periodicHill

Periodic Hill problem

Overview

This directory contains the files and data for running the periodic hill turbulence problem. This case is based on same case run using SST and SST-DES from Marc Henry de Frahan -- see his repo periodicHill.

Additional details on the periodic hill problem are provided via the ERCOFTAC UFR 3-30 Test Case problem on the ERCOFTAC database.

Basic settings

Parameter	Value
Reynolds number	10600 based on hill height
Hill height	1 m
Fluid density	1 kg/m^3
Fluid velocity	1 m/s
Fluid viscosity	10600

Requirements to run

Submodule Be sure to initialize the submodule before comparing against reference data:

git submodule update --init --recursive

Mesh generation
Meshes for this case are generated using Pointwise glyph scripts.

Nalu-Wind
The periodic hill cases should be run in Nalu-Wind using the either:

• the master branch for sst and sst-des runs
• the my_iddes_abl branch from Lawrence. This branch merges the iddes capabilities from Ganesh's branch with user-defined boxes of momentum body forcing from master.

Postprocessing

Typical post-processing workflow:

module load sierra
epu -processor_count 256 periodicHill
python pp.py -m sst/results/periodicHill.e
python pp_inlet.py -m sst/results/periodicHill.e
python plotter.py -f sst/results/