I have some problems using ElmerSolver to solve Navier Stokes equations. My geometry is generated with GMSH. I work on Windows, and when trying to run ElmerSolver to solve my SIF file, I have a box that says ElmerSolver.exe stopped working... Could someone tell me where is my mistake?
Here are my geometry and sif files :
Geometry file in GMSH
Code: Select all
lc = 0.0005;
L = 0.04;
H = 0.02;
Point(1) = {H, 0, 0, lc};
Point(2) = {L, 0, 0, lc};
Point(3) = {L, L, 0, lc};
Point(4) = {0, L, 0, lc};
Point(5) = {0, H, 0, lc};
Point(6) = {H, H, 0, lc};
Line(1) = {1, 2};
Line(2) = {2, 3};
Line(3) = {3, 4};
Line(4) = {4, 5};
Line(5) = {5, 6};
Line(6) = {6, 1};
Line Loop(7) = {1, 2, 3, 4, 5, 6};
Plane Surface(8) = {7};
Physical Line(1) = {1};
Physical Line(2) = {2};
Physical Line(3) = {3};
Physical Line(4) = {4};
Physical Line(5) = {5};
Physical Line(6) = {6};
Physical Surface(1) = {8};SIF File for ElmerSolver
Code: Select all
Check Keywords Warn
Header
Mesh DB "." "mesh"
Include Path ""
Results Directory ""
End
Simulation
Coordinate System = Cartesian
Simulation Type = Transient
Timestep sizes = 0.01
Timestep Intervals = 10!nb of times that the time step is repeted
Timestepping Method = BDF
BDF Order = 1
Output Intervals = 1
Solver Input File = "arrondi.sif"
End
Constants
Stefan Boltzmann = 5.67e-8
Permittivity Of Vacuum = 1.0
Gravity(4) = 0 -1 0 9.81
End
Body 1
Name = "Body1"
Equation = 1
Material = 1
Initial Condition = 1
End
Material 1
Density = Real 1.2
Viscosity = Real 19e-6
End
Solver 1
Equation = Navier-Stokes
Procedure = "FlowSolve" "FlowSolver"
Variable = Flow Solution[Velocity:2 Pressure:1]
Exec Solver = Always
Stabilize = True
Bubbles = False
Lumped Mass Matrix = False
Optimize Bandwidth = True
Steady State Convergence Tolerance = 1.0e-5
Nonlinear System Convergence Tolerance = 1.0e-8
Nonlinear System Max Iterations = 1
Nonlinear System Newton After Iterations = 3
Nonlinear System Newton After Tolerance = 1.0e-3
Nonlinear System Relaxation Factor = 1
Linear System Solver = Iterative
Linear System Iterative Method = BiCGStab
Linear System Max Iterations = 500
Linear System Convergence Tolerance = 1.0e-8
Linear System Preconditioning = ILU1
Linear System ILUT Tolerance = 1.0e-3
Linear System Abort Not Converged = False
Linear System Residual Output = 20
Linear System Precondition Recompute = 1
Optimize bandwidth = False
End
Solver 2
Equation = String "ResultOutput"
Procedure = File "ResultOutputSolve" "ResultOutputSolver"
Output File Name = String "kinetic"
Output Format = String "vtu"
End
Equation 1
Navier-Stokes = TRUE
Active Solvers(2) = 1 2
End
Initial Condition 1
Velocity 1 = Real 0
Velocity 2 = Real 0
End
Boundary Condition 1
Name = "INLET"
Target Boundaries = 5
!Velocity 1 = Variable Coordinate 2
! MATC "0.3*(tx-0.03)*(1-(tx-0.03))"
Velocity 1 = 0.3
Velocity 2 = 0
End
Boundary Condition 2
Name = "No-slip"
Target Boundaries(6) = 2 3 4 6 7 8
Velocity 1 = 0
Velocity 2 = 0
End
Boundary Condition 3
Name = "OUTLET"
Target Boundaries = 1
Velocity 2 = 0
Pressure = 0
End
. Everything works fine now.