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Showing results 1 to 3 of 3 Search took 0.00 seconds. Search: Posts Made By: FMDenaro

Forum: Main CFD Forum January 7, 2014, 03:44

Replies: 7 Elliptic-parabolic/Hyperbolic-parabolic N.S Equations Views: 2,307 Posted By FMDenaro Well, u+/-a,u are the eigenvalues for the... Well, u+/-a,u are the eigenvalues for the time-dependent Euler system (hyperbolic both in subsonic and supersonic cases), not for NS ... the mathematical character of the NS depends on...

Forum: Main CFD Forum January 4, 2014, 08:16

Replies: 7 Elliptic-parabolic/Hyperbolic-parabolic N.S Equations Views: 2,307 Posted By FMDenaro 1) yes, the continuity equation Div V =0 is... 1) yes, the continuity equation Div V =0 is hyperbolic, it will be then reorganized in the elliptic pressure equation 2) The Prandtl equations are parabolic in the momentum, while the full NS...

Forum: Main CFD Forum January 4, 2014, 06:01

Replies: 7 Elliptic-parabolic/Hyperbolic-parabolic N.S Equations Views: 2,307 Posted By FMDenaro The continuity equation is always hyperbolic... The continuity equation is always hyperbolic (compressible or not flow model), the momentum equation is parabolic for unsteady viscous (compressible or not) flows but becomes hyperbolic for...

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