4 votes
Accepted

Why do we use modified pressure in incompressible multiphase solvers with gravity?

It has been a long time since I was involved in the details of developing CFD codes, but here goes: Writing general purpose CFD solvers is pretty difficult because the range of problems that the code ...
Christopher Thompson's user avatar
2 votes
Accepted

How to handle non bilinear weak form?

From your formulation it's still unclear what are the boundary conditions. But from the sentence about replacing $n\cdot \nabla u$ with $h(T_{\infty} - u)$ and your comment it sounds like your ...
lightxbulb's user avatar
  • 2,112
2 votes

How to handle non bilinear weak form?

You can move the term with $h T_\infty v$ to the right hand side so it becomes part of the linear form and the load vector.
knl's user avatar
  • 2,096
2 votes
Accepted

How to calculate the force of solid applied by fluid? Using finite difference method, DNS, staggered grid, SIMPLE algorithm, immersive boundary

The question is solved. I use wrong coefficient formula. I should use 2d formula but actually I use 3d. And my calculation method using momentum conversation may be wrong, but that is fine, I can use ...
CheapMeow's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible