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Large eddy simulation of the flow around a three-dimensional axisymmetric hill

Sinisa Krajnovic (Institutionen för tillämpad mekanik, Strömningslära)
Proceedings of the 5th International Symposium on Turbulence, Heat and Mass Transfer, Dubrovnik, Croatia, September 25-29, 2006 p. 461-464. (2006)
[Konferensbidrag, refereegranskat]

LES of the flow around a three-dimensional hill is presented. Inlet boundary conditions are made from a DNS results of low Reynolds number channel flow. Two different computational grids are used containing 4 700 000 and 14 600 000 computational nodes. Results of LES are compared with the experimental data and it is found that the agreement varies in the flow. Furthermore it is found that while the refinement of the computational grid improves the agreement with the experimental data in the flow on the lee side of the hill it deteriorates this agreement in measured plane further downstream. Besides, it is shown that the influence of the inlet boundary condition on the results is very week

Nyckelord: three-dimensional hill, LES, large-eddy simulation

Denna post skapades 2007-10-08. Senast ändrad 2014-09-29.
CPL Pubid: 51795


Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära



Chalmers infrastruktur