HELP: Which model should I take?
Hi everyone, I have been trying to simulate a system where an elastic membrane undergo different deformation with the change of pressure in the cavity. There is a cylindrical cavity and the outlet is...
View ArticleRe: HELP: Which model should I take?
Dear Jianguo, The Structural Mechanics “Module” as it has the FSI interface and also Membrane and Shell elements. The basic package has laminar CFD but if you want more advanced fluid flow capabilities...
View ArticleRe: HELP: Which model should I take?
If the pressure change is slow relative to the lowest eigenfrequency of the membrane than you can do a steady state analysis and leave out the modelling of the cavity. Just take a 2d membrane and apply...
View ArticleRe: HELP: Which model should I take?
Thank you ,Pieter Westerik, I have already tried this model. However, there are some problems. In reality, you know, the direction of pressure is always along the normal direction of membrane surface...
View ArticleRe: HELP: Which model should I take?
I believe you can also specify a pressure instead of a force distribution. But if the deflections are very small compared to the membrane diameter this will not make a big difference. If the...
View ArticleRe: HELP: Which model should I take?
If you enable nonlinear geometry the pressure should stay normal to the deformed membrane surface. It will also change magnitude (and not just direction) if the membrane is significantly stretched. So...
View ArticleRe: HELP: Which model should I take?
Hi, Pieter Westerik, You are right. As you said, the deflections are large, and the differences are not neglectful. The material of membrane is also non-linear. This is my further work. So only...
View ArticleRe: HELP: Which model should I take?
Hi, Nagi Elabbasi, I have tried FSI model. But there is a problem bothering me. I apply the "Inlet". If the pressure is very small (just 0.009 psi), it will have a result. But if the pressure is a...
View ArticleHELP: Which model should I take?
Hi everyone, I have been trying to simulate a system where an elastic membrane undergo different deformation with the change of pressure in the cavity. There is a cylindrical cavity and the outlet is...
View ArticleRe: HELP: Which model should I take?
Dear Jianguo, The Structural Mechanics “Module” as it has the FSI interface and also Membrane and Shell elements. The basic package has laminar CFD but if you want more advanced fluid flow capabilities...
View ArticleRe: HELP: Which model should I take?
If the pressure change is slow relative to the lowest eigenfrequency of the membrane than you can do a steady state analysis and leave out the modelling of the cavity. Just take a 2d membrane and apply...
View ArticleRe: HELP: Which model should I take?
Thank you ,Pieter Westerik, I have already tried this model. However, there are some problems. In reality, you know, the direction of pressure is always along the normal direction of membrane surface...
View ArticleRe: HELP: Which model should I take?
I believe you can also specify a pressure instead of a force distribution. But if the deflections are very small compared to the membrane diameter this will not make a big difference. If the...
View ArticleRe: HELP: Which model should I take?
If you enable nonlinear geometry the pressure should stay normal to the deformed membrane surface. It will also change magnitude (and not just direction) if the membrane is significantly stretched. So...
View ArticleRe: HELP: Which model should I take?
Hi, Pieter Westerik, You are right. As you said, the deflections are large, and the differences are not neglectful. The material of membrane is also non-linear. This is my further work. So only...
View ArticleRe: HELP: Which model should I take?
Hi, Nagi Elabbasi, I have tried FSI model. But there is a problem bothering me. I apply the "Inlet". If the pressure is very small (just 0.009 psi), it will have a result. But if the pressure is a...
View ArticleHELP: Which model should I take?
Hi everyone, I have been trying to simulate a system where an elastic membrane undergo different deformation with the change of pressure in the cavity. There is a cylindrical cavity and the outlet is...
View ArticleRe: HELP: Which model should I take?
Dear Jianguo, The Structural Mechanics “Module” as it has the FSI interface and also Membrane and Shell elements. The basic package has laminar CFD but if you want more advanced fluid flow capabilities...
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