nekRS
20.1
Quickstart
Build Instructions
Setting the Environment
Run the Code
Documentation
Discussion Group
Contributing
Reporting Bugs
License
Citing
Acknowledgment
User guide
Introduction
Solving in Dimensional vs Non-Dimensional Form
Adapting to nekRS
Constant Properties
Variable Properties
Compute Backend Abstraction (OCCA)
Data Structures
Platform
Mesh
Flow Solution Fields and Simulation Settings
Passive Scalar Solution Fields and Simulation Settings
Installing
Requirements
Acquiring the code
Set NEKRS_HOME
Cmake compilation
CMake flags
Building the Nek5000 Tool Scripts
Meshing
Using Nek5000 Meshing Tools
genbox
reatore2
Using
gmsh2nek
Using
exo2nek
Conjugate Heat Transfer
TET-TO-HEX
Sidesets and applying boundary conditions
Mesh-related data structures
Mesh modification in NekRS
Miscellaneous Tips
Boundary conditions
Available Types
User Defined Value/Gradient
Internal / Periodic
Turbulent Inflow
Velocity Recycling
Initial conditions
Restart
Models and Source Terms
Turbulence models
Large Eddy Simulation (LES)
RANS models
Low-Mach Compressible Model
Custom Source Terms
Momentum Equation
Scalar Equations
Physical properties
Constant
Variable
Postprocessing
Checkpointing & Visualization
Compute Derived Quantity
Adding Custom Checkpoint Fields
Adding Custom Output File
Run time averaging
Case files
Parameter File (.par)
Mesh File (.re2)
User-Defined Host File (.udf)
OKL block
UDF_Setup0
UDF_Setup
UDF_ExecuteStep
Trigger Files (.upd)
Running
Native Running
MPI launch scripts
Queueing system
Debugging Tips
Just-in-time Compilation
Tutorials
Fully Developed Laminar Flow
Before You Begin
Mesh Generation
Control parameters
User-Defined Host Functions File (.udf)
Loading parameters
Boundary and initial conditions
Running the case
Post-processing the results
Periodic Hill
Before You Begin
Mesh generation
User Defined Functions file (.udf)
Modify mesh
Initial & boundary conditions
Control parameters
Compilation and running
Post-processing the results
Conjugate Heat Transfer
Overlapping Overset Grids
RANS Channel
Before You Begin
Mesh and Boundary Conditions
Control Parameters (.par file)
User Routines (.usr file)
SIZE file
Compilation
Results
Multi-Component RANS
Developer guide
Doxygen
Contributing
nekRS Documentation
How to build locally
Dependencies
Building
How to contribute
Theory
Incompressible Flow
Non-Dimensional Navier-Stokes
Stokes Flow
Energy Equation
Non-Dimensional Energy / Passive Scalar Equation
Low-Mach Compressible Flow
Low-Mach Equations with Ideal Gas Assumption
RANS Models
Other Resources
Glossary
References
nekRS
Tutorials
Overlapping Overset Grids
View page source
Overlapping Overset Grids