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SOFTMODULE0.F
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c-----------------------------------------------------------------------------------c
c SUBROUTINE PROGRAM #
C DESINGED BY ChenJun #
C SHANGHAI JIAO TONG UNIVERSITY #
C SHANGHAI, CHINA #
c-----------------------------------------------------------------------------------#
c 子程序功能：
c 1------颗粒接触力和力矩计算，基于遍历碰撞接触搜索算法
c-----------------------------------------------------------------------------------#
Subroutine SOFTMODULE0
Include './Include/OCERM_INF'
c Parameter (ISCHEME = 2, N_SCHEME1 = 0)
Double Precision DIJDEM,PNXDEM,PNYDEM,PNZDEM,PNLDEM
Double Precision UP_IJ,VP_IJ,WP_IJ,UNDEM,PKNDEM,CNDEM,ALFADEM
Double Precision FNXDEM_IJ, FNYDEM_IJ, FNZDEM_IJ, FNDEM_IJ
Double Precision VCTXDEM,VCTYDEM,VCTZDEM,VCTNLDEM
Double Precision DIATAX,DIATAY,DIATAZ,PKTDEM,CTDEM
Double Precision FTXDEM_IJ,FTYDEM_IJ,FTZDEM_IJ,FTDEM_IJ
Double Precision TPXDEM_IJ,TPYDEM_IJ,TPZDEM_IJ,OMDEM
ALFADEM_MAX = 0.0
!$OMP PARALLEL DEFAULT(SHARED) PRIVATE(I,J,K,DIJDEM,PNXDEM,PNYDEM,PNZDEM,
!$OMP& PNLDEM,UP_IJ,VP_IJ,WP_IJ,UNDEM,PKNDEM,CNDEM,ALFADEM,
!$OMP& FNXDEM_IJ, FNYDEM_IJ, FNZDEM_IJ, FNDEM_IJ,
!$OMP& VCTXDEM,VCTYDEM,VCTZDEM,VCTNLDEM,DIATAX,DIATAY,DIATAZ,
!$OMP& PKTDEM,CTDEM,FTXDEM_IJ,FTYDEM_IJ,FTZDEM_IJ,FTDEM_IJ,
!$OMP& TPXDEM_IJ,TPYDEM_IJ,TPZDEM_IJ,OMDEM,DIATATN,N_SYM1,TEMP,
!$OMP& DOMX,DOMY,DOMZ,DOM,TRXDEM_IJ,TRYDEM_IJ,TRZDEM_IJ,
!$OMP& TRX0,TRY0,TRZ0,VOMX,VOMY,VOMZ,VOM)
!$OMP DO
Do I = 1 , I_PARTICLE
IF(NSYM_CONT(I) .EQ. 1)THEN
FNXDEM(I) = 0.
FNYDEM(I) = 0.
FNZDEM(I) = 0.
FTXDEM(I) = 0.
FTYDEM(I) = 0.
FTZDEM(I) = 0.
TPXDEM(I) = 0.
TPYDEM(I) = 0.
TPZDEM(I) = 0.
TPXDEM_IJ = 0.
TPYDEM_IJ = 0.
TPZDEM_IJ = 0.
TRXDEM_IJ = 0.
TRYDEM_IJ = 0.
TRZDEM_IJ = 0.
N_P1(I) = 0
V_PARTICLE(I) = ( 4. / 3. ) * ACOS(-1.0) * RPDEM(I)**3
OMDEM = DMAX1( Sqrt(OMXDEM(I) * OMXDEM(I) +
& OMYDEM(I) * OMYDEM(I) +
& OMZDEM(I) * OMZDEM(I)), acdem)
C---------------------------------------------------------------------------------C
C contact among particles, chenjun, 20191124 c
c---------------------------------------------------------------------------------c
Do J = 1 , I_PARTICLE
If( I .NE. J ) Then
C----- normal contact displacement
ALFADEM = RPDEM(I) + RPDEM(J) - Sqrt(
& ( XPDEM(I) - XPDEM(J) )**2 +
& ( YPDEM(I) - YPDEM(J) )**2 +
& ( ZPDEM(I) - ZPDEM(J) )**2 )
c----- collision judgement
If ( ALFADEM .GT. 0.0 ) Then
C If(ALFADEM .GT. 0.1*2*Min(RPDEM(I),RPDEM(J))) Then
C Print*, 'Error1 in softmodule.f: contact error!'
