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Indexed by:会议论文

Date of Publication:2015-01-01

Included Journals:Scopus

Abstract:Rotated Riemann solvers have been investigated for the purpose of eliminate the abnormality phenomena in the vicinity of strong shock. It was proved that the rotation procedure will introducing intrinsic dissipation on Riemann solver. However, the dissipation property of rotated schemes haven't been thoroughly investigated. In this work, numerical investigation is made for the rotated Roe scheme. The results show that the presented rotated Roe scheme, which has a predefined rotation angle, is more dissipative than original Roe scheme. Thereinto, carbuncle is eliminated by rotated scheme, even without entropy fixing. Besides, laminar boundary layer simulations show that the boundary-layer-resolving capability of rotated Roe scheme is deteriorated. The results prove that the intrinsic dissipation is introduced by the rotation procedure, and the dissipative level is directly related with the rotation angle. ? Avestia Publishing, 2015.