文件
tem3dfdtd-open/tem3dfdtd/lib/sin-source.f90
2023-12-19 10:49:54 +08:00

31 行
799 B
Fortran

!Copyright (c) 2013 by tdem.org under guide of Xiu Li(lixiu@chd.edu.cn)
!written by Huaifeng Sun(sunhuaifeng@gmail.com) and Xushan Lu(luxushan@gmail.com)
!Code distribution @ tdem.org or sunhuaifeng.com
SUBROUTINE SIN_SOURCE
USE CONSTANTPARAMETERS
USE TIME_PARAMETER
USE OMP_LIB
IMPLICIT NONE
integer i,j,k
DELT=1.0D-7
CTIME(1)=0.0D0
SOURCE(1)=0.0D0
DO I=2,NSTOP
CTIME(I)=CTIME(I-1)+DELT(I-1)
IF(CTIME(I) .LT. WAVE)THEN
SOURCE(I)=AMP*SIN(PI*CTIME(I)/WAVE)
ELSE
SOURCE(I)=0.0D0
ENDIF
ENDDO
OPEN(9,FILE='CTIME_SIN_SOURCE.DAT',STATUS='UNKNOWN')
DO I=1,NSTOP
WRITE(9,'(3E24.16)')CTIME(I),DELT(I),SOURCE(I)
ENDDO
CLOSE(9)
WRITE(10005,*)'半正弦发射波形时间序列已经写入文件CTIME_SIN_SOURCE.DAT'
RETURN
ENDSUBROUTINE SIN_SOURCE