C print*, 'ALFADEM=',ALFADEM
C print*, '(X,Y,Z)=',XPDEM(I),YPDEM(I),ZPDEM(I)
C !Pause
C Endif
IF(ALFADEM / RPDEM(I) .GT. ALFADEM_MAX)THEN
ALFADEM_MAX = ALFADEM / RPDEM(I)
ENDIF
DIATAX = 0.0
DIATAY = 0.0
DIATAZ = 0.0
N_SYM1 = 0
DO K = 1, N_P2(I)
IF(J .EQ. N_PP2(I,K))THEN
DIATAX = DELTAT_PP1X(I,K)
DIATAY = DELTAT_PP1Y(I,K)
DIATAZ = DELTAT_PP1Z(I,K)
N_SYM1 = 1
ENDIF
ENDDO
N_P1(I) = N_P1(I) + 1
If(N_P1(I) .GT. I_CPN) Then
Print*, 'Error2 in softmodule.f: N_P1(I)'
Pause
Endif
N_PP1(I,N_P1(I)) = J
c----- unit vector from particle i to j
PNXDEM = XPDEM(J) - XPDEM(I)
PNYDEM = YPDEM(J) - YPDEM(I)
PNZDEM = ZPDEM(J) - ZPDEM(I)
PNLDEM = Sqrt( PNXDEM**2 + PNYDEM**2 + PNZDEM**2 )
PNXDEM = PNXDEM / PNLDEM
PNYDEM = PNYDEM / PNLDEM
PNZDEM = PNZDEM / PNLDEM
c------ ralative velocity between particle i and j
UP_IJ = UPDEM(I) - UPDEM(J)
VP_IJ = VPDEM(I) - VPDEM(J)
WP_IJ = WPDEM(I) - WPDEM(J)
c------ UNDEM
UNDEM = UP_IJ * PNXDEM + VP_IJ * PNYDEM +
& WP_IJ * PNZDEM
C----- kn and CNDEM
IF(CONMOD .EQ. 'M1')THEN
PKNDEM = PKN_M1PP
CNDEM = 2.0 * SQRT( PMDEM(I) * PMDEM(J) /
& ( PMDEM(I) + PMDEM(J) ) * PKNDEM ) *
& ABS( LOG(EN_M1PP) ) /
& SQRT( PI_CON**2 + ( LOG(EN_M1PP) )**2 )
ELSEIF(CONMOD .EQ. 'M2')THEN
PKNDEM = 4./3. / ( (1. - PNIUPDEM(I)**2)/EPDEM(I) +
& (1. - PNIUPDEM(J)**2) / EPDEM(J) ) /
& ( ( RPDEM(I) + RPDEM(J) ) /
& ( RPDEM(I) * RPDEM(J) ) )**0.5
CNDEM = 2. * Sqrt( PKNDEM * ( PMDEM(I) * PMDEM(J) /
& ( PMDEM(I) + PMDEM(J) ) ) )
ELSEIF(CONMOD .EQ. 'M3')THEN
PKNDEM = 2. * PI_CON**2 * PMDEM(I) / (20.0*TDEM)**2
CNDEM = 2.0 * 0.3 * Sqrt(PMDEM(I)*PKNDEM)
ENDIF
C----- fn(i,j)
FNDEM_IJ = - PKNDEM * ALFADEM - CNDEM * UNDEM
FNXDEM_IJ = FNDEM_IJ * PNXDEM
FNYDEM_IJ = FNDEM_IJ * PNYDEM
FNZDEM_IJ = FNDEM_IJ * PNZDEM
FNDEM_IJ = ABS( FNDEM_IJ )
C----- VT(i,j)
VCTXDEM = UP_IJ - UNDEM * PNXDEM +
& RPDEM(I) * (OMYDEM(I)*PNZDEM - OMZDEM(I)*PNYDEM) +
& RPDEM(J) * (OMYDEM(J)*PNZDEM - OMZDEM(J)*PNYDEM)
VCTYDEM = VP_IJ - UNDEM * PNYDEM -
& RPDEM(I) * (OMXDEM(I)*PNZDEM - OMZDEM(I)*PNXDEM) -
& RPDEM(J) * (OMXDEM(J)*PNZDEM - OMZDEM(J)*PNXDEM)
