PROGRAM TTMEHL
DIMENSION X(0:120),D(0:120,0:120),BSA(-5:-1,-1:1),BSB(11:15,-1:1),SAB(0:120),P(0:120),H(0:120),TEMF(0:120,-5:15),TEMP(0:120,0:10),DSABDX(0:120),Z(0:10),ROR(0:120,0:10),U(0:120,0:10),DUDZ(0:120,0:10),TAU(0:120,0:10),AITA(0:120,0:10),DPDX(0:120),DPDT(0:120),RHAL(0:120,0:10),RHA(0:120,0:10),ACOE(-1:1,119),BCOE(-1:1,119),TEML(0:120,-5:15),PL(0:120),HL(0:120),C(119,119),SKK(0:120),DENE(0:120),DENL(0:120),ZA(-6:0),ZB(10:16),EPSI(0:120),DENS(0:120),PJUG(0:120),FRIC(64),HAVE(64),HH0(64),PREM(0:120,64),P16(0:120),P32(0:120),P48(0:120),H16(0:120),H32(0:120),H48(0:120),S16(0:120),S32(0:120),S48(0:120),T16(0:120,-5:15),T32(0:120,-5:15),T48(0:120,-5:15)
OPEN(UNIT=15,FILE='RES.DAT',STATUS='UNKNOWN')
PI=4.0*ATAN(1.0)
N=120
M=110
SLIP=1.2
AA=0.10
AB=0.05
ALG=0.4
BLG=0.2
W0=3.0E-5
U0=1.5E-11
G0=5000.0
R0=0.027
T0=313.0
TAU0=1.0E+7
AITA0=0.08
Z0=0.6
S0=1.1
ALFA=2.19E-8
HK0=0.38
CALL MESH(X,N)
DZ=0.1
DO 20 J=0,10
Z(J)=DZ*J
20 CONTINUE
E1=G0/ALFA
PH=E1/4.0*SQRT(8.0*W0/PI)
BH=R0*SQRT(8.0*W0/PI)
LSTEP=64
WRITE(15,40)
40 FORMAT(1X,15('*'), 'Eyring Transient Micro-EHL Solution',15('*')/)
WRITE(15,60) W0,U0,G0
60 FORMAT(5X,'W0=',E13.6,10X,'U0=',E13.6,10X,'G0=',F8.2)
WRITE(15,70) PH,BH,SLIP
70 FORMAT(5X,'PH=',E13.6,10X,'BH=',E13.6,10X,'SLIP=',F6.3)
TAU00=TAU0/PH
ALAMDA=0.75*U0*PI*PI/(W0*W0)
AL1=LOG(AITA0)+9.67
AL2=5.1*1E-9*PH
AL3=1.0/(1.0-138.0/T0)
AL4=(138.0/T0)/(1.0-138.0/T0)
CL1=0.6*1.0E-9*PH
CL2=1.7*1.0E-9*PH
CL3=0.00065*T0
H0=BH*BH/R0
DZA=0.05
DZB=0.05
UA=(2.0+SLIP)/2.0
UB=(2.0-SLIP)/2.0
TLG=BLG/UB
DT=TLG/LSTEP
WRITE(15,75)AA,AB,ALG,BLG
75 FORMAT(5X,'AA=',F10.5,5X,'AB=',F10.5,5X,'ALG=',F7.3,5X,'BLG=',F7.3/)
CF0=2000.0
CFA=470.0
CFB=470.0
DEN0=870.0
DENA=7850.0
DENB=7850.0
FK0=0.14
FKA=46.0
FKB=46.0
UR=U0*E1*R0/AITA0
PRDL=CF0*AITA0/FK0
REYN=DEN0*UR*BH/AITA0
HOB=H0/BH
RESTAR=REYN*HOB**2
EC=UR*UR/(CF0*T0)
YT=PH*CF0*BH/(UR*FK0)
CNA=BH*UR*CFA*DENA/FKA
CNB=BH*UR*CFB*DENB/FKB
CMA=(FK0/FKA)/HOB
CMB=(FK0/FKB)/HOB
CH=(PH*H0)/(AITA0*UR)
CNS1=RESTAR*PRDL
CNS2=CL3*EC*YT*HOB*HOB
CNS3=EC*YT*HOB
CALL DEFORM(X,D,PI,N)
CALL COEFCL(ACOE,BCOE,SKK,X,N)
CALL TCOEFF(BSA,BSB,ZA,ZB)
DO 90 I=1,N-1
DO 80 J=1,N-1
C(I,J)=ACOE(-1,I)*D(I-1,J)+ACOE(0,I)*D(I,J)+ACOE(1,I)*D(I+1,J)
80 CONTINUE
90 CONTINUE
TIME=0.0
CALL SABCAL(SAB,DSABDX,X,AA,AB,ALG,BLG,UA,UB,TIME,PI,N)
CALL PREGET(PL,X,SAB,SKK,PI,HK0,N)
CALL TEMGET(TEML,PL,X,Z,ZA,ZB,SLIP,N)
DO 110 I=0,N
P(I)=PL(I)
DO 100 J=0,10
TEMP(I,J)=TEML(I,J)
100 CONTINUE
110 CONTINUE
DO 125 I=0,N
DO 115 J=-5,15
TEMF(I,J)=TEML(I,J)
115 CONTINUE
125 CONTINUE
DE0=0.0
DO 130 J=0,N
