Publication Date:
2019-06-28
Description:
This report presents multigrid methods for solving the 3-D incompressible viscous rotating flows in a NASA low-speed centrifugal compressor and a marine propeller 4119. Numerical formulations are given in both the rotating reference frame and the absolute frame. Comparisons are made for the accuracy, efficiency, and robustness between the steady-state scheme and the time-accurate scheme for simulating viscous rotating flows for complex internal and external flow applications. Prospects for further increase in efficiency and accuracy of unsteady time-accurate computations are discussed.
Keywords:
Fluid Mechanics and Heat Transfer
Type:
NASA-CR-200791
,
NAS 1.26:200791
,
MSSU-EIRS-ERC-96-1
Format:
application/pdf
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