for Synergetic Geothermal Heat Recovery and Conceptualization of an Early Warning System Against Freshwater Salinization T2 - Geological Storage of CO2 - Long Termim Security Aspects KW - Carbon Dioxide Storage, CCS, Freshwater Salinization, Early Warning System Y1 - 2015 UR - http://www.springer.com/eart+sciences+and+geography/geophysics/book/978-3-319-13929-6 SN - 978-3-319-13929-6 U6 - https://doi.org/10.1007/978-3-319-13930-2 SP - 183 EP - 208 PB - Springer CY - Cham Switzerland ER - TY - CHAP A1 - Glawe, Christoph A1 - Schulz, Falko T. A1 - Gonzalez-Juez, Esteban D. A1 - Schmidt, Heiko A1 - Kerstein, Alan R. T1 - ODTLES Simulations of Turbulent Flows through Heated Channels and Ducts T2 - 8th International Symposium on turbulence and shear flow phenomena (TSFP8), 28–30 August 2013, Poitiers, France, vol. 2 N2 - A widely occurring problem in fluid dynamics either in engineering or e.g. hydrology is the turbulent transport through channels and ducts. ODTLES, a stochastic based multi-scale and multi-dimensional model, is a promising tool to describe these flows even including scalar proper- ties like temperature. We are quantifying the ability of ODTLES to describe the heated channel flow with respect to the Prandtl number and the flow through squared ducts with respect to the Reynolds number. Y1 - 2013 UR - http://www.tsfp-conference.org/proceedings/2013/v2/htc.pdf SP - 1 EP - 6 ER - TY - GEN A1 - Glawe, Christoph A1 - Schmidt, Heiko A1 - Kerstein, Alan R. A1 - Klein, Rupert T1 - XLES Part I: Introduction to Extended Large Eddy Simulation T2 - arXiv.org N2 - Direct numerical simulation (DNS), mostly used in fundamental turbulence research, is limited to low turbulent intensities due the current and future computer resources. Standard turbulence models, like RaNS (Reynolds averaged Navier-Stokes) and LES (Large Eddy Simulation), are applied to flows in engineering, but they miss small scale effects, which are frequently of importance, see e.g. the whole area of reactive flows, flows with apparent Prandtl or Schmidt number effects, or even wall bounded flows. A recent alternative to these standard approaches is the one-dimensional turbulence (ODT) model, which is limited to 1D sub-domains. In two papers we will provide a generalized filter strategy, called XLES (extended LES), including a formal theory (part I) and one special approach in the XLES family of models, called ODTLES (in part II (see Glawe et al. (2015))). ODTLES uses an ODT sub-grid model to describe all turbulent scales not represented by XLES, which leaves the larger scales to be simulated in 3D. This allows a turbulence modeling approach with a 3D resolution mainly independent of the turbulent intensity. Thus ODTLES is able to compute highly turbulent flows in domains of moderate complexity affordably and including the full range of turbulent and diffusive scales. The convergence of XLES to DNS is shown and the unconventional XLES advection approach is investigated in basic numerical tests. In part II, highly turbulent channel and duct flow results are discussed and show the future potential of XLES and ODTLES. Y1 - 2015 UR - http://arxiv.org/abs/1506.04930 ER - TY - GEN A1 - Glawe, Christoph A1 - Schmidt, Heiko A1 - Kerstein, Alan R. A1 - Klein, Rupert T1 - XLES Part II: From Extended Large Eddy Simulation to ODTLES T2 - arXiv.org N2 - In turbulence research and flow applications, turbulence models like RaNS (Reynolds averaged Navier-Stokes) models and LES (Large Eddy Simulation) are used. Both models filter the governing flow equations. Thus a scale separation approach is introduced for modeling purposes with the large scales simulated using a numerical scheme while