DE0=DE0+D(70,J)*PL(J)
130 CONTINUE
H00=HK0-DE0
CALL HCAL(D,PL,X,HL,SAB,H00,N)
CALL ARCAL(AITA,ROR,TEMP,PL,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,N)
CALL PARTFX(PL,DPDX,ACOE,X,N)
CALL TAUCAL(DPDX,HL,Z,TAU,AITA,TAU00,UA,UB,CH,HOB,DZ,N)
CALL RHEOCL(EPSI,DENS,DENL,TAU,HL,AITA,ROR,Z,TAU00,DZ,UA,UB,ALAMDA,N)
DO 150 I=0,N
RHAL(I,0)=0.0
DO 140 J=1,10
RHAL(I,J)=RHAL(I,J-1)+0.5*DZ*(ROR(I,J-1)+ROR(I,J))
140 CONTINUE
150 CONTINUE
DO 170 I=0,N
DO 160 J=0,10
RHAL(I,J)=RHAL(I,J)*HL(I)
160 CONTINUE
170 CONTINUE
IJUDGE=0
DO 2000 LARGE=1,20
WRITE(*,*)
WRITE(*,260) LARGE
260 FORMAT(//5X,30('*'),1X,'LARGE LOOP',I3,1X,30('*')//)
DO 280 I=0,N
PJUG(I)=PL(I)
280 CONTINUE
DO 1000 LTIME=1,LSTEP
WRITE(*,*) 'LTIME=',LTIME
TIME=DT*LTIME
CALL SABCAL(SAB,DSABDX,X,AA,AB,ALG,BLG,UA,UB,TIME,PI,N)
IF (IJUDGE.EQ.0) THEN
CALL PRESS(P,H,HL,TEMP,D,X,SAB,AITA,ROR,DPDX,ACOE,BCOE,EPSI,Z,TAU,DENE,DENS,DENL,DSABDX,SKK,C,M,H00,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,TAU00,UA,UB,CH,HOB,DZ,DT,ALAMDA,PI,N)
DO 360 I=0,N
PREM(I,LTIME)=P(I)
360 CONTINUE
CALL PARTFX(P,DPDX,ACOE,X,N)
DO 370 I=0,N
DPDT(I)=(P(I)-PL(I))/DT
370 CONTINUE
CALL HCAL(D,P,X,H,SAB,H00,N)
CALL TEMPER(TEMF,TEMP,BSA,BSB,ROR,U,DUDZ,P,H,TAU,AITA,DPDX,DPDT,RHAL,RHA,ACOE,TEML,Z,X,CNA,CNB,CMA,CMB,CNS1,CNS2,CNS3,DT,DZA,DZB,UA,UB,CH,HOB,DZ,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,TAU00,N)
ELSE
DO 380 I=0,N
P(I)=PREM(I,LTIME)
380 CONTINUE
CALL PARTFX(P,DPDX,ACOE,X,N)
DO 390 I=0,N
DPDT(I)=(P(I)-PL(I))/DT
390 CONTINUE
CALL HCAL(D,P,X,H,SAB,H00,N)
CALL TEMPER(TEMF,TEMP,BSA,BSB,ROR,U,DUDZ,P,H,TAU,AITA,DPDX,DPDT,RHAL,RHA,ACOE,TEML,Z,X,CNA,CNB,CMA,CMB,CNS1,CNS2,CNS3,DT,DZA,DZB,UA,UB,CH,HOB,DZ,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,TAU00,N)
CALL PRESS(P,H,HL,TEMP,D,X,SAB,AITA,ROR,DPDX,ACOE,BCOE,EPSI,Z,TAU,DENE,DENS,DENL,DSABDX,SKK,C,M,H00,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,TAU00,UA,UB,CH,HOB,DZ,DT,ALAMDA,PI,N)
DO 400 I=0,N
PREM(I,LTIME)=P(I)
400 CONTINUE
END IF
CALL HAVFRC(H,TAU,SKK,PI,HAV,FRC,N)
HAVE(LTIME)=HAV
FRIC(LTIME)=FRC
HH0(LTIME)=H00
DO 410 I=0,N
PL(I)=P(I)
HL(I)=H(I)
410 CONTINUE
DO 440 I=0,N
DO 430 J=-5,15
TEML(I,J)=TEMF(I,J)
430 CONTINUE
440 CONTINUE
DO 460 I=0,N
DO 450 J=0,10
RHAL(I,J)=RHA(I,J)
450 CONTINUE
460 CONTINUE
IF (LTIME.EQ.16) THEN
DO 520 I=0,N
P16(I)=P(I)
H16(I)=H(I)
S16(I)=SAB(I)
DO 510 J=-5,15
T16(I,J)=TEMF(I,J)
510 CONTINUE
520 CONTINUE
ELSE IF (LTIME.EQ.32) THEN
DO 540 I=0,N
P32(I)=P(I)
H32(I)=H(I)
S32(I)=SAB(I)
DO 530 J=-5,15
T32(I,J)=TEMF(I,J)
530 CONTINUE
540 CONTINUE
ELSE IF (LTIME.EQ.48) THEN
