@misc{ZanounDurstSalehetal., author = {Zanoun, El-Sayed and Durst, F. and Saleh, O. and Al-Salaymeh, Ahmed}, title = {Wall skin friction and mean velocity profiles of fully developed turbulent pipe flows}, series = {Experimental Thermal and Fluid Science}, volume = {32}, journal = {Experimental Thermal and Fluid Science}, number = {1}, issn = {0894-1777}, doi = {10.1016/j.expthermflusci.2007.04.002}, pages = {249 -- 261}, language = {en} } @inproceedings{OenguenerDittmarMeyeretal., author = {{\"O}ng{\"u}ner, Emir and Dittmar, Mirko and Meyer, P. and Zanoun, El-Sayed and Egbers, Christoph}, title = {Wall-bounded turbulent Structures in pipe flow based on streamwise and cross-sectional PIV at Re=10^4-10^5}, series = {11th European Fluid Mechanics Conference, Sept. 12-16, 2016, Sevilla, Spain}, booktitle = {11th European Fluid Mechanics Conference, Sept. 12-16, 2016, Sevilla, Spain}, language = {en} } @misc{BorciaRichterBorciaetal., author = {Borcia, Ion-Dan and Richter, Sebastian and Borcia, Rodica and Sch{\"o}n, Franz-Theo and Harlander, Uwe and Bestehorn, Michael}, title = {Wave propagation in a circular channel: sloshing and resonance}, series = {The European Physical Journal Special Topics}, volume = {Vol. 232}, journal = {The European Physical Journal Special Topics}, number = {4}, issn = {1951-6401}, doi = {10.1140/epjs/s11734-023-00790-z}, pages = {461 -- 468}, abstract = {Surface wave resonance of a liquid (water) layer confined in a circular channel is studied both experimentally and numerically. For the experiment, eight unevenly distributed ultrasonic distance sensors measure the local height of the wave surface. The resonance curves show maxima only for odd multiples of the fundamental resonance frequency . We explained this behavior using a simple intuitive "ping-pong" like model. Collision of wave fronts can be observed for higher frequencies. Also, the wave reflection on the walls can be treated as wave collision with itself. The non-linearity seems to be weak in our study so the delay in the wave propagation before and after the collision is small. Time-space plots show localized propagating waves with high amplitudes for frequencies near resonance. Between the peaks low amplitude and harmonic patterns are observed. However, for higher frequencies, the frequency band for localized waves becomes wider. In the Fourier space-time plane, this can be observed as a point for the harmonic patterns or a superposition of two lines: one line parallel to wave-vector k axis corresponding to the excitation frequency and a second line with inclination given by wave propagation velocity . For planned future work, this result will help us to reconstruct the whole water surface elevation using time-series from only a few measurement points}, language = {en} } @misc{KochHarlanderEgbers, author = {Koch, Sandy and Harlander, Uwe and Egbers, Christoph}, title = {Wave-attractors and mean flow in a spherical shell due to time-modulated rotation}, language = {en} } @inproceedings{OenguenerZanounFiorinietal., author = {{\"O}ng{\"u}ner, Emir and Zanoun, El-Sayed and Fiorini, Tommaso and Bellani, Gabriele and Shahirpour, Amir and Egbers, Christoph and Talamelli, Alessandro}, title = {Wavenumber Dependence of Very Large-Scale Motions in CICLoPE at 4800 ≤ Reτ ≤ 37.000}, series = {Progress in Turbulence VII, Proceedings of the iTi Conference in Turbulence 2016}, booktitle = {Progress in Turbulence VII, Proceedings of the iTi Conference in Turbulence 2016}, editor = {{\"O}rl{\"u}, Ramis and Talamelli, Alessandro and Peinke, Joachim and Oberlack, Martin}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-57933-7}, pages = {101 -- 106}, language = {en} } @inproceedings{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Rabitti, A. and Maas, L. R. M. and Egbers, Christoph}, title = {Wellen und Wellenattrktoren in einer Kugelschale mit zeitlich modulierter Rotation}, language = {de} } @inproceedings{FroitzheimMerboldEgbers, author = {Froitzheim, Andreas and Merbold, Sebastian and Egbers, Christoph}, title = {Wide gap Taylor-Couette flow}, series = {ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany}, booktitle = {ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany}, address = {Cottbus}, pages = {28 -- 29}, language = {en} } @inproceedings{SeeligHarlanderBorciaetal., author = {Seelig, Torsten and Harlander, Uwe and Borcia, Ion-Dan and Egbers, Christoph}, title = {Zonal mean flow excitation due to inertial waves propagating in the meridional plane}, series = {European Geosciences Union (EGU), 9th General Assembly, Vienna, Austria, 22-27 April}, booktitle = {European Geosciences Union (EGU), 9th General Assembly, Vienna, Austria, 22-27 April}, language = {en} } @phdthesis{Larcher, author = {Larcher, Thomas von}, title = {Zur Stabilit{\"a}t barokliner Wellen im starr rotierenden Zylinderspalt}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, isbn = {3-18-348607-6}, language = {de} } @article{TravnikovEgbers, author = {Travnikov, Vadim and Egbers, Christoph}, title = {Zur Stabili{\"a}t thermischer Konvektion im Kugelspalt unter Erdbedingungen Energietheorie}, language = {de} } @inproceedings{UhligKirnerPreussetal., author = {Uhlig, Benedict and Kirner, Claus and Preuß, Ann-Christin and Graf, Johann and Neben, Matthias}, title = {{\"O}ltransport durch die Kolbenringe}, series = {Abschluss- und Zwischenberichte der Forschungsstellen, gehalten auf der Informationstagung der FVV am 29. September 2016 in Madgeburg}, booktitle = {Abschluss- und Zwischenberichte der Forschungsstellen, gehalten auf der Informationstagung der FVV am 29. September 2016 in Madgeburg}, publisher = {FVV, Forschungsvereinigung Verbrennungskraftmaschinen}, address = {Frankfurt}, pages = {197 -- 230}, language = {de} } @article{StueckeSchwarzScurtuetal., author = {St{\"u}cke, Peter and Schwarz, M. and Scurtu, Nicoleta and Egbers, Christoph}, title = {{\"U}ber die exzentrische Zylinderspaltstr{\"o}mung bei engen Spaltweiten}, language = {de} }