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Entropy and vorticity corrections for transonic flows
Author(s) -
Hafez M.,
Lovell D.
Publication year - 1988
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650080104
Subject(s) - transonic , inviscid flow , vorticity , euler equations , stream function , computational fluid dynamics , conservative vector field , mathematics , mechanics , airfoil , drag , aerodynamics , physics , vortex , mathematical analysis , compressibility
Abstract Different models for inviscid transonic flows are examined. The common assumptions that the flow is isentropic and irrotational are critically evaluated. Entropy and vorticity correction procedures for potential and stream function formulations are presented, together with the details of the treatment of shocks and wakes, and drag and lift calculations. The non‐uniqueness problem of the potential formulation is studied using different artificial viscosity forms. Numerical results are compared with Euler solutions.