Calculations of rotational flows using stream functionThe stream function equation is solved for steady two-dimensional (and axisymmetric) rotational flows. Both finite differences and finite volumes discretization techniques are studied, using generalized body fitted coordinates and unstructured staggered grids, respectively. For inviscid transonic flows, a new artificial viscosity scheme which does not produce any artificial vorticity is introduced, for the stability of the mixed flow calculations and for capturing shocks. The solution of Euler equations, in primitive variables, are also considered. The effects of the artificial viscosity and numerical boundary conditions on the total enthalpy and the vorticity distributions are demonstrated.
Document ID
19890041045
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hafez, M. (California Univ. Davis, CA, United States)
Yam, C. (California Univ. Davis, CA, United States)
Tang, K. (California Univ. Davis, CA, United States)
Dwyer, H. (California, University Davis, United States)