mmrezaie/nekexamples

Examples for Nek5000

NekExamples

This repository contains number of examples illustrating different features of Nek5000 CFD solver. All examples are stored in separate sub-directories containing case description (README.md) and all the files necessary to run the simulation.

Example overview

Some examples provide additional pdf files for a more complete description.

• annulus_2d
  • Test name : Annulus2d
  • Purpose : Natural convection between the two concentric cylinders with Boussinesq approximation.
  • Features :
    • Customized acceleration term (userf)
• benard
  • Test name : Benard_Ray9
  • Purpose : Rayleigh-Benard convection.
  • Features :
    • Customized acceleration term (userf)
• blasius
  • Test name : Blasius
  • Purpose : Blasius boundary layer test case in 2D.
  • Features :
    • "ON " boundary condition (Outflow, Normal only)
• CMT/inv_vort
  • Test name : CmtInviscidVortex
  • Purpose : Steady isentropic vortex
  • Features :
    • CMT solver
• CMT/sod3
  • Test name : CmtSod3
  • Purpose : Sod shock tube in 2D
  • Features :
    • CMT solver
• cone/cone016, cone/cone064, cone/cone256
  • Test name : Cone16, Cone64, Cone256
  • Purpose : Convecting cone problem
  • Features :
• conj_ht
  • Test name : ConjHt
  • Purpose : 2D Poiseiulle flow moving between two heated finite thickness plates
  • Features :
    • Conjugate heat transfer
    • Scalar solve with CVODE
• cyl_restart
  • Test name : CylRestart_C, CylRestart_P
  • Purpose : Performing a full restart
  • Features :
• eddy_neknek
  • Test name : Eddy_Neknek
  • Purpose : Eddy solutions in doubly-periodic domain with two overlaping domains
  • Features :
• eddy_psi_omega
  • Test name : Eddy_PsiOmega
  • Purpose : Eddy solutions in doubly-periodic domain using the streamfunction-vorticity (psi-omega) formulation
  • Features :
• eddy_rich
  • Test name : Eddy_Rich
  • Purpose : Eddy solutions with moving boundary conditions
  • Features :
• eddy_uv
  • Test name : Eddy_Uv
  • Purpose : Eddy solutions in doubly-periodic domain with an additional translational velocity
  • Features :
• expansion
  • Test name : Expansion
  • Purpose : 3D expanding pipe.
  • Features :
• ext_cyl
  • Test name : ExtCyl
  • Purpose : Flow past a cylinder in 2D.
  • Features :
    • Evaluating surface integral using objects
    • Saving history points
• fs_2
  • Test name : Fs2_St1, Fs2_St2, Fs2_StdWv
  • Purpose : Free-Surface Channel Flow.
  • Features :
• hemi
  • Test name : Hemi
  • Purpose : Particle tracking in flow past a hemispherical roughness.
  • Features :
    • Particle tracking using interpolation tool
• lin_channel2D
  • Test name : LinCav_Adj, LinCav_Dir
  • Purpose : Linear direct and adjoint simulation of 2D differentially heated square cavity
  • Features :
• lin_dfh_cav
  • Test name : LinChn_Adj, LinChn_Dir
  • Purpose : Linear direct and adjoint simulation of 2D Poiseuille flow
  • Features :
• lowMach_test
  • Test name : LowMachTest
  • Purpose : Low-Mach number benchmark problem
  • Features :
    • User specified divergence
    • User specified propteries
• mhd
  • Test name : Mhd_Gpf, Mhd_GpfB, Mhd_GpfM
  • Purpose : Helical Forcing Dynamo
  • Features :
• moffatt
  • Test name : Moffatt, MoffCirc
  • Purpose : Moffatt eddies - Viscous Flow in a Wedge
  • Features :
• mv_cyl
  • Test name : MvCylCvode
  • Purpose : Isentropic compression/expansion in a cylinder
  • Features :
    • User specified mesh motion
    • Varying thermodynamic pressure
• mv_wall
  • Test name : MvWall
  • Purpose : 2D channel with a moving indentation
  • Features :
    • ALE
    • Turbulent outflow boundary condition
• ocyl
  • Test name : Ocyl, Ocyl2
  • Purpose : Oscillating cylinder
  • Features :
    • Linear elasticity solver
    • ALE
• os7000
  • Test name : Os7000
  • Purpose : TS waves in plane Poiseuille flow
  • Features :
• peris
  • Test name : Peris
  • Purpose : Peristaltic flow.
  • Features :
    • Moving mesh with ALE
    • Outflow treatment to prevent backflow
• pipe
  • Test name : Pipe_Helix, Pipe_Stenosis
  • Purpose : Pipe flow
  • Features :
    • Mesh manipluation
    • Mesh extrusion
• rayleigh
  • Test name : Rayleigh_Ray1, Rayleigh_Ray2
  • Purpose : Rayleigh-Benard convection
  • Features :
• robin
  • Test name : Robin
  • Purpose : Unsteady conduction with Robin boundary conditions
  • Features :
• shear4
  • Test name : Shear4_Shear4, Shear4_Thin
  • Purpose : Double shear-layer rollup
  • Features :
    • Filtering
    • Dealiasing
• smoother
  • Test name : Smooth
  • Purpose : Mesh smoothing
  • Features :
• solid
  • Test name : Solid
  • Purpose : Thick-wall hollow sphere under an internal pressure
  • Features :
    • Steady elastic solver
• strat
  • Test name : Strat_P0001, Strat_P1000
  • Purpose : Stratified 2D flow
  • Features :
• taylor
  • Test name : Taylor
  • Purpose : Taylor-Couette flow
  • Features :
• turbChannel
  • Test name : TurbChannel
  • Purpose : LES of a turbulent channel flow
  • Features :
    • AMG coarse grid solver
    • OIFS
    • Variable time step
    • High pass filter relaxation term
    • Computing wall shear stress using objects
    • Planar averaging
• turbInflow
  • Test name : TurbInflow
  • Purpose : Turbulent channel flow with turbulent inflow
  • Features :
    • Recycling boundary condition
    • Turbulent outflow boundary condition
    • Runnig averages computed by avg_all
• vortex
  • Test name : Vortex
  • Purpose : Vortex breakdown in a container with a rotating lid
  • Features :
• vortex2
  • Test name : Vortex2
  • Purpose : Vortex breakdown in a container with a rotating lid (axisymmetric case)
  • Features :