Elmer Discussion Forum

In the LevelSetSolver coupled with NavierStokes solver, where do we need to assign the value of surface tension coefficient in the Solver Input File?
thanking you in advance.
yours
annier

In the Chapter of Level-Set Method in Elmer's Model Manual, what are the implications of these quotes: In the current implementation each line segment is given a flag telling on which side of the element the fluid of interest is located. Once the level-set function and the corresponding curvature ha...

If we neeed to write the value of surface tension coefficient and pressure as the boundary conditions at the phi = 0 interface of the curvature, is there something related to sign convention (+ or -) to imply the concave side or convex side?
thanking you in advance
yours
annier

Related to LevelSetSolver coupled with Navier-Stokes Solver When I set Elment Divisions 1 = 1000 Element Divisions 2 = 1000 in the square.grd file, the warning OptimizeBandwidth: Bandwidth optimizatioin rejected, using original ordering. occurs for a simulation. And when it is again set to Elment D...

Dear Peter, thank you very much for your kind reply. The warning occurred for (NS Iter =1) i.e. i guess it occurred directly. when i changed the Navier-Stokes Solver from the direct to the iterative mode, these errors did not appear. instead another type of error appeared. MAIN: SolveEquations: ----...

1. If i try to do the simulation without coordinate scaling (i.e. in length scale of m), the simulation gives a result. when the element divisions in Square.grd are set as : Element Divisions 1 = 500 Element Divisions 2 = 500 2. If i do the try to run the simulation with Element Divisions 1 = 1000 E...

Dear Matthias,
Thank you very much for your kind reply.
yours
annier

About the compressible terms in the fortran 90 codes of the Navier Stokes solver In the NavierStokes.f90 file there are the LOGICAL variables. compressible1 and compressible2 do they really imply in x and y direction? in the NavierStokesCylindrical.f90 i only see LOGICAL compressible Apart from thi...

If we need to use the Perfect Gas in the Compressibility Model of Compressible Navier-Stokes Solver, does the Reference Pressure mean the initial pressure? can it vary with radius such as P = Patm + sigma/radius where sigma is the surface tension coeeficient? What setting shoud we use in the Materia...

In Linux Operating System In order to convert a .grd file into Mesh files (mesh.boundary, mesh.elements, mesh.header and mesh.nodes), we need to move into the directory containing the .grd file and type the following command in terminal ElmerGrid 1 2 abcdwxyz where abcdwxyz is the name part of abcd...