DO 560 I=0,N
P48(I)=P(I)
H48(I)=H(I)
S48(I)=SAB(I)
DO 550 J=-5,15
T48(I,J)=TEMF(I,J)
550 CONTINUE
560 CONTINUE
END IF
CALL ARCAL(AITA,ROR,TEMP,PL,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,N)
CALL TAUCAL(DPDX,HL, Z,TAU,AITA,TAU00,UA,UB,CH,HOB,DZ,N)
CALL RHEOCL(EPSI,DENS,DENL,TAU,HL,AITA,ROR,Z,TAU00,DZ,UA,UB,ALAMDA,N)
1000 CONTINUE
ERROR=0.0
SS=0.0
DO 1020 I=0,N
ERROR=ERROR+ABS(P(I)-PJUG(I))
SS=SS+P(I)
1020 CONTINUE
ERROR=ERROR/SS
WRITE(*,*)
WRITE(*,*) 'LARGE=',LARGE,'ERROR=',ERROR
WRITE(15,*) 'LARGE=',LARGE,'ERROR=',ERROR
IF (ERROR.LT.0.05) IJUDGE=1
IF ((ERROR.LT.0.002).AND.(LARGE.GT.10)) GOTO 2010
2000 CONTINUE
2010 WRITE(15,2020)
2020 FORMAT(//3X,11('-'),'The Final Results',10('-')/)
WRITE (15,2040)
2040 FORMAT (/3X,10('*'),'Friction Coefficient',10('*')/)
WRITE (15,'(6(1X,I4,F8.5))') (I,FRIC(I),I=1,LSTEP)
WRITE(15,2050)
2050 FORMAT(/3X,10('*'),'Average Film Thickness',10('*')/)
WRITE(15,'(6(1X,I4,F8.5))') (I,HAVE(I),I=1,LSTEP)
WRITE(15,2060)
2060 FORMAT(/3X,10('*'),'Rigid Surface Distance H00',10('*')/)
WRITE(15,'(6(1X,I4,F8.4))') (I,HH0(I),I=1,LSTEP)
WRITE(15,2080)
2080 FORMAT(//1X,20('*'),'Results at Time Step 16',21('*')/)
CALL OUTRES(P16,H16,S16,T16,X,N,T0)
WRITE(15,2100)
2100 FORMAT(//1X,20('*'),'Results at Time Step 32',21('*')/)
CALL OUTRES(P32,H32,S32,T32,X,N,T0)
WRITE(15,2120)
2120 FORMAT(//1X,20('*'),'Results at Time Step 48',21('*')/)
CALL OUTRES(P48,H48,S48,T48,X,N,T0)
WRITE(15,2150)
2150 FORMAT(//1X,20('*'),'Results at Time Step 64',21('*')/)
CALL OUTRES(P,H,SAB,TEMF,X,N,T0)
WRITE(15,2200)
2200 FORMAT(//30X,'end of output file')
END
SUBROUTINE PRESS(P,H,HL,TEMP,D,X,SAB,AITA,ROR,DPDX,ACOE,BCOE,EPSI,Z,TAU,DENE,DENS,DENL,DSABDX,SKK,C,M,H00,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,TAU00,UA,UB,CH,HOB,DZ,DT,ALAMDA,PI,N)
DIMENSION P(0:120),POLD(0:120),H(0:120),C(119,119),HL(0:120),TEMP(0:120,0:10),D(0:120,0:120),X(0:120),SAB(0:120),AITA(0:120,0:10),ROR(0:120,0:10),DPDX(0:120),ACOE(-1:1,119),BCOE(-1:1,119),Z(0:10),TAU(0:120,0:10),EPSI(0:120),DENS(0:120),DENE(0:120),DENL(0:120),DXEPSI(0:120),DXDENS(0:120),E(-1:1,119),F(0:120),SK(0:120,0:120),SY(0:120),DSABDX(0:120),SKK(0:120),PRH0(0:120),SA(0:120,0:120),SB(0:120),DP(0:120),IIMX(0:120),JJMX(0:120),ZZR(0:120),ZR(0:120,0:120),POLDK(0:120)
DO 600 KKK=1,10
DO 20 I=0,N
POLDK(I)=P(I)
20 CONTINUE
ERRPNL=1.0
DO 500 NNN=1,10
DO 30 I=0,N
POLD(I)=P(I)
30 CONTINUE
HOLD=H00
CALL HCAL(D,P,X,H,SAB,H00,N)
CALL ARCAL(AITA,ROR,TEMP,P,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,N)
CALL PARTFX(P,DPDX,ACOE,X,N)
