casfeq / PyEFVLib

This package intends to support the solution of PDEs using the Element-based Finite Volume Method (EbFVM). The input mesh may be *.msh or *.xdmf files, and the output may be *.csv or *.cgns files.

PyEFVLib

This package intends to support the solution of PDEs using the Element-based Finite Volume Method (EbFVM). The input mesh may be *.msh or *.xdmf files, and the output may be *.csv or *.cgns.

Dependencies & Installation

• Python 3 (3.8.2);
• matplotlib (3.3.2);
• meshio (4.0.15);
• numpy (1.17.4);
• pandas(1.1.3);
• petsc4py (3.12.0);
• scipy (1.5.3);
• xmltodict (0.12.0).

Also, for CGNS writing, C++ is used, and two libraries are required: CGNS and Boost.

Usage

from PyEFVLib import MSHReader, Grid, Point
import os, numpy as np

path = os.path.join(*[os.path.dirname(__file__), os.path.pardir, "meshes", "Square.msh"])

reader = MSHReader(path)
grid   = Grid(reader.getData())

totalVolume = 0.0
for element in grid.elements:
	for vertex in element:
		totalVolume += vertex.volume

print(totalVolume)