VCTZDEM = WP_IJ - UNDEM * PNZDEM +
& RPDEM(I) * (OMXDEM(I)*PNYDEM - OMYDEM(I)*PNXDEM) +
& RPDEM(J) * (OMXDEM(J)*PNYDEM - OMYDEM(J)*PNXDEM)
VCTNLDEM = Sqrt(VCTXDEM**2+VCTYDEM**2+VCTZDEM**2)
C----- DIATAX
IF(N_SYM1 .EQ. 0)THEN
DIATAX = VCTXDEM * DMIN1(
& ALFADEM / Dmax1(UNDEM,acdem), TDEM )
DIATAY = VCTYDEM * DMIN1(
& ALFADEM / Dmax1(UNDEM,acdem), TDEM )
DIATAZ = VCTZDEM * DMIN1(
& ALFADEM / Dmax1(UNDEM,acdem), TDEM )
ELSE
DIATATN = DIATAX * PNXDEM + DIATAY * PNYDEM
& + DIATAZ * PNZDEM
DIATAX = DIATAX - DIATATN * PNXDEM
& + VCTXDEM * TDEM
DIATAY = DIATAY - DIATATN * PNYDEM
& + VCTYDEM * TDEM
DIATAZ = DIATAZ - DIATATN * PNZDEM
& + VCTZDEM * TDEM
ENDIF
C----- kt and CTDEM
IF(CONMOD .EQ. 'M1')THEN
PKTDEM = RK_M1PP * PKNDEM
CTDEM = RC_M1PP * CNDEM
ELSEIF(CONMOD .EQ. 'M2')THEN
PKTDEM = 8. * ALFADEM**0.5 / ( (1. - PNIUPDEM(I)**2) /
& GPDEM(I) + (1. - PNIUPDEM(J)**2) /GPDEM(J) ) /
& ( (RPDEM(I) + RPDEM(J)) / (RPDEM(I) * RPDEM(J)) )**0.5
CTDEM = 2. * Sqrt( ( PKTDEM * PMDEM(I) * PMDEM(J) / (PMDEM(I)
& + PMDEM(J) ) ) )
ELSEIF(CONMOD .EQ. 'M3')THEN
PKTDEM = PKNDEM / ( 2.0 * (1.0 + PNIUPDEM(I)) )
CTDEM = CNDEM / ( 2.0 * (1.0 + PNIUPDEM(I)) )
ENDIF
C----- ft(i,j)
FTXDEM_IJ = - PKTDEM * DIATAX - CTDEM * VCTXDEM
FTYDEM_IJ = - PKTDEM * DIATAY - CTDEM * VCTYDEM
FTZDEM_IJ = - PKTDEM * DIATAZ - CTDEM * VCTZDEM
FTDEM_IJ = Sqrt( FTXDEM_IJ * FTXDEM_IJ +
& FTYDEM_IJ * FTYDEM_IJ +
& FTZDEM_IJ * FTZDEM_IJ )
C----- Whether slipe, if slipe then ft will equal to 'PMIUS * fn '
If ( FTDEM_IJ .GT. ( PMIUS * FNDEM_IJ ) ) Then
FTXDEM_IJ = PMIUS * FNDEM_IJ * FTXDEM_IJ /
& Dmax1(FTDEM_IJ,acdem)
FTYDEM_IJ = PMIUS * FNDEM_IJ * FTYDEM_IJ /
& Dmax1(FTDEM_IJ,acdem)
FTZDEM_IJ = PMIUS * FNDEM_IJ * FTZDEM_IJ /
& Dmax1(FTDEM_IJ,acdem)
IF(N_SYM1 .EQ. 1)THEN
DELTAT_PP1X(I,N_P1(I)) = DIATAX - VCTXDEM * TDEM
& + DIATATN * PNXDEM
DELTAT_PP1Y(I,N_P1(I)) = DIATAY - VCTYDEM * TDEM
& + DIATATN * PNYDEM
DELTAT_PP1Z(I,N_P1(I)) = DIATAZ - VCTZDEM * TDEM
& + DIATATN * PNZDEM
ENDIF
ELSE
DELTAT_PP1X(I,N_P1(I)) = DIATAX
DELTAT_PP1Y(I,N_P1(I)) = DIATAY
