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LARGE EDDY SIMULATION OF NATURAL CONVECTION BOUNDARY LAYER ON A CYLINDER

Darioush Gohari Barhaghi (Institutionen för tillämpad mekanik, Strömningslära) ; Lars Davidson (Institutionen för tillämpad mekanik, Strömningslära) ; Rolf Karlsson (Institutionen för tillämpad mekanik, Strömningslära)
Engineering Turbulence Modelling and Experiments 6. Procedings of the ERCOFTAC International Symposium on Engineering Turbulence Modelling and Measurements - ETMM6 -Sardinia, Italy, 23–25 May, 2005 p. 287-296. (2005)
[Konferensbidrag, refereegranskat]

Large eddy simulation of natural convection boundary layer along a constant temperature vertical cylinder is studied and the results are compared with the existing experimental data. The highest local Grashof number is Gr_z=5*10^{11}. It is shown that although there are some discrepancies between the results in the region close to the wall, there is qualitative agreement between them. In order to verify the credibility of the simulations, cross correlation of Reynolds stresses is studied and interpreted.

Nyckelord: Large eddy simulation, LES, Natural convection, Free convection, Cylindrical coordinate system, Shell and tube, Boundary layer



Denna post skapades 2006-01-23. Senast ändrad 2013-07-05.
CPL Pubid: 12973

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära (2005-2017)

Ämnesområden

Mekanisk energiteknik
Termisk energiteknik
Strömningsmekanik

Chalmers infrastruktur