smaller scales are assumed to be less important and might be modeled more or less easily. Unfortunately small scales are frequently of big importance, e.g. in reactive flows, wall bounded flows, or flows with significant Prandtl or Schmidt number effects. Recent alternatives to these standard models are the class of models based on the one-dimensional turbulence (ODT) idea, like ODTLES. The ability of ODT to capture highly turbulent flows (recently up to Reτ=6×105) allows ODTLES to realize 3D resolutions basically independent of the turbulent intensity. In two papers we provide a formal theory and application of an innovative modeling strategy for highly turbulent flows in domains of moderate complexity: In part I (see Glawe et al. (2015)) a new general filtering approach, called XLES (extended LES), is introduced. Contrary to LES, XLES is based on 2D filtering of the governing equations, whereby additional small scale terms are interpreted numerically. In this work a new ansatz for the ODTLES model is introduced as one special approach in the XLES family of models by incorporating the ODT model into XLES. The ODT model introduces microstructures not captured by the XLES filtered equations. To illustrate the ODTLES model capabilities, turbulent channel and duct flows up to friction Reynolds number Reτ=10000 are studied. Y1 - 2015 UR - http://arxiv.org/abs/1506.04938 ER - TY - CHAP A1 - Glawe, Christoph A1 - Schmidt, Heiko A1 - Kerstein, Alan R. T1 - ODTLES: A Multi-scale Ansatz for highly turbulent flows T2 - 15 The European turbulence conference, 25-28 august, 2015, Delft, The Netherland N2 - We use ODTLES, a multi-dimensional extension of the One-Dimensional-Turbulence model (ODT). ODT describes turbulent advection on a 1D sub-domain using a stochastic process for turbulent advection. These 1D sub-domains are coupled to obtain a 3D approach. ODTLES is applied to channel flow. Preliminary results for the pdf of the wall shear stress are compared to DNS. Y1 - 2015 UR - http://www.etc15.nl/proceedings/proceedings/documents/431.pdf ER - TY - CHAP A1 - Zellhöfer, David A1 - Böttcher, Thomas A1 - Bertram, Maria A1 - Schmidt, Christoph A1 - Tillmann, Claudius A1 - Uhlig, Markus A1 - Zierenberg, Marcel A1 - Schmitt, Ingo ED - Markl, Volker ED - Saake, Gunter ED - Sattler, Kai-Uwe ED - Hackenbroich, Gregor ED - Mitschang, Bernhard ED - Härder, Theo ED - Köppen, Veit T1 - PythiaSearch - Interaktives, Multimodales Multimedia-Retrieval T2 - Datenbanksysteme für Business, Technologie und Web (BTW), Proceedings der 15. Fachtagung des GI-Fachbereichs "Datenbanken und Informationssysteme" (DBIS), 2013, Magdeburg, Deutschland. N2 - PythiaSearch ist ein interaktives Multimedia-Retrieval-System. Es vereint verschiedene Suchstrategien, diverse Visualisierungen und erlaubt eine Personalisierung der Retrieval-Ergebnisse mittels eines Präferenz-basierten Relevance Feedbacks. Das System nutzt die probabilistische Anfragesprache CQQL und erlaubt eine multi-modale Anfragedefinition basierend auf Bildern, Texten oder Metadaten. Y1 - 2013 UR - http://subs.emis.de/LNI/Proceedings/Proceedings214/article6881.html UR - http://subs.emis.de/LNI/Proceedings/Proceedings214/495.pdf SN - 978-3-88579-608-4 SP - 495 EP - 498 PB - Gesellschaft für Informatik CY - Bonn ER - TY - GEN A1 - Nobis, Matthias A1 - Reinke, Peter A1 - Schmidt, Marcus A1 - Egbers, Christoph ED - Egbers, Christoph T1 - Einfluss der Wellenverlagerung auf das Strömungsfeld im Schmierspalt eines Gleitlagermodells T2 - Experimentelle Strömungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus Y1 - 2016 SN - 978-3-9816764-2-6 SP - S. 29 PB - German Association for Laser Anemometry GALA e.V. CY - Karlsruhe ER -