CALL TAUCAL(DPDX,H,Z,TAU,AITA,TAU00,UA,UB,CH,HOB,DZ,N)
CALL RHEOCL(EPSI,DENS,DENE,TAU,H,AITA,ROR,Z,TAU00,DZ,UA,UB,ALAMDA,N)
CALL PARTFX(EPSI,DXEPSI,ACOE,X,N)
CALL PARTFX(DENS,DXDENS,ACOE,X,N)
DO 50 I=1,M-1
E(-1,I)=DXEPSI(I)*ACOE(-1,I)+EPSI(I)*BCOE(-1,I)
E(0,I)=DXEPSI(I)*ACOE(0,I)+EPSI(I)*BCOE(0,I)
E(1,I)=DXEPSI(I)*ACOE(1,I)+EPSI(I)*BCOE(1,I)
50 CONTINUE
DO 60 I=1,M-1
F(I)=DXDENS(I)+(2.0*DENE(I)-DENL(I))/DT
60 CONTINUE
DO 80 I=1,M-1
DO 70 J=1,M-1
SK(I,J)=-(F(I)*D(I,J)+DENS(I)*C(I,J))
70 CONTINUE
80 CONTINUE
DO 90 I=1,M-1
SK(I,I-1)=SK(I,I-1)+E(-1,I)
SK(I,I)=SK(I,I)+E(0,I)
SK(I,I+1)=SK(I,I+1)+E(1,I)
90 CONTINUE
DO 100 I=1,M-1
SK(I,M)=-F(I)
SY(I)=F(I)*(0.5*X(I)**2-SAB(I))+DENS(I)*(X(I)-DSABDX(I))-DENE(I)*HL(I)/DT
100 CONTINUE
DO 130 J=1,M-1
SK(M,J)=SKK(J)
130 CONTINUE
SK(M,M)=0.0
SY(M)=PI/2.0
DO 140 I=0,M-1
PRH0(I)=P(I)
140 CONTINUE
PRH0(M)=H00
DO 150 I=M+1,N
PRH0(I)=0.0
150 CONTINUE
IF (NNN.EQ.1) THEN
DO 170 I=1,M
DO 160 J=1,M
SA(I,J)=SK(I,J)
160 CONTINUE
170 CONTINUE
END IF
DO 200 I=1,M
SB(I)=SY(I)
DO 190 J=1,M
SB(I)=SB(I)-SK(I,J)*PRH0(J)
190 CONTINUE
200 CONTINUE
IF (NNN.EQ.1) THEN
CALL GAUSSP(SA,SB,DP,IIMX,JJMX,ZZR,ZR,M)
ELSE
CALL GAUSSP(SA,SB,DP,IIMX,JJMX,ZZR,ZR,M)
END IF
DO 210 I=1,M
PRH0(I)=PRH0(I)+DP(I)
210 CONTINUE
SSS=0.0
SER=0.0
DO 270 I=1,M-1
SER=SER+ABS(DP(I))
SSS=SSS+PRH0(I)
270 CONTINUE
ERRPN=SER/SSS
OMIGA=0.2
DO 290 I=1,M-1
P(I)=POLD(I)+OMIGA*DP(I)
290 CONTINUE
H00=HOLD+OMIGA*DP(M)
IF (ERRPN.GT.ERRPNL) THEN
WRITE(*,*) 'BAD! NNN=',NNN,'ERRPN=',ERRPN
GOTO 510
END IF
DO 310 I=0,N
IF (P(I).LT.0.0) P(I)=0.0
310 CONTINUE
IF ((ERRPN.LT.0.001).AND.(NNN.GT.5)) GOTO 510
ERRPNL=ERRPN
500 CONTINUE
510 SSK=0.0
SEK=0.0
DO 520 I=1,M-1
SSK=SSK+P(I)
SEK=SEK+ABS(P(I)-POLDK(I))
520 CONTINUE
ERRPK=SEK/SSK
CALL GETM(P,M,N)
WRITE(*,*) 'KKK=',KKK,'ERRPK=',ERRPK,'M=',M
IF ((ERRPK.LT.0.001).AND.(KKK.GT.1)) GOTO 610
600 CONTINUE
610 RETURN
END
SUBROUTINE TEMPER(TEMF,TEMP,BSA,BSB,ROR,U,DUDZ,P,H,TAU,AITA,DPDX,DPDT,RHAL,RHA,ACOE,TEML,Z,X,CNA,CNB,CMA,CMB,CNS1,CNS2,CNS3,DT,DZA,DZB,UA,UB,CH,HOB,DZ,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,TAU00,N)
DIMENSION TEMF(0:120,-5:15),TEMP(0:120,0:10),TK(21),BSA(-5:-1,-1:1),BSB(11:15,-1:1),P(0:120),H(0:120),ROR(0:120,0:10),U(0:120,0:10),Z(0:10),DUDZ(0:120,0:10),TAU(0:120,0:10),X(0:120),AITA(0:120,0:10),DPDX(0:120),RHAL(0:120,0:10),RHA(0:120,0:10),RH(0:120,0:10),ACOE(-1:1,119),TOLD(0:120,-5:15),STA(-6:16,-6:16),STB(-6:16),SA(21,21),SB(21),TEML(0:120,-5:15),DPDT(0:120)
J1=5
DO 500 LMN=1,20
DO 60 I=0,N
DO 50 J=-5,15
TOLD(I,J)=TEMF(I,J)
50 CONTINUE
