Elmer Discussion Forum

Hi I tried many adjustments, among them your suggestions (relaxation and etc. ) but nothing led to the convergence of the solution! :cry: :cry: :cry: It's a cantilever beam parallel to the fluid flow. When I change the beam young modulus from 1e20 to 3e7, the beam end deflection changes from -1e-17 ...

Dear Elmer I’m working on a simple steady-state FSI benchmark. I’ve checked both the fluid and solid (beam) parts separately and both of them seems to give correct answers in single runs. But when I run the coupled FSI problem the output seems logical after the first steady-state iteration but there...

Dear Elmer group Are fluid-structure interaction (FSI) problems solved with a loosely coupled or strongly coupled iteration strategy in Elmer (the tutorial Fluid flow around an elastic beam for example)? If the answer is loosely coupled iteration strategy, is there any way to change it to strongly c...

Hello Elmer
What is the difference between SUM( LoadVector(i,1:n)*Basis(1:n) ) and SUM( LoadVector(i,1:n)*Basis )?
Regards, Hamed

Dear Elmer
Is there any capability for mesh smoothing in Elmer or not? And if not do you know any source code for mesh smoothing anywhere else?
And furthermore, What is meant by the phrase 'on-the-fly' (e.g. loads that are created on-the-fly)?
Regards, Hamed

Thanks for your kind answer Juha. Would you please tell me what the jobs of subroutine ‘FreeMatrix’ and keyword ‘initialize’ are?

Dear Elmer Suppose we are solving a problem that have the following input information: Solver 1 Equation = Navier-Stokes End Solver 2 Equation = Elasticity Solver End Solver 3 Equation = Mesh Update End Equation 1 Active Solvers(2) = 1 3 End Equation 2 Active Solvers = 2 End What would be the output...

So what is the difference between functions 'FlowBoundaryResidual' and 'FlowEdgeResidual' ? These functions alongside 'FlowInsideResidual' constitute the main part of 'FlowSolver' module.

Thanks,

Dear Elmer group I wanted to ask about the algorithm used in Elmer 'FlowSolver' module for solving incompressible stabilized Navier-Stokes equation. Is it for example a kind of FRONTAL solver or anything else? Regards, Hamed "I just omitted a sentence, no need for answer"

Hi everybody
How can one delete one's Elmer account?
Regards,