Pressure Jumped 21% in a Problem Where Nothing Should Happen — The Abgrall Criterion and the Nonconservative Term
·9 min read
Uniform pressure and velocity stop staying uniform because of the nonconservative term, not the flux. I remeasured Re-Abgrall's H_u operator on one grid.
[Paper Review] Prying Advection and Pressure Fully Apart — TV Flux Splitting for Baer–Nunziato
·10 min read
Split a Baer–Nunziato flux and sound speed stays in the pressure system. Toro Test 4 beat Rusanov by 1.5×; Noh then sent pressure to −0.12.
Giving Each Phase Its Own Equations — The Baer–Nunziato Seven-Equation Model
·6 min read
The printed 324 bar is the 1.2 percent left after two huge stiffened-gas terms cancel. The first relaxation step is what pushes that leftover.