60 CONTINUE
DO 80 I=0,N
DO 70 J=0,10
TEMP(I,J)=TEMF(I,J)
70 CONTINUE
80 CONTINUE
CALL ARCAL(AITA,ROR,TEMP,P,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,N)
CALL TAUCAL(DPDX,H,Z,TAU,AITA,TAU00,UA,UB,CH,HOB,DZ,N)
CALL UCAL(U,DUDZ,TAU,AITA,H,CH,UA,UB,TAU00,DZ,N)
CALL RHABCL(RH,RHA,RHAL,H,ROR,U,ACOE,DZ,DT,N)
DO 300 K=1,N-1
DXP=X(K)-X(K-1)
DXM=X(K+1)-X(K)
HDZ=H(K)*DZ
DO 110 I=-6,16
STB(I)=0.0
DO 100 J=-6,16
STA(I,J)=0.0
100 CONTINUE
110 CONTINUE
DO 125 J=-5,-1
STA(J,J-1)=-BSA(J,-1)
STA(J,J)=CNA/DT+CNA*UA/DXP-BSA(J,0)
STA(J,J+1)=-BSA(J,1)
STB(J)=CNA/DT*TEML(K,J)+CNA*UA/DXP*TEMF(K-1,J)
125 CONTINUE
J=0
STA(J,J-1)=1.0/DZA
STA(J,J)=-(CMA/HDZ+1.0/DZA)
STA(J,J+1)=CMA/HDZ
STB(J)=0.0
DO 130 J=1,9
IF (U(K,J).GT.0.0) THEN
STA(J,J-1)=-(1.0/HDZ**2-0.5*CNS1*RH(K,J)/HDZ)
STA(J,J)=CNS1*ROR(K,J)/DT+CNS1*ROR(K,J)*U(K,J)/DXP+2.0/HDZ**2
STA(J,J+1)=-(1.0/HDZ**2+0.5*CNS1*RH(K,J)/HDZ)
STB(J)=CNS3*TAU(K,J)/H(K)*DUDZ(K,J)+CNS1*ROR(K,J)/DT*TEML(K,J)+CNS1/DXP*ROR(K,J)*U(K,J)*TEMF(K-1,J)+CNS2/ROR(K,J)*(DPDT(K)+U(K,J)*DPDX(K))*TEMF(K,J)
ELSE
STA(J,J-1)=-(1.0/HDZ**2-0.5*CNS1*RH(K,J)/HDZ)
STA(J,J)=CNS1*ROR(K,J)/DT-CNS1*ROR(K,J)*U(K,J)/DXM+2.0/HDZ**2
STA(J,J+1)=-(1.0/HDZ**2+0.5*CNS1*RH(K,J)/HDZ)
STB(J)=CNS3*TAU(K,J)/H(K)*DUDZ(K,J)+CNS1*ROR(K,J)/DT*TEML(K,J)-CNS1/DXM*ROR(K,J)*U(K,J)*TEMF(K+1,J)+CNS2/ROR(K,J)*(DPDT(K)+U(K,J)*DPDX(K))*TEMF(K,J)
END IF
130 CONTINUE
J=10
STA(J,J-1)=CMB/HDZ
STA(J,J)=-(CMB/HDZ+1.0/DZB)
STA(J,J+1)=1.0/DZB
STB(J)=0.0
DO 140 J=11,15
STA(J,J-1)=-BSB(J,-1)
STA(J,J)=CNB/DT+CNB*UB/DXP-BSB(J,0)
STA(J,J+1)=-BSB(J,1)
STB(J)=CNB/DT*TEML(K,J)+CNB*UB/DXP*TEMF(K-1,J)
140 CONTINUE
J=-5
ABCD=STA(J,J-1)*1.0
STB(J)=STB(J)-ABCD
J=15
ABCD=STA(J,J+1)*1.0
STB(J)=STB(J)-ABCD
DO 170 I=1,21
SB(I)=STB(I-6)
DO 160 J=1,21
SA(I,J)=STA(I-6,J-6)
160 CONTINUE
170 CONTINUE
CALL CATCHT(SA,SB,TK)
DO 180 J=1,21
IF(TK(J).LT.1.0) TK(J)=1.0
TEMF(K,J-6)=TK(J)
180 CONTINUE
300 CONTINUE
DO 310 J=-5,15
IF ((J.GT.0).AND.(J.LT.10)) THEN
IF (U(0,J).GE.0.0) THEN
TEMF(0,J)=1.0
ELSE
TEMF(0,J)=TEMF(1,J)
END IF
ELSE
TEMF(0,J)=1.0
END IF
TEMF(N,J)=TEMF(N-1,J)
310 CONTINUE
TERR=0.0
TSSS=0.0
DO 320 I=1,N-1
TERR=TERR+ABS(TEMF(I,J1)-TOLD(I,J1))
TSSS=TSSS+ABS(TEMF(I,J1))
320 CONTINUE
TERR=TERR/TSSS
WRITE(*,*)'---LMN=',LMN,'---TERR=',TERR
OMIT=0.4
DO 340 I=1,N
DO 330 J=-5,15
TEMF(I,J)=TOLD(I,J)+OMIT*(TEMF(I,J)-TOLD(I,J))
IF (TEMF(I,J).LT.1.0) TEMF(I,J)=1.0
330 CONTINUE
340 CONTINUE
DO 360 I=0,N
DO 350 J=0,10
TEMP(I,J)=TEMF(I,J)
350 CONTINUE
360 CONTINUE
IF ((TERR.LT.0.0001).AND.(LMN.GT.4)) GOTO 600
500 CONTINUE
