Elmer Discussion Forum

And second doubt...

If I am working with an axisymmetric model and I have to define this F2=-461N.

a) Force 2 = $ -461/ProjectedBoundaryArea in direction 2)/(2*pi)
b) Force 2 = $ -461/(ProjectedBoundaryArea in direction 2)

Tack tack

Hej, If I understood is properly: - Force i (Pascals) - Normal Force (Pascals) How to define a load in Newtons in Elmer?? I need to do as follows? - Force/BoundaryArea in the Force BC blank? Ex. Need to apply -461N on the direction 2 to a wall (boundary) located on a 100 bar pressurized chamber: For...

Thanks Peter, It works. Just one tiny detail: It only generates a single *.dat.names file for both Solvers. For my particular case it is not a problem since I am interested on the same variables for both boundaries. However, it could be tricky if not. Working Solution Solver 3 Exec Solver = After ti...

Hi, Really simple: I cannot save two lines in indepenent text files. I want the same data from 2 different boundaries in separate files. SOLVER Solver 3 Exec Solver = After timestep Equation = SaveLine Procedure = "SaveData" "SaveLine" Variable 1 = Coordinate 1 Variable 2 = Coord...

Hej, When defining Heat Transfer BC on a 2D axisymmetric model: 1. Which is the difference between Heat Flux and Temperature Load? - Maybe Heat Flux [W/m] and Temperature Load [W] ? 2. My model is axisymmetric. If I estimated that, in reality, the heat generation due to friction on a surface is 500W...

Hej gents! I am checking how ElmerSolver deals with pressure waves along a porous media. In other words, I want to see the pressure wave being delayed after going through a porous material. (Darcy's law!) I create a 2D transient rectangular model divided in 3 bodies. All the bodies are "air&quo...

Hej, Indeed Peter, it works much better with the new update. (attach an snap) To make things even more complicated I introduced a felt material in the cavity and compare results: Material 2 Name = Helium - Felt Ring [... Helium Proprieties...] Porous media = True Porous Resistance = Real 1e-6 End 1)...

Hej,

I attach a short movie (9999 steps) showing the model working with a Particle Dynamics module. I am pretty impressed.

/Xavi

Hej Peter! Thanks! So I will wait till the next update to run simulations over 9999 ;) I am totally stuck with the initial particles position issue. I am defining a box taking the whole geometry however the particles are only generated on a specific area not the whole geometry. It is curious that if...

Hej, I am also working with the Particle Dynamics Solver . * 2 issues: 1- Initialize the particles: I could not find out how to place particles at the begninning of the simulation. I am using a "random box" an when I set up the limits min/max min/max, I cannot generate particles where I wa...