Turbulence, Heat and Turbulence, Heat and (Editors) Mass Transfer - PowerPoint PPT Presentation

Hanjali ć Nagano Jakirli ć Turbulence, Heat and Turbulence, Heat and (Editors) Mass Transfer Mass Transfer 6 6 Edited by K. Hanjali ć Y. Nagano S. Jakirli ć ISBN 978-1-56700-262-1 Begell House Inc. New York, Wallingford (UK)

Organizing Committee K. Hanjali ć , Chairman G.P. Celata, ENEA, Italy Sapienza University of Rome , Italy / Delft T. Gatski, University of Poitiers, France University of Technology, The Netherlands S. Girimaji, Texas A&M University, USA Y. Nagano, Co-Chairman, H. Hattori, Nagoya Inst. of Technology, Japan Nagoya Institute of Technology, Japan B. E. Launder, University of Manchester, UK Franco Rispoli, Co-Chairman D. Laurence, Electricité de France / Sapienza University of Rome, Italy University of Manchester, UK S. Jakirli ć , Symposium Secretary B. Milton, UNSW, Australia Darmstadt Univ. of Technology, Germany T. Miyauchi, Tokyo Inst. of Technology, Japan D. Borello, Organizing Secretary A. Pollard, Queen’s University, Canada Sapienza University of Rome, Italy Scientific Advisory Committee H.I. Andersson, Norway S. E. Elgobashi, USA P. Orlandi, Italy B. Basara, Austria S. Fu, China J.C. F. Pereira, Portugal M. Behnia, Australia G. Hetsroni, Israel R. Piva, Italy R. Bennacer, France H. Iacovides, UK P. Le Quere, France D. Bergstrom, Canada J. Janicka, Germany M. Reeks, UK B.J. Boersma, Nl W.P. Jones, UK D.J.E.M. Roekaerts, Nl A. Cenedese, Italy N. Kasagi, Japan G.P. Romano, Italy H. Choi, Korea H. Kawamura, Japan O. Simonin, France D. Č okljat, UK S. Kenjereš, Nl A.A. van Steenhoven, Nl A. Corsini, Italy S. Komori, Japan K. Suga, Japan A. Leki ć , Bosnia Herzegovina T. J. Craft, UK H.J. Sung, Korea M. Cumo, Italy R. Manceau, France J. Szmyd, Poland L. Davidson, Sweden D. Markovich, Russia Z. Tao, China S. Drobniak, Poland F. Menter, Germany P. Tucker, UK P. Durbin, USA O. Metais, France H. Yoshida, Japan J. K. Eaton, USA S. Obi, Japan Z. Zhang, China Sponsors Sapienza University of Rome, Italy Associazione Termotecnica Italiana - Delft University of Technology, The Netherlands Sezione Lazio, Italy Nagoya Institute of Technology, Japan AVL-List GmbH, Austria EU Marie Curie Actions ANSYS GmbH, Germany v

Contents Preface …………………………………………………………………………………….... iii Symposium Organizing Committee …….………………………………………………….. v Scientific Advisory Committee ……………………………………………..……………… v Sponsors ...………………………………………………………………………………….. v Contents .…………………………………………………………………………………… vii Keynote Lectures 1 Heat and fluid flow simulations for deciding tomorrow's energies Jean-Paul Chabard and Dominique Laurence …………………………………………….. 3 Advanced diagnostics in turbulent reactive flows S.H.R. Müller, B. Böhm, C. Heeger and Andreas Dreizler ………………………...……..... 19 Effects of bubbles, droplets and particles on heat transfer in turbulent flows Yoshimichi Hagiwara ………………………..…………...………………………………… 31 Challenges in large-scale environmental and geophysical CFD simulations Jean-Claude André ………………………………………………………………………… 49 Microscale heat transfer in single- and two-phase flows: scaling, stability, transition Gian Piero Celata …..……..……………………………………………………………….. 59 75 1. Fundamentals The local entrainment velocity is a viscous quantity M. Holzner, B. Lüthi, A. Liberzon, A. Tsinober and W. Kinzelbach ….................................. 77 Thermodynamic consistence of modeling molecular diffusion, energy flux and entropy production R. Groll .…………………………………………………………………………………….. 81 Turbulent Poiseuille flow with wall transpiration I. I. Vigdorovich and M. Oberlack …………………………………………………………. 85 Poiseuille flow of liquid methane in nanoscopic graphite channels by molecular dynamics simulation M. Horsch, J. Vrabec, M. Bernreuther and H. Hasse ……………………………………... 89 A low-dimensional model for the hexagon-to-roll transition in evaporating liquid with a shear flow V. Reutov, G. Rybushkina, and A. Pavlychev ………………………………………………. 93 Numerical investigation of turbulence in the internal wave breaking region S. N. Yakovenko, T. G. Thomas and I. P. Castro …………………………………………... 97 Momentum exchange as common physical background of a transparent and physically coherent description of transport phenomena M. Krol ……………………………………………………………………………………... 101 vii

2. Turbulence Structures, Heat and Mass Transfer 105 Dynamics of large-scale structures and heat transfer in turbulent mixed convection A. Westhoff, D. Schmeling, J. Bosbach and C. Wagner ……………………………………. 107 Three-dimensional structures of non-isothermal jet K. Matsubara, H. Suto, T. Miura and A. Sakurai ………………………………………….. 111 Large-scale organization in turbulent pipe flow S. Große and J. Westerweel ………………………………………………………………... 115 Inertial range similarity for velocity and scalar spectra in a turbulent channel flow R. A. Antonia and H. Abe …………………………………………………………………... 119 Effects of very-large scale structures in a high-Reynolds turbulent channel flow on medium-high Prandtl number heat transfer Y. Yamamoto, T. Kunugi and Y. Tsuji ……………………………………….…….……….. 123 DNS investigation of heat transfer structures of turbulent boundary layer over forward-facing step H. Hattori, N. Miyamoto and Y. Nagano ……………………………………….…….……. 127 Relation between an overshoot phenomenon and a vortex ring observed in a step-like wind speed variation generated by a wind tunnel Y. Hara, T. Kuroda and T. Hayashi ………………………………………………………... 131 Mass segregation by vorticity in 2D turbulence L. Joly and N. Reinaud ……………………………...……………………………………… 135 Normal and cross-flow Reynolds stresses: differences between confined and semi- confined flows M. H. Buschmann, T. Kempe, Th. Indinger and M. Gad-el-Hak …………………………... 139 Thermal disturbances induced by mechanical vibrations E. V. Bogdanova-Ryzhova and O. S. Ryzhov ………………………………………………. 143 Experiments and large-eddy simulations of acoustically forced bluff-body flows S. Ayache, J. Dawson, A. Triantafyllidis, R. Balachandran and E. Mastorakos …………... 147 Kinetic energy budgets at the edge of a turbulent jet R.M. R. Taveira, C.B. da Silva and J. C. F. Pereira ……………………………………….. 151 Numerical investigation of spectrums of turbulent convection I. B. Palymskiy ……………………………………………………………………………... 155 Influence of helicity on anomalous scaling of a passive scalar advected by the Navier- Stokes velocity field E. Jur č išinová, M. Jur č išin and R. Remecký ……………………………………………….. 159 LES near the turbulent/nonturbulent interface in jets C. B. da Silva ……………………………………………………………………………….. 163 Numerical investigation of red energy cascade in two-dimensional convection I. B. Palymskiy ……………………………………………………………………………... 167 viii