Dresden 2009 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 14: Focused Session: 50 years DY: Trends in dynamics and statistical physics

DY 14.1: Hauptvortrag

Mittwoch, 25. März 2009, 09:45–10:15, HÜL 386

Turbulent convective transport - news and challenges — •Siegfried Grossmann — Fachbereich Physik, Philipps-Universität Marburg, Renthof 6, 35032 Marburg

Recent progress in our understanding of turbulent transport is reviewed, especially of heat convection in Rayleigh-Bénard geometry and of azimuthal momentum transport in Taylor-Couette geometry of concentrically rotating cylinders. The respective Nusselt numbers and convection amplitudes (Reynolds numbers) are analysed as functions of the control parameters Rayleigh and Prandtl number or Taylor number and gapwidth. Non-Oberbeck-Boussinesq effects, the flow structure and its dynamics, and the dominating role of the boundary layers are addressed. Finally a brief discussion of the most urging challenges for future research in this field is offered.

Work was done in cooperation with Detlef Lohse, Guenter Ahlers, Bruno Eckhardt, Enrico Calzavarini, Kazuyasu Sugiyama, Francisco Fontenele Araujo, Eric Brown, and Denis Funfschilling.