DELTAT_PP1Z(I,N_P1(I)) = DIATAZ
Endif
TPXDEM_IJ = TPXDEM_IJ + RPDEM(I) *
& ( PNYDEM * FTZDEM_IJ - PNZDEM * FTYDEM_IJ )
TPYDEM_IJ = TPYDEM_IJ + RPDEM(I) *
& ( PNZDEM * FTXDEM_IJ - PNXDEM * FTZDEM_IJ )
TPZDEM_IJ = TPZDEM_IJ + RPDEM(I) *
& ( PNXDEM * FTYDEM_IJ - PNYDEM * FTXDEM_IJ )
C----- rolling friction torque
IF(ROLLMOD .EQ. 'CON1')THEN
TRXDEM_IJ = TRXDEM_IJ - RMIUS * FNDEM_IJ *
& OMXDEM(I) / OMDEM
TRYDEM_IJ = TRYDEM_IJ - RMIUS * FNDEM_IJ *
& OMYDEM(I) / OMDEM
TRZDEM_IJ = TRZDEM_IJ - RMIUS * FNDEM_IJ *
& OMZDEM(I) / OMDEM
ELSEIF(ROLLMOD .EQ. 'CON2')THEN
DOMX = OMXDEM(I) - OMXDEM(J)
DOMY = OMYDEM(I) - OMYDEM(J)
DOMZ = OMZDEM(I) - OMZDEM(J)
DOM = DMAX1( Sqrt( DOMX**2 + DOMY**2 + DOMZ**2 ), acdem)
TRXDEM_IJ = TRXDEM_IJ - RMIUS * FNDEM_IJ * DOMX / DOM
TRYDEM_IJ = TRYDEM_IJ - RMIUS * FNDEM_IJ * DOMY / DOM
TRZDEM_IJ = TRZDEM_IJ - RMIUS * FNDEM_IJ * DOMZ / DOM
ELSEIF(ROLLMOD .EQ. 'VIS1')THEN
VOMX = RPDEM(I) * ( OMYDEM(I)*PNZDEM-OMZDEM(I)*PNYDEM ) +
& RPDEM(J) * ( OMYDEM(J)*PNZDEM-OMZDEM(J)*PNYDEM )
VOMY = RPDEM(I) * ( OMZDEM(I)*PNXDEM-OMXDEM(I)*PNZDEM ) +
& RPDEM(J) * ( OMZDEM(J)*PNXDEM-OMXDEM(J)*PNZDEM )
VOMZ = RPDEM(I) * ( OMXDEM(I)*PNYDEM-OMYDEM(I)*PNXDEM ) +
& RPDEM(J) * ( OMXDEM(J)*PNYDEM-OMYDEM(J)*PNXDEM )
VOM = SQRT( VOMX**2 + VOMY**2 + VOMZ**2 )
TRXDEM_IJ = TRXDEM_IJ - RMIUS * VOM *
& FNDEM_IJ * OMXDEM(I) / OMDEM
TRYDEM_IJ = TRYDEM_IJ - RMIUS * VOM *
& FNDEM_IJ * OMYDEM(I) / OMDEM
TRZDEM_IJ = TRZDEM_IJ - RMIUS * VOM *
& FNDEM_IJ * OMZDEM(I) / OMDEM
ELSEIF(ROLLMOD .EQ. 'VIS2')THEN
VOMX = RPDEM(I) * ( OMYDEM(I)*PNZDEM-OMZDEM(I)*PNYDEM ) +
& RPDEM(J) * ( OMYDEM(J)*PNZDEM-OMZDEM(J)*PNYDEM )
VOMY = RPDEM(I) * ( OMZDEM(I)*PNXDEM-OMXDEM(I)*PNZDEM ) +
& RPDEM(J) * ( OMZDEM(J)*PNXDEM-OMXDEM(J)*PNZDEM )
VOMZ = RPDEM(I) * ( OMXDEM(I)*PNYDEM-OMYDEM(I)*PNXDEM ) +
& RPDEM(J) * ( OMXDEM(J)*PNYDEM-OMYDEM(J)*PNXDEM )
TRXDEM_IJ = TRXDEM_IJ - RMIUS * VOMX * FNDEM_IJ
TRYDEM_IJ = TRYDEM_IJ - RMIUS * VOMY * FNDEM_IJ
TRZDEM_IJ = TRZDEM_IJ - RMIUS * VOMZ * FNDEM_IJ
ENDIF
FNXDEM(I) = FNXDEM(I) + FNXDEM_IJ
