Under the elicitation of Professor Denton's effective research of turbomachinery CFD (Cambridge University of the United Kingdom),a new multiple grid scheme is put forward in combination with explicit time marching method,finite volume difference code and distributed body force (by Professor Denton) to calculate the internal flow field of H.Krain centrifugal impeller.The results show that the multi grid scheme greatly improves the converging speed and that the calculation results are consistent with the me...
【分类号】
TH452
【正文快照】
1 引 言 Ni R H[1]在 1 982年提出的求解二维欧拉方程的多重网格法是首次将多重网格法与时间推进法相结合而成功的范例。本人受英国剑桥大学Denton教授的启发 [2 - 4] ,本文按照有限体积差分的基本思想将 Ni R H的差分格式改编成了时间方向一阶精度、空间方向二阶精度的有
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