Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Modeling High Pressure CFD model
Posted Apr 10, 2017, 3:09 p.m. EDT Computational Fluid Dynamics (CFD) Version 5.2 1 Reply
Please login with a confirmed email address before reporting spam
Have anyone tried modeling simple fuild flow in high pressure (say 50 atm)? When I try to simulate simple pipe flow or flow over a flat plate with a initial pressure of 50 atm, it does not converge, it does not even converge for 3 atm pressure! My working fluid is Air.
1 Reply Last Post Apr 10, 2017, 8:25 p.m. EDT
Please login with a confirmed email address before reporting spam
Posted:
8 years ago
Rajib,
Have you checked the physical properties of the fluid at such a high pressure?
Comsol uses some equations to calculate the physical properties such as viscosity, density, ... which are valid within a certain range. They may decrease or increase drastically far away from the upper/lower bands. Try to define your own equations (or assign a reasonable constant value) and see if it converges.
Amin,
Have you checked the physical properties of the fluid at such a high pressure?
Comsol uses some equations to calculate the physical properties such as viscosity, density, ... which are valid within a certain range. They may decrease or increase drastically far away from the upper/lower bands. Try to define your own equations (or assign a reasonable constant value) and see if it converges.
Amin,