8.1. Preprocessing

• 8.1.1. Meshing Recommendations
  • 8.1.1.1. Introduction
  • 8.1.1.2. Surface Mesh
    • 8.1.1.2.1. Element Sizing
    • 8.1.1.2.2. Quality Metrics
  • 8.1.1.3. Volume Mesh
    • 8.1.1.3.1. Element Sizing
    • 8.1.1.3.2. Quality Metrics
    • 8.1.1.3.3. y+ Estimation
  • 8.1.1.4. Flow360
  • 8.1.1.5. BET and AD Refinement Regions
  • 8.1.1.6. Modeling a Hub in BET/AD Simulations
  • 8.1.1.7. Automated Meshing Refinement Regions for BET/AD Simulations
• 8.1.2. CGNS Mesh Format and Multizone Interface Connectivity
  • 8.1.2.1. Introduction
  • 8.1.2.2. Multizone Interface Connectivity
    • 8.1.2.2.1. Collaboration with volumeZones
    • 8.1.2.2.2. Interpretations in surfaceOutput
• 8.1.3. STEP Format CAD Import for Automated Meshing
  • 8.1.3.1. Quick Example
  • 8.1.3.2. Common Issues
    • 8.1.3.2.1. Lofting Surfaces
    • 8.1.3.2.2. Boolean Operations
    • 8.1.3.2.3. Solid Body v.s. Sheet Body
• 8.1.4. Nondimensional Inputs
  • 8.1.4.1. Compute Reynolds
  • 8.1.4.2. Compute muRef
  • 8.1.4.3. Define the angle of attack alpha and sideslip angle beta
  • 8.1.4.4. Compute timeStepSize
  • 8.1.4.5. Convert RPM to nondimensional rotating speed omega
  • 8.1.4.6. Compute conjugate heat transfer related properties
  • 8.1.4.7. Compute heatFlux
• 8.1.5. Boundary Conditions
  • 8.1.5.1. Expressions as Inputs
  • 8.1.5.2. Specifying Turbulence Quantities
• 8.1.6. User Defined Expressions
  • 8.1.6.1. Guidance on how to write User Defined Expressions
  • 8.1.6.2. Scalar function and operators
  • 8.1.6.3. Functions that operate on vectors
  • 8.1.6.4. Solver variables
    • 8.1.6.4.1. Variables that are defined on all grid nodes
    • 8.1.6.4.2. Simulation wide variables
    • 8.1.6.4.3. Zone or patch associated variables
• 8.1.7. BET Translators
  • 8.1.7.1. C81 to Flow360 JSON
  • 8.1.7.2. XFOIL to Flow360.json
  • 8.1.7.3. XROTOR to Flow360.json
  • 8.1.7.4. DFDC to Flow360.json
• 8.1.8. SectionalPolars Best Practices.