Steger-Warming flux vector splitting.
F^{±} = rho/(2*gamma) * A^{±}, where A^{±}₁ = 2(γ-1) λ₂± + λ₁± + λ₃± A^{±}₂ = 2(γ-1) u λ₂± + (u-c) λ₁± + (u+c) λ₃± A^{±}₃ = (γ-1) u² λ₂± + (H-uc) λ₁± + (H+uc) λ₃± and λᵢ± = (λᵢ ± |λᵢ|) / 2 are the split eigenvalues. See Steger & Warming (1981), J. Comput. Phys. 40, 263–293.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=wp), | intent(in) | :: | q(:) | |||
| real(kind=wp), | intent(out) | :: | flux(:) | |||
| integer, | intent(in) | :: | sign |
+1 for F^+, -1 for F^- |
||
| real(kind=wp), | intent(in) | :: | gam |
Ratio of specific heats |