GitHub - wuwuyiyirong5/NS

Branches Tags

Name		Name	Last commit message	Last commit date
Latest commit History 5 Commits
.settings		.settings
Report_zh		Report_zh
picture_collidingFlow		picture_collidingFlow
report		report
.cproject		.cproject
.project		.project
D.d		D.d
ISOP2P1.cpp		ISOP2P1.cpp
ISOP2P1.h		ISOP2P1.h
Makefile		Makefile
R.d		R.d
README		README
boundary_value.cpp		boundary_value.cpp
build_fem_space.cpp		build_fem_space.cpp
build_matrix.cpp		build_matrix.cpp
build_matrix_struct.cpp		build_matrix_struct.cpp
build_mesh.cpp		build_mesh.cpp
colldingflow_result		colldingflow_result
config		config
config.cpp		config.cpp
controler.cpp		controler.cpp
convergence_test_amgPreconditioner		convergence_test_amgPreconditioner
debug.cpp		debug.cpp
flow.d		flow.d
functions.cpp		functions.cpp
functions.h		functions.h
main.cpp		main.cpp
moving.cpp		moving.cpp
new.d		new.d
output_tecplot.cpp		output_tecplot.cpp
preconditioner.cpp		preconditioner.cpp
preconditioner.h		preconditioner.h
record		record
residual		residual
solver.cpp		solver.cpp
step_forward_Euler.cpp		step_forward_Euler.cpp
step_forward_linearized_Euler.cpp		step_forward_linearized_Euler.cpp

Repository files navigation

D.d: 文件用来计算邸老师文章上有精确解的例子.
flow.d: 圆柱饶流网格文件.
convergence_test_amgPreconditioner: 收敛性以及迭代步数测试.

AMG Preconditioner 对于封闭流体效果是很明显的，求解效率很高.
但是对于inflow/outflow问题,或者说是有Neumann边界的时候,求解效率会变的很慢。
目前，AMG Preconditioner 对于均匀网格的算例, 已经可以使用，但对于移动网格,
还需要对BQ^{-1}B^T的预处理矩阵进行改进.