FNYDEM(I) = FNYDEM(I) + FNYDEM_IJ
FNZDEM(I) = FNZDEM(I) + FNZDEM_IJ
FTXDEM(I) = FTXDEM(I) + FTXDEM_IJ
FTYDEM(I) = FTYDEM(I) + FTYDEM_IJ
FTZDEM(I) = FTZDEM(I) + FTZDEM_IJ
Endif
Endif
Enddo
C---------------------------------------------------------------------------------C
C contact between particle and boundary, chenjun, 20191124 c
c---------------------------------------------------------------------------------c
IF(NP_BCD(I) .NE. 0)THEN
Do J = 1, NP_BCD(I)
IF(NCONT_INFO(I,J) .NE. 7)THEN
PNXDEM = BCDEM_INFO(I,3*J-2) - XPDEM(I)
PNYDEM = BCDEM_INFO(I,3*J-1) - YPDEM(I)
PNZDEM = BCDEM_INFO(I,3*J) - ZPDEM(I)
PNLDEM = Sqrt( PNXDEM**2 + PNYDEM**2 + PNZDEM**2 )
ALFADEM = 2 * RPDEM(I)- PNLDEM
C If(ALFADEM .GT. 0.1*2*RPDEM(I)) Then
C Print*, 'Error1 in softmodule.f: contact error!'
C print*, 'ALFADEM=',ALFADEM
C print*, '(X,Y,Z)=',XPDEM(I),YPDEM(I),ZPDEM(I)
C !Pause
C Endif
IF(ALFADEM / RPDEM(I) .GT. ALFADEM_MAX)THEN
ALFADEM_MAX = ALFADEM / RPDEM(I)
ENDIF
DIATAX = 0.0
DIATAY = 0.0
DIATAZ = 0.0
N_SYM1 = 0
DO K = 1, N_P2(I)
IF(NCONT_INFO(I,J) + I_PARTICLE .EQ. N_PP2(I,K))THEN
DIATAX = DELTAT_PP1X(I,K)
DIATAY = DELTAT_PP1Y(I,K)
DIATAZ = DELTAT_PP1Z(I,K)
N_SYM1 = 1
ENDIF
ENDDO
N_P1(I) = N_P1(I) + 1
If(N_P1(I) .GT. I_CPN) Then
Print*, 'Error3 in softmodule.f: N_P1(I)'
!Pause
Endif
N_PP1(I,N_P1(I)) = NCONT_INFO(I,J) + I_PARTICLE
c----- unit vector
PNXDEM = PNXDEM / PNLDEM
PNYDEM = PNYDEM / PNLDEM
PNZDEM = PNZDEM / PNLDEM
c------ ralative velocity between particle i and j
UP_IJ = UPDEM(I)
VP_IJ = VPDEM(I)
WP_IJ = WPDEM(I)
!print*, UPDEM(I)
c------ UNDEM
UNDEM = UP_IJ * PNXDEM + VP_IJ * PNYDEM +
& WP_IJ * PNZDEM
C----- kn and CNDEM
IF(CONMOD .EQ. 'M1')THEN
PKNDEM = PKN_M1PW
CNDEM = 2.0 * SQRT( PMDEM(I) * PMDEM(I) /
& ( PMDEM(I) + PMDEM(I) ) * PKNDEM ) *
& ABS( LOG(EN_M1PP) ) /
& SQRT(PI_CON**2+(LOG(EN_M1PW))**2)
ELSEIF(CONMOD .EQ. 'M2')THEN
PKNDEM = 4./3. / ( (1. - PNIUPDEM(I)**2)/EPDEM(I) +
& (1. - PNIUPDEM(I)**2) / EPDEM(I) ) /
& ( ( RPDEM(I) + RPDEM(I) ) /
& ( RPDEM(I) * RPDEM(I) ) )**0.5
CNDEM = 2. * Sqrt( PKNDEM * ( PMDEM(I) * PMDEM(I) /
