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Solution to the heat equation in a pump casing model using the finite elment modelling software Elmer . The mesh is intentionally quite coarse for presentation purposes. The equation solved is given by the following elmer input file. Geometery is distributed with elmer as pump_carter_sup.stp
Header
CHECK KEYWORDS Warn
Mesh DB "." "."
Include Path ""
Results Directory ""
End
Simulation
Max Output Level = 4
Coordinate System = Cartesian
Coordinate Mapping ( 3 ) = 2 4 6
Simulation Type = Steady state
Steady State Max Iterations = 1
Output Intervals = 1
Timestepping Method = BDF
BDF Order = 1
Solver Input File = case . sif
Post File = case . ep
End
Constants
Gravity ( 4 ) = 0 - 1 0 9.82
Stefan Boltzmann = 5.67e-08
Permittivity of Vacuum = 8.8542e-12
Boltzmann Constant = 1.3807e-23
Unit Charge = 1.502e-19
End
Body 1
Target Bodies ( 1 ) = 1
Name = "Body Property 1"
Equation = 1
Material = 1
Body Force = 6
End
Solver 1
Equation = Heat Equation
Variable = - dofs 1 Temperature
Procedure = "HeatSolve" "HeatSolver"
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 = 20
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 = ILU0
Linear System ILUT Tolerance = 1.0e-3
Linear System Abort Not Converged = False
Linear System Residual Output = 1
Linear System Precondition Recompute = 1
End
Equation 1
Name = "Equation 1"
Active Solvers ( 1 ) = 1
End
Material 1
Name = "Steel (alloy - generic)"
Poisson ratio = 0.285
Heat expansion Coefficient = 1 2.0e-6
Youngs modulus = 20 0.0e9
Heat Conductivity = 3 7.2
Sound speed = 510 0.0
Heat Capacity = 97 6.0
Mesh Poisson ratio = 0.285
Density = 785 0.0
Poisson ratio = 0.287
Youngs modulus = 20 0.0e9
End
Body Force 1
Name = "BodyForce 1"
Heat Source = 0.05
End
Boundary Condition 1
Target Boundaries ( 1 ) = 57
Name = "BoundaryCondition 1"
Temperature = 293
End
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oʻzbekcha / ўзбекча Add a one-line explanation of what this file represents
fransuzcha Visualisation of heat transfer in a pump casing
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joriy 18:39, 2-Iyun 2010 1 200 × 939 (536 KB) User A1 Crop white border
18:20, 2-Iyun 2010 1 674 × 941 (556 KB) User A1 Solution to the heat equation in a pump casing model using the finite elment modelling software Elmer .
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