Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=47028#.VGLy92fHRK0 Author(s) Claudia Zimmermann , Rodion Groll Affiliation(s) Center of Applied Space Technology and Microgravity, University of Bremen, Bremen, Germany . Center of Applied Space Technology and Microgravity, University of Bremen, Bremen, Germany . ABSTRACT In this paper a numerical study of a turbulent, natural convection problem is performed with a compressible Large-Eddy simulation. In a natural convection the fluid is accelerated by local density differences and a resulting pressure gradient. Directly at the heated walls the temperature distribution is determinate by increasing temperature gradients. In the centr...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50972#.VFG4JlfHRK0 Author(s) Claudia Zimmermann , Rodion Groll Affiliation(s) Center of Applied Space Technology and Microgravity, University of Bremen, Bremen, Germany . ABSTRACT In this paper the influence of an impressed Coriolis force field on the configuration of a turbulent Rayleigh-Bénard convection problem is investigated in an experimental and numerical study. The main purpose of both studies lie on the analysis of a possible stabilising effect of a Coriolis acceleration on the turbulent unsteady structures inside the fluid. The relative Coriolis acceleration which is caused in the atmosphere by the earth rotation is re...