& ( PMDEM(I) + PMDEM(I) ) ) )
ELSEIF(CONMOD .EQ. 'M3')THEN
PKNDEM = 2.*PI_CON**2*PMDEM(I)/(20.0*TDEM)**2
CNDEM = 2.0*0.3*Sqrt(PMDEM(I)*PKNDEM)
ENDIF
C----- fn(i,j)
FNDEM_IJ = - PKNDEM * ALFADEM - CNDEM * UNDEM
FNXDEM_IJ = FNDEM_IJ * PNXDEM
FNYDEM_IJ = FNDEM_IJ * PNYDEM
FNZDEM_IJ = FNDEM_IJ * PNZDEM
FNDEM_IJ = ABS( FNDEM_IJ )
C----- VT(i,j)
VCTXDEM = UP_IJ - UNDEM * PNXDEM +
& RPDEM(I) * (OMYDEM(I)*PNZDEM - OMZDEM(I)*PNYDEM)
VCTYDEM = VP_IJ - UNDEM * PNYDEM -
& RPDEM(I) * (OMXDEM(I)*PNZDEM - OMZDEM(I)*PNXDEM)
VCTZDEM = WP_IJ - UNDEM * PNZDEM +
& RPDEM(I) * (OMXDEM(I)*PNYDEM - OMYDEM(I)*PNXDEM)
VCTNLDEM = Sqrt(VCTXDEM**2+VCTYDEM**2+VCTZDEM**2)
C----- DIATAX
IF(N_SYM1 .EQ. 0)THEN
DIATAX = VCTXDEM * DMIN1(
& ALFADEM / Dmax1(UNDEM,acdem), TDEM )
DIATAY = VCTYDEM * DMIN1(
& ALFADEM / Dmax1(UNDEM,acdem), TDEM )
DIATAZ = VCTZDEM * DMIN1(
& ALFADEM / Dmax1(UNDEM,acdem), TDEM )
ELSE
DIATATN = DIATAX * PNXDEM + DIATAY * PNYDEM
& + DIATAZ * PNZDEM
DIATAX = DIATAX - DIATATN * PNXDEM
& + VCTXDEM * TDEM
DIATAY = DIATAY - DIATATN * PNYDEM
& + VCTYDEM * TDEM
DIATAZ = DIATAZ - DIATATN * PNZDEM
& + VCTZDEM * TDEM
ENDIF
C----- kt and CTDEM
IF(CONMOD .EQ. 'M1')THEN
PKTDEM = RK_M1PW * PKNDEM
CTDEM = RC_M1PW * CNDEM
ELSEIF(CONMOD .EQ. 'M2')THEN
PKTDEM = 8. * ALFADEM**0.5 / ( (1.-PNIUPDEM(I)**2) /
& GPDEM(I) + (1. - PNIUPDEM(I)**2) /GPDEM(I) ) /
& ( (RPDEM(I) + RPDEM(I)) / (RPDEM(I) * RPDEM(I)) )**0.5
CTDEM = 2. * Sqrt( ( PKTDEM * PMDEM(I) * PMDEM(I) / (PMDEM(I)
& + PMDEM(I) ) ) )
ELSEIF(CONMOD .EQ. 'M3')THEN
PKTDEM = PKNDEM / (2.0*(1.0+PNIUPDEM(I)))
CTDEM = CNDEM / (2.0*(1.0+PNIUPDEM(I)))
ENDIF
C----- ft(i,j)
FTXDEM_IJ = - PKTDEM * DIATAX - CTDEM * VCTXDEM
FTYDEM_IJ = - PKTDEM * DIATAY - CTDEM * VCTYDEM
FTZDEM_IJ = - PKTDEM * DIATAZ - CTDEM * VCTZDEM
FTDEM_IJ = Sqrt( FTXDEM_IJ * FTXDEM_IJ +
& FTYDEM_IJ * FTYDEM_IJ +
& FTZDEM_IJ * FTZDEM_IJ )
C----- Whether slipe, if slipe then ft will equal to 'PMIUSPW * fn '
If ( FTDEM_IJ .GT. ( PMIUSPW * FNDEM_IJ ) ) Then
FTXDEM_IJ = PMIUSPW * FNDEM_IJ * FTXDEM_IJ /
