mod_tool Module

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Variables

Type	Visibility	Attributes		Name		Initial
integer,	public,	parameter	::	fp	=	8
real(kind=fp),	public,	parameter	::	eps	=	epsilon(1.0_fp)	极小值

Subroutines

public subroutine cal_cfl_time_step(dx, kx, dt, dt_, nt)

计算满足 CFL(Courant–Friedrichs–Lewy) 条件的时间积分步长

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=fp),	intent(in)			::	dx(:)	网格分辨率: m
real(kind=fp),	intent(in)			::	kx(:)	扩散系数: m2/s
real(kind=fp),	intent(in)			::	dt	全局迭代步长: s
real(kind=fp),	intent(out)			::	dt_	局部迭代步长: s
integer,	intent(out)			::	nt	迭代多少次