600 CALL ARCAL(AITA,ROR,TEMP,P,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,N)
CALL TAUCAL(DPDX,H,Z,TAU,AITA,TAU00,UA,UB,CH,HOB,DZ,N)
CALL UCAL(U,DUDZ,TAU,AITA,H,CH,UA,UB,TAU00,DZ,N)
CALL RHABCL(RH,RHA,RHAL,H,ROR,U,ACOE,DZ,DT,N)
END
SUBROUTINE GAUSSP(SA,SB,P,IIMX,JJMX,ZZR,ZR,N)
DIMENSION SA(0:120,0:120),SB(0:120),P(0:120),IIMX(0:120),JJMX(0:120),ZZR(0:120),ZR(0:120,0:120)
M=N
DO 50 K=1,M
JJMX(K)=K
50 CONTINUE
DO 300 K=1,M-1
ABSMX=0.0
IMAX=K
JMAX=K
DO 125 J=K,M
DO 110 I=K,M
ABSA=ABS(SA(I,J))
IF (ABSA.GT.ABSMX) THEN
ABSMX=ABSA
IMAX=I
JMAX=J
END IF
110 CONTINUE
125 CONTINUE
IIMX(K)=IMAX
DO 130 J=K,M
TEMP=SA(K,J)
SA(K,J)=SA(IMAX,J)
SA(IMAX,J)=TEMP
130 CONTINUE
TEMP=SB(K)
SB(K)=SB(IMAX)
SB(IMAX)=TEMP
DO 135 I=1,M
TEMP=SA(I,K)
SA(I,K)=SA(I,JMAX)
SA(I,JMAX)=TEMP
135 CONTINUE
IT=JJMX(K)
JJMX(K)=JJMX(JMAX)
JJMX(JMAX)=IT
ZZ=SA(K,K)
ZZR(K)=ZZ
DO 140 J=K,M
SA(K,J)=SA(K,J)/ZZ
140 CONTINUE
SB(K)=SB(K)/ZZ
DO 200 I=K+1,M
Z=SA(I,K)
ZR(K,I)=Z
DO 150 J=K,M
SA(I,J)=SA(I,J)-SA(K,J)*Z
150 CONTINUE
SB(I)=SB(I)-SB(K)*Z
200 CONTINUE
300 CONTINUE
P(M)=SB(M)/SA(M,M)
DO 500 K=M-1,1,-1
SUM=SB(K)
DO 400 J=K+1,M
SUM=SUM-P(J)*SA(K,J)
400 CONTINUE
P(K)=SUM
500 CONTINUE
DO 700 J=1,M
ITRUE=JJMX(J)
SB(ITRUE)=P(J)
700 CONTINUE
DO 800 J=1,M
P(J)=SB(J)
800 CONTINUE
END
SUBROUTINE GAUSSR(SA,SB,P,IIMX,JJMX,ZZR,ZR,N)
DIMENSION SA(0:120,0:120),SB(0:120),P(0:120),IIMX(0:120),JJMX(0:120),ZZR(0:120),ZR(0:120,0:120)
M=N
DO 300 K=1,M-1
TEMP=SB(K)
SB(K)=SB(IIMX(K))
SB(IIMX(K))=TEMP
SB(K)=SB(K)/ZZR(K)
DO 200 I=K+1,M
SB(I)=SB(I)-SB(K)*ZR(K,I)
200 CONTINUE
300 CONTINUE
P(M)=SB(M)/SA(M,M)
DO 500 K=M-1,1,-1
SUM=SB(K)
DO 400 J=K+1,M
SUM=SUM-P(J)*SA(K,J)
400 CONTINUE
P(K)=SUM
500 CONTINUE
DO 700 J=1,M
ITRUE=JJMX(J)
SB(ITRUE)=P(J)
700 CONTINUE
DO 800 J=1,M
P(J)=SB(J)
800 CONTINUE
END
SUBROUTINE GETM(P,M,N)
DIMENSION P(0:120)
M2=M-1
IF (P(M2).GT.0.003) THEN
M=M+1
ELSE IF (P(M2).LE.1.0E-8) THEN
M=M-1
ELSE
M=M
END IF
IF (M.GT.N) M=N
END
SUBROUTINE ARCAL(AITA,ROR,TEMP,P,AL1,AL2,AL3,AL4,CL1,CL2,CL3,Z0,S0,N)
DIMENSION AITA(0:120,0:10),ROR(0:120,0:10),TEMP(0:120,0:10),P(0:120)
DO 50 I=0,N
EA=(1.0+AL2*P(I))**Z0
FA=CL1*P(I)/(1.0+CL2*P(I))
DO 40 J=0,10
EB=(AL3*TEMP(I,J)-AL4)**(-S0)
EC=AL1*(-1.0+EA*EB)
FB=CL3*(TEMP(I,J)-1.0)
AITA(I,J)=EXP(EC)
ROR(I,J)=1.0+FA-FB
40 CONTINUE
50 CONTINUE
END
SUBROUTINE TAUCAL(DPDX,H,Z,TAU,AITA,TAU00,UA,UB,CH,HOB,DZ,N)
DIMENSION DPDX(0:120),H(0:120),TAU(0:120,0:10),Z(0:10),AITA(0:120,0:10),VIS(0:10)
UUAB=UA-UB
DO 100 K=0,N
PXT0=DPDX(K)*H(K)*HOB/TAU00
DO 20 J=0,10
VIS(J)=AITA(K,J)
20 CONTINUE
FF1=0.0
FF2=0.0
DO 30 J=0,9
