Documentation

SimScale DocumentationKnowledge Base

Knowledge Base

1 - CAD Preparation (23)

The Mesher Doesn’t Respect the Mesh Size and Makes the Mesh Coarser

Why Can’t I See My Model in the Workbench?

Can I Restore a Deleted Project?

Why Do Geometry Operations Fail?

How to Import Geometries From Fusion 360?

How to Upload an STL File With Layers?

How To Export A Model With Terrain From Revit?

How to Export a Model From Revit to SimScale?

How To Download A Geometry From SimScale?

How to Find Faults in the CAD Model?

How to Prepare the Fluid Region for Conjugate Heat Transfer Simulations?

How to Export a File as an STL From Rhino?

How To Make A Revit Model Ready For Pedestrian Wind Comfort Analysis Using SimScale?

How to Prepare the CAD for Simulating Rotating Zones?

How Does Pedestrian Wind Comfort Analysis Type Deal With Complex Geometry at the Boundary?

How to Create a Rotating Zone?

How to Extend Terrain With an Example in Rhino?

How to Add Topology or Terrain to a Pedestrian Wind Comfort Analysis?

How to Deal With Geometry Details and Features for Pedestrian Wind Comfort Analysis?

Basic Geometry Requirements for Pedestrian Wind Comfort

How To Choose the Seed Face Properly?

How Can I Upload an Assembly to SimScale?

How to Simplify a Revit Model for CFD?

2 - Mesh (6)

The Mesher Doesn’t Respect the Mesh Size and Makes the Mesh Coarser

How to Visualize the Mesh in a PWC Analysis?

How to Check and Improve Mesh Quality?

How to Tell When and Where the Simulation Starts Diverging?

How to Visualize the Internal Mesh Using Mesh Clip?

How To Define Dimensions of Refinements During Meshing?

3 - Fluid Analysis (49)

Why Does the Workbench Get Slow?

What Are Core Hours?

Extending the Inlets and Outlets for a CFD Simulation

How do I Model a Fan Curve in SimScale?

How Do I Set Up a Successful CHT Simulation?

Can I Continue an Existing Simulation Run in SimScale?

How to Model Wall Roughness in CFD?

Why Are My Lift And Drag Coefficients Too Big/Small?

How to Control Simulation Time and Timestep in LBM Analysis?

How To Assess a Pressure Drop in the Post-Processor?

How to Set up a Transient Convective Heat Transfer Simulation?

How to Model the Ground Roughness in Incompressible Analysis?

How to Set up an Atmospheric Boundary Layer in CFD Simulations?

Selection via the Viewer (Tips & Tricks)

How Does Surface Roughness Affect PWC Results?

How to Set Anisotropic Thermal Properties?

How to Control Simulation Time and Timestep in PWC Analysis?

How to Tell When and Where the Simulation Starts Diverging?

How Many Wind Directions Should I Run for a Pedestrian Wind Comfort Analysis?

How To Choose Between Rotating Zone and Rotating Wall?

How to Prepare the Fluid Region for Conjugate Heat Transfer Simulations?

How to Predict Linear and Exponent Coefficients for a Power Law Porous Media?

How Does Pedestrian Wind Comfort Analysis Type Deal With Complex Geometry at the Boundary?

How to Set the Right Thermal Wall Conditions in CHT Without Using Radiation?

What Does (φ) Flux and T1 stand for?

What Happens If a Power Source Partially Intersects with a Domain?

How to Control, Export, and Analyze Y+ During Meshing, Simulation and Post-Processing?

How to Choose Between Wall Resolution and Wall Modelling?

How to Add Topology or Terrain to a Pedestrian Wind Comfort Analysis?

How To Analyze the Pitch, Lift, and Drag Coefficients?

How to Create a Porous Media?

How to Assign Wall and Window Settings for Thermal Comfort Simulations?

What Is a Flow Volume?

How to Predict Darcy and Forchheimer Coefficients for Perforated Plates Using Experimental Data?

How to Predict Darcy and Forchheimer Coefficients for Perforated Plates Using Analytical Approach?

How To Keep the Courant Number Below 1?

