zhulianhua’s gists

zhulianhua / square_cylinder.geo

Created September 19, 2016 08:32

Gmsh script for generating structured mesh for flow past a square cylinder (no complete, just a backup)

zhulianhua / cell2vtk.py

Last active February 2, 2017 20:46

convert a cell centered tecplot block ascii data to a VTK RECTILINEAR_GRID format data

zhulianhua / png2flag.py

Created May 29, 2017 08:52

Convert from PNG image to ASCII flag (0/1) file

	import numpy as np
	import matplotlib.image as mpimg

	def rgb2gray(rgb):
	''' Convert rgb to gray '''
	return np.dot(rgb[...,:3], [0.299, 0.587, 0.114])

	def gray2bin(gray):
	''' Convert gray to binary (0,1)'''
	#return (gray>0.5).astype('uint8')

zhulianhua / of41_user_bashrc.sh

Last active June 12, 2017 13:45

modified OpenFOAM 4.1 etc/bashrc for Archer HPC system

	#LHZHU: Changed based on http://www.archer.ac.uk/documentation/software/openfoam/#4.1 compute
	#DESC: Let user program compile on /work filesystem
	#NOTE: should export CRAYPE_LINK_TYPE=dynamic to compile it, as Archer default use static link
	#-----------------------------------sh---------------------------------------
	# ========= \|
	# \\ / F ield \| OpenFOAM: The Open Source CFD Toolbox
	# \\ / O peration \|
	# \\ / A nd \| Copyright (C) 2011-2016 OpenFOAM Foundation
	# \\/ M anipulation \|
	#------------------------------------------------------------------------------

zhulianhua / DV_NU.py

Created July 3, 2017 19:38

Non-uniform discrete velocity

	# coding: utf-8
	# Generate non-uniform discrete velocity using a power law distribution
	import numpy as np

	def nu_dv(lmx, MX, xiMax):
	"""
	Generate a non-uniform points with a power law distribution

	Parameter
	---------

zhulianhua / job.sh

Last active July 19, 2017 14:38

qsub passing an environment variable via cmd options -v

	#!/bin/bash --login
	#PBS -N test
	#PBS -A e283
	#PBS -l select=1
	#PBS -l walltime=0:20:00
	##PBS -m abe
	#PBS -M [email protected]

	# Switch to current working directory
	export PBS_O_WORKDIR=$(readlink -f $PBS_O_WORKDIR)

zhulianhua / openmpi_HDF5_CGNS.sh

Last active July 28, 2019 15:54

	```bash
	### OpenMPI
	module load compilers/intel/2018_0
	./configure --prefix=/home/appLEIWU/MPI/intel/openmpi/2.1.0 CC=/home/appLEIWU/compiler/intel/compilers_and_libraries_2018.0.128/linux/bin/intel64/icc CXX=/home/appLEIWU/compiler/intel/compilers_and_libraries_2018.0.128/linux/bin/intel64/icpc F77=/home/appLEIWU/compiler/intel/compilers_and_libraries_2018.0.128/linux/bin/intel64/ifort FC=/home/appLEIWU/compiler/intel/compilers_and_libraries_2018.0.128/linux/bin/intel64/ifort
	make -j 28
	sudo make install

	### HDF5
	CC=/home/appLEIWU/MPI/intel/openmpi/2.1.0/bin/mpicc ./configure --enable-parallel --prefix=/home/appLEIWU/tool/HDF5/intel/openmpi/1.8.5-patch1
	make -j 28

zhulianhua / bashrc.sh

Created October 15, 2017 08:15

OpenFOAM on Archer HPC : Let user's solver compile from /work directory

	#Generated by `cat $LHOME/OpenFOAM/OpenFOAM-4.1/etc/bashrc`
	#LHZHU: Changed based on http://www.archer.ac.uk/documentation/software/openfoam/#4.1 compute
	#DESC: Let user program compile on /work filesystem
	#-----------------------------------sh---------------------------------------
	# ========= \|
	# \\ / F ield \| OpenFOAM: The Open Source CFD Toolbox
	# \\ / O peration \|
	# \\ / A nd \| Copyright (C) 2011-2016 OpenFOAM Foundation
	# \\/ M anipulation \|
	#------------------------------------------------------------------------------

zhulianhua / tecplot_zone_with_void

Created November 19, 2017 07:02

	void data2D(int mm_, double* T_, double* qx_,double* qy_,double* xcoord_, double* ycoord_, double* dx_, double* dy_, int NumMeshx_, int NumMeshy_ )
	{
	FILE *fp;
	char fname[1000];
	int m1,i,j;
	int nodes,elements;
	int index[M][N];

	nodes=0;
	elements=0;

zhulianhua / C++11-variadic-template

Created April 18, 2018 09:17

C++11 可变参数模板

	// blog : https://zhulianhua.wordpress.com/2018/04/18/c11-variadic-template/
	#include <iostream>
	using namespace std;
	//递归终止函数
	void print()
	{
	cout << "empty" << endl;
	}

	//展开函数

	#LHZHU: Changed based on http://www.archer.ac.uk/documentation/software/openfoam/#4.1 compute
	#DESC: Let user program compile on /work filesystem
	#NOTE: should export CRAYPE_LINK_TYPE=dynamic to compile it, as Archer default use static link
	#-----------------------------------sh---------------------------------------
	# ========= \|
	# \\ / F ield \| OpenFOAM: The Open Source CFD Toolbox
	# \\ / O peration \|
	# \\ / A nd \| Copyright (C) 2011-2016 OpenFOAM Foundation
	# \\/ M anipulation \|
	#------------------------------------------------------------------------------

	#Generated by `cat $LHOME/OpenFOAM/OpenFOAM-4.1/etc/bashrc`
	#LHZHU: Changed based on http://www.archer.ac.uk/documentation/software/openfoam/#4.1 compute
	#DESC: Let user program compile on /work filesystem
	#-----------------------------------sh---------------------------------------
	# ========= \|
	# \\ / F ield \| OpenFOAM: The Open Source CFD Toolbox
	# \\ / O peration \|
	# \\ / A nd \| Copyright (C) 2011-2016 OpenFOAM Foundation
	# \\/ M anipulation \|
	#------------------------------------------------------------------------------

Lianhua Zhu zhulianhua