FF1=FF1+0.5*DZ*(TAU00/VIS(J)*COSH(Z(J)*PXT0)+TAU00/VIS(J+1)*COSH(Z(J+1)*PXT0))
FF2=FF2+0.5*DZ*(TAU00/VIS(J)*SINH(Z(J)*PXT0)+TAU00/VIS(J+1)*SINH(Z(J+1)*PXT0))
30 CONTINUE
FF1=FF1*H(K)
FF2=FF2*H(K)
RRL=SQRT(UUAB**2+CH**2*(FF1**2-FF2**2))
RRL0=(RRL-UUAB)/(CH*(FF1+FF2))
IF (RRL0.LE.0.0) THEN
TAUA0=-2.0
ELSE
TAUA0=LOG(RRL0)
END IF
TAU(K,0)=TAUA0*TAU00
DO 50 J=1,10
TAU(K,J)=TAU(K,0)+HOB*H(K)*Z(J)*DPDX(K)
50 CONTINUE
100 CONTINUE
END
SUBROUTINE UCAL(U,DUDZ,TAU,AITA,H,CH,UA,UB,TAU00,DZ,N)
DIMENSION U(0:120,0:10),TAU(0:120,0:10),DUDZ(0:120,0:10),H(0:120),AITA(0:120,0:10)
DO 20 I=0,N
DO 10 J=0,10
DUDZ(I,J)=CH*H(I)*(TAU00/AITA(I,J))* SINH(TAU(I,J)/TAU00)
10 CONTINUE
20 CONTINUE
DO 80 I=0,N
U(I,0)=UA
U(I,10)=UB
DO 70 J=1,9
U(I,J)=U(I,J-1)+0.5*DZ*(DUDZ(I,J-1)+DUDZ(I,J))
70 CONTINUE
80 CONTINUE
END
SUBROUTINE RHABCL(RH,RHA,RHAL,H,ROR,U,ACOE,DZ,DT,N)
DIMENSION RH(0:120,0:10),RHA(0:120,0:10),RHB(0:120,0:10),RHAL(0:120,0:10),H(0:120),ROR(0:120,0:10),U(0:120,0:10),ACOE(-1:1,119)
DO 200 I=0,N
RHA(I,0)=0.0
RHB(I,0)=0.0
DO 100 J=1,10
RHA(I,J)=RHA(I,J-1)+0.5*DZ*(ROR(I,J-1)+ROR(I,J))
RHB(I,J)=RHB(I,J-1)+0.5*DZ*(ROR(I,J-1)*U(I,J-1)+ROR(I,J)*U(I,J))
100 CONTINUE
200 CONTINUE
DO 400 I=0,N
DO 300 J=0,10
RHA(I,J)=RHA(I,J)*H(I)
RHB(I,J)=RHB(I,J)*H(I)
300 CONTINUE
400 CONTINUE
DO 600 I=1,N-1
DO 500 J=0,10
RH(I,J)=(RHA(I,J)-RHAL(I,J))/DT+ACOE(-1,I)*RHB(I-1,J)+ACOE(0,I)*RHB(I,J)+ACOE(1,I)*RHB(I+1,J)
500 CONTINUE
600 CONTINUE
DO 800 J=0,10
RH(0,J)=RH(1,J)
RH(N,J)=RH(N-1,J)
800 CONTINUE
END
SUBROUTINE CATCHT(A,B,T)
DIMENSION A(21,21),B(21),T(21),C(21),D(21)
C(1)=A(1,2)/A(1,1)
D(1)=B(1)/A(1,1)
DO 100 K=2,20
C(K)=A(K,K+1)/(A(K,K)-A(K,K-1)*C(K-1))
D(K)=(B(K)-A(K,K-1)*D(K-1))/(A(K,K)-A(K,K-1)*C(K-1))
100 CONTINUE
T(21)=(B(21)-A(21,20)*D(20))/(A(21,21)-A(21,20)*C(20))
DO 200 K=20,1,-1
T(K)=D(K)-C(K)*T(K+1)
200 CONTINUE
END
SUBROUTINE RHEOCL(EPSI,DENS,DENE,TAU,H,AITA,ROR,Z,TAU00,DZ,UA,UB,ALAMDA,N)
DIMENSION EPSI(0:120),DENS(0:120),DENE(0:120),H(0:120),TAU(0:120,0:10),AITA(0:120,0:10),ROR(0:120,0:10),Z(0:10),VA(0:10),VA0(0:10),VA1(0:10)
DO 100 K=0,N
DO 15 J=0,10
TT0=TAU(K,J)/TAU00
IF (ABS(TT0).LT.0.001) THEN
VA(J)=1.0/AITA(K,J)
ELSE
VA(J)=SINH(TT0)/(AITA(K,J)*TT0)
END IF
15 CONTINUE
VA0(0)=0.0
VA1(0)=0.0
DO 40 I=1,10
VA0(I)=0.0
VA1(I)=0.0
DO 30 J=0,I-1
VA0(I)=VA0(I)+0.5*DZ*(VA(J)+VA(J+1))
VA1(I)=VA1(I)+0.5*DZ*(VA(J)*Z(J)+VA(J+1)*Z(J+1))
30 CONTINUE
40 CONTINUE
AIE=1.0/VA0(10)
AIE1=1.0/VA1(10)
DEN0=0.0
DEN1=0.0
DEN2=0.0
DO 50 J=0,9
DEN0=DEN0+0.5*DZ*(ROR(K,J)+ROR(K,J+1))
DEN1=DEN1+0.5*DZ*(ROR(K,J)*VA0(J)+ROR(K,J+1)*VA0(J+1))