How to Use the Porous Media Feature to Define a Perforated Plate?

How To Define Custom Materials In SimScale?

How To Calculate Heat Dissipation In Watts?

What Can Be the Reasons for Unrealistic Velocity Values in the Simulation?

What Happens When You Assign Sources to Multiple Faces/Components?

How to Mesh a Multiphase Flow Analysis Study?

Why do Multiphase Simulations Take so Long?

How Can I Upload a STAT File for a PWC Analysis?

Is It Possible to Add Only One Inlet Flow and One Outlet Flow to a Domain?

What Does Imprint Do?

How To Create Flow Volume Extraction?

How to Define Symmetry Conditions?

Why Do We Need to Inflate Boundary Layers on Walls?

4 - Structural Analysis (19)

Why Does the Workbench Get Slow?

How To Set Up the Time Step for a Dynamic Impact Analysis?

What Are Core Hours?

Can I Download the Deformed Shape in an FEA Simulation?

How to Model Welds in Simulations?

How Do I Calculate Additional Results in FEA (Heat flux, Reaction Force)?

What Is Fictitious Clearance?

How to See Displacements in Structural Simulations?

Why Do Parts Collide in Nonlinear Static Simulations?

Selection via the Viewer (Tips & Tricks)

How to Set a Transient Heat Transfer Simulation?

When Should I Use an Absolute Residual in Structural Analysis?

When Do I Need a Dynamic Analysis?

How To Define Custom Materials In SimScale?

How to Apply Cyclic Symmetry (FEA)?

How to Define Symmetry Conditions?

Which Surface Should I Select as the Master in a Contact Pair?

When Do I Need a Nonlinear Static Analysis?

Which Type of Finite Element Should I use?

5 - Post Processing (9)

How to See Displacements in Structural Simulations?

Why Are My Lift And Drag Coefficients Too Big/Small?

How To Assess a Pressure Drop in the Post-Processor?

How to Generate Particle Traces and Slices in PWC Analysis?

What Are the Scalar Names in the Post-Processor?

How to Plot Vectors on a Plane?

How to Change the Range on the Legend Bar?

What Is the Difference Between Average and Transient Results?

How to Check Convergence of a CFD Simulation?

6 - Event Log Warnings and Errors (38)

Error: Static Load in Nonlinear Analysis Case

Error: MRF Interface Was Assigned Boundary Condition

Error: Mesh Too Coarse for the GAMG Solver

Memory Allocation Error

Error: Incorrect Usage of Empty 2D Boundary Condition

Why a PWC Simulation Fails?

Error: Surface Meshing Self-Intersection

Error: Multi-Region Mesh in Non-CHT Simulation

Error: Unexpected TE for Cell Zone

Error: Unexpected Bounding Box for Internal Mesh

Error: Cell Zones With Multi-Region Mesh

Error: Maximum Run Time Exceeds Computation Limit (PWC)

Error: MUMPS Residual Not Achieved

Error: Insufficient Mesh Resolution for Turbulence Modeling

Error: Conformal Meshing Cannot Be Generated With Overlapping Entities

Error: Invalid Initial and Boundary Conditions for Pressure

Error: No Convergence in Nonlinear Thermal Simulation

Error: Result Control Assigned to Non-Assignable Face

Error: Mesh Too Coarse

Error: Maximum Number of Iterations Exceeded

Error: Shared Slave Nodes

Error: Superfluous Contact Constraint

Error: Newton Convergence Could Not Be Reached

Error: Connection to Server Interrupted or Result Stuck in Loading

Error: Out of Memory

Error: Matrix is Singular / Not Factorizable

Error: Material Point Is Out of Bounds

Error: Material Law Integration

Error: A Keyword is Undefined in Dictionary

Error: Instance Hard Disk Full

Error: Incorrect Patch Definition for Cyclic/Periodic Boundaries

Error: Inconsistent Patch and PatchField Types Found

Error: Floating Point Exception

Error: Fixed Point Convergence

Error: An Error Occurred

Error: Continuity Error Encountered Cannot be Removed

Error: Cell Type 22 not Supported

Error: Time Step Below Threshold