& Dmax1(FTDEM_IJ,acdem)
FTYDEM_IJ = PMIUSPW * FNDEM_IJ * FTYDEM_IJ /
& Dmax1(FTDEM_IJ,acdem)
FTZDEM_IJ = PMIUSPW * FNDEM_IJ * FTZDEM_IJ /
& Dmax1(FTDEM_IJ,acdem)
IF(N_SYM1 .EQ. 1)THEN
DELTAT_PP1X(I,N_P1(I)) = DIATAX - VCTXDEM * TDEM
& + DIATATN * PNXDEM
DELTAT_PP1Y(I,N_P1(I)) = DIATAY - VCTYDEM * TDEM
& + DIATATN * PNYDEM
DELTAT_PP1Z(I,N_P1(I)) = DIATAZ - VCTZDEM * TDEM
& + DIATATN * PNZDEM
ENDIF
ELSE
DELTAT_PP1X(I,N_P1(I)) = DIATAX
DELTAT_PP1Y(I,N_P1(I)) = DIATAY
DELTAT_PP1Z(I,N_P1(I)) = DIATAZ
Endif
TPXDEM_IJ = TPXDEM_IJ + RPDEM(I) *
& ( PNYDEM * FTZDEM_IJ - PNZDEM * FTYDEM_IJ )
TPYDEM_IJ = TPYDEM_IJ + RPDEM(I) *
& ( PNZDEM * FTXDEM_IJ - PNXDEM * FTZDEM_IJ )
TPZDEM_IJ = TPZDEM_IJ + RPDEM(I) *
& ( PNXDEM * FTYDEM_IJ - PNYDEM * FTXDEM_IJ )
C----- rolling friction torque
IF(ROLLMOD .EQ. 'CON1')THEN
TRXDEM_IJ = TRXDEM_IJ - RMIUSPW * FNDEM_IJ *
& OMXDEM(I) / OMDEM
TRYDEM_IJ = TRYDEM_IJ - RMIUSPW * FNDEM_IJ *
& OMYDEM(I) / OMDEM
TRZDEM_IJ = TRZDEM_IJ - RMIUSPW * FNDEM_IJ *
& OMZDEM(I) / OMDEM
ELSEIF(ROLLMOD .EQ. 'CON2')THEN
TRXDEM_IJ = TRXDEM_IJ - RMIUSPW * FNDEM_IJ *
& OMXDEM(I) / OMDEM
TRYDEM_IJ = TRYDEM_IJ - RMIUSPW * FNDEM_IJ *
& OMYDEM(I) / OMDEM
TRZDEM_IJ = TRZDEM_IJ - RMIUSPW * FNDEM_IJ *
& OMZDEM(I) / OMDEM
ELSEIF(ROLLMOD .EQ. 'VIS1')THEN
VOMX = RPDEM(I) * ( OMYDEM(I) * PNZDEM -
& OMZDEM(I) * PNYDEM )
VOMY = RPDEM(I) * ( OMZDEM(I) * PNXDEM -
& OMXDEM(I) * PNZDEM )
VOMZ = RPDEM(I) * ( OMXDEM(I) * PNYDEM -
& OMYDEM(I) * PNXDEM )
VOM = SQRT( VOMX**2 + VOMY**2 + VOMZ**2 )
TRXDEM_IJ = TRXDEM_IJ - RMIUSPW * VOM *
& FNDEM_IJ * OMXDEM(I) / OMDEM
TRYDEM_IJ = TRYDEM_IJ - RMIUSPW * VOM *
& FNDEM_IJ * OMYDEM(I) / OMDEM
TRZDEM_IJ = TRZDEM_IJ - RMIUSPW * VOM *
& FNDEM_IJ * OMZDEM(I) / OMDEM
ELSEIF(ROLLMOD .EQ. 'VIS2')THEN
VOMX = RPDEM(I) * ( OMYDEM(I) * PNZDEM -
& OMZDEM(I) * PNYDEM )
VOMY = RPDEM(I) * ( OMZDEM(I) * PNXDEM -
& OMXDEM(I) * PNZDEM )
VOMZ = RPDEM(I) * ( OMXDEM(I) * PNYDEM -
& OMYDEM(I) * PNXDEM )
TRXDEM_IJ = TRXDEM_IJ - RMIUSPW * VOMX * FNDEM_IJ
TRYDEM_IJ = TRYDEM_IJ - RMIUSPW * VOMY * FNDEM_IJ
TRZDEM_IJ = TRZDEM_IJ - RMIUSPW * VOMZ * FNDEM_IJ
ELSEIF(ROLLMOD .EQ. 'NONE')THEN
TRXDEM_IJ = 0.0
TRYDEM_IJ = 0.0
TRZDEM_IJ = 0.0
ENDIF
FNXDEM(I) = FNXDEM(I) + FNXDEM_IJ
FNYDEM(I) = FNYDEM(I) + FNYDEM_IJ
FNZDEM(I) = FNZDEM(I) + FNZDEM_IJ
FTXDEM(I) = FTXDEM(I) + FTXDEM_IJ
FTYDEM(I) = FTYDEM(I) + FTYDEM_IJ
FTZDEM(I) = FTZDEM(I) + FTZDEM_IJ
ENDIF
ENDDO
ENDIF
C---------------------------------------------------------------------------------C
C bounded rolling friction torque, chenjun, 20200326 c
c---------------------------------------------------------------------------------c
IF(ROLLBOUND .EQ. 'NONE')THEN
TPXDEM(I) = TPXDEM_IJ + TRXDEM_IJ
TPYDEM(I) = TPYDEM_IJ + TRYDEM_IJ
TPZDEM(I) = TPZDEM_IJ + TRZDEM_IJ
ELSEIF(ROLLBOUND .EQ. 'BOD1')THEN
TRX0 = - PIPDEM(I) * OMXDEM(I) / TDEM
TRY0 = - PIPDEM(I) * OMYDEM(I) / TDEM
TRZ0 = - PIPDEM(I) * OMZDEM(I) / TDEM
TPXDEM(I) = TPXDEM_IJ + SIGN( DMIN1( ABS(TRXDEM_IJ) ,
& ABS(TRX0) ), TRX0 )
TPYDEM(I) = TPYDEM_IJ + SIGN( DMIN1( ABS(TRYDEM_IJ) ,
& ABS(TRY0) ), TRY0 )
TPZDEM(I) = TPZDEM_IJ + SIGN( DMIN1( ABS(TRZDEM_IJ) ,
& ABS(TRZ0) ), TRZ0 )
ELSEIF(ROLLBOUND .EQ. 'BOD2')THEN
TRX0 = - PIPDEM(I) * OMXDEM(I) / TDEM - TPXDEM_IJ
TRY0 = - PIPDEM(I) * OMYDEM(I) / TDEM - TPYDEM_IJ
TRZ0 = - PIPDEM(I) * OMZDEM(I) / TDEM - TPZDEM_IJ
TPXDEM(I) = TPXDEM_IJ + SIGN( DMIN1( ABS(TRXDEM_IJ) ,
& ABS(TRX0) ), TRX0 )
TPYDEM(I) = TPYDEM_IJ + SIGN( DMIN1( ABS(TRYDEM_IJ) ,
& ABS(TRY0) ), TRY0 )
TPZDEM(I) = TPZDEM_IJ + SIGN( DMIN1( ABS(TRZDEM_IJ) ,
& ABS(TRZ0) ), TRZ0 )
ENDIF
C---------------------------------------------------------------------------------C
C assigning variable, chenjun, 20200326 c
c---------------------------------------------------------------------------------c
N_P2(I) = N_P1(I)
IF(N_P1(I) .NE. 0)THEN
DO J = 1, N_P1(I)
N_PP2(I,J) = N_PP1(I,J)
ENDDO
ENDIF
DO J = N_P1(I)+1, I_CPN
DELTAT_PP1X(I,J) = 0.0
DELTAT_PP1Y(I,J) = 0.0
DELTAT_PP1Z(I,J) = 0.0
ENDDO
Endif
Enddo
!$OMP END DO
!$OMP END PARALLEL
WRITE(*,'(A14,F8.4)'),'ALFADEM_MAX=',ALFADEM_MAX
Return
End