DEN2=DEN2+0.5*DZ*(ROR(K,J)*VA1(J)+ROR(K,J+1)*VA1(J+1))
50 CONTINUE
EPSI(K)=12.0*(AIE*DEN1/AIE1-DEN2)*H(K)**3/ALAMDA
DENS(K)=2.0*(DEN1*AIE*(UB-UA)+DEN0*UA)/(UA+UB)
DENE(K)=DEN0
100 CONTINUE
END
SUBROUTINE HCAL(D,P,X,H,SAB,H00,N)
DIMENSION D(0:120,0:120),P(0:120),X(0:120),H(0:120),SAB(0:120),DE(0:120)
DO 100 I=0,N
DE(I)=0.0
DO 90 J=0,N
DE(I)=DE(I)+D(I,J)*P(J)
90 CONTINUE
100 CONTINUE
DO 130 I=0,N
H(I)=H00+X(I)*X(I)/2.0+DE(I)-SAB(I)
130 CONTINUE
END
SUBROUTINE PARTFX(F,DFDX,ACOE,X,N)
DIMENSION F(0:120),DFDX(0:120),ACOE(-1:1,119),X(0:120)
DO 50 I=1,N-1
DFDX(I)=ACOE(-1,I)*F(I-1)+ACOE(0,I)*F(I)+ACOE(1,I)*F(I+1)
50 CONTINUE
DFDX(0)=(F(1)-F(0))/(X(1)-X(0))
DFDX(N)=(F(N)-F(N-1))/(X(N)-X(N-1))
END
SUBROUTINE TCOEFF(BSA,BSB,ZA,ZB)
DIMENSION ZA(-6:0),ZB(10:16),BSA(-5:-1,-1:1),BSB(11:15,-1:1)
ZA(-6)=-3.15
ZA(-5)=-1.55
ZA(-4)=-0.75
ZA(-3)=-0.35
ZA(-2)=-0.15
ZA(-1)=-0.05
ZA(0)=0.0
ZB(10)=0.0
ZB(11)=0.05
ZB(12)=0.15
ZB(13)=0.35
ZB(14)=0.75
ZB(15)=1.55
ZB(16)=3.15
DO 100 J=-5,-1
BSA(J,-1)=2.0/((ZA(J-1)-ZA(J))*(ZA(J-1)-ZA(J+1)))
BSA(J,0)=2.0/((ZA(J)-ZA(J-1))*(ZA(J)-ZA(J+1)))
BSA(J,1)=2.0/((ZA(J+1)-ZA(J-1))*(ZA(J+1)-ZA(J)))
100 CONTINUE
DO 200 J=11,15
BSB(J,-1)=2.0/((ZB(J-1)-ZB(J))*(ZB(J-1)-ZB(J+1)))
BSB(J,0)=2.0/((ZB(J)-ZB(J-1))*(ZB(J)-ZB(J+1)))
BSB(J,1)=2.0/((ZB(J+1)-ZB(J-1))*(ZB(J+1)-ZB(J)))
200 CONTINUE
END
SUBROUTINE DEFORM(X,D,PI,N)
DIMENSION X(0:120),D(0:120,0:120)
DP=-0.5/PI
DO 20 I=0,N
DO 10 J=0,N
D(I,J)=0.0
10 CONTINUE
20 CONTINUE
DO 500 I=0,N
DO 400 JJ=1,N/2
J=2*JJ-1
D1=(X(J-1)-X(J))*(X(J-1)-X(J+1))
D2=(X(J)-X(J-1))*(X(J)-X(J+1))
D3=(X(J+1)-X(J-1))*(X(J+1)-X(J))
A1=2.0/D1
A2=-(X(J)+X(J+1))/D1+A1*X(J)
A3=2.0/D2
A4=-(X(J+1)+X(J-1))/D2+A3*X(J)
A5=2.0/D3
A6=-(X(J)+X(J-1))/D3+A5*X(J)
ZMIN=X(I)-X(J-1)
ZMAX=X(I)-X(J+1)
IF (ABS(ZMIN).LT.1.0E-6) THEN
FM1=0.0
FN2=0.0
ELSE
FM1=ZMIN**2*(LOG(ZMIN**2)-3.0)
FN2=ZMIN**3*(LOG(ABS(ZMIN**3))-4.0)
END IF
IF (ABS(ZMAX).LT.1.0E-6) THEN
FM2=0.0
FN1=0.0
ELSE
FM2=ZMAX**2*(LOG(ZMAX**2)-3.0)
FN1=ZMAX**3*(LOG(ABS(ZMAX**3))-4.0)
END IF
FM=FM1-FM2
FN=FN1-FN2
FK=FM*(X(I)-X(J))/2.0+2.0/9.0*FN
DIJM1=DP*(A1*FK+A2*FM/2.0)
DIJ=DP*(A3*FK+A4*FM/2.0)
DIJP1=DP*(A5*FK+A6*FM/2.0)
D(I,J-1)=D(I,J-1)+DIJM1
D(I,J)=D(I,J)+DIJ
D(I,J+1)=D(I,J+1)+DIJP1
400 CONTINUE
500 CONTINUE
END
SUBROUTINE OUTRES(P,H,SAB,TEMF,X,N,T0)
DIMENSION P(0:120),H(0:120),TEMF(0:120,-5:15),X(0:120),T(0:120,-5:15),SAB(0:120)
DO 30 I=0,N
DO 20 J=-5,15
T(I,J)=T0*(TEMF(I,J)-1.0)
20 CONTINUE
30 CONTINUE
DO 50 I=0,N
WRITE(15,40) I,X(I),P(I),H(I),SAB(I)
40 FORMAT(1X,'I=',I4,4X,'X=',F8.4,4X,'P=',F8.4,4X,'H=',F8.4,4X,'Sa+Sb=',F8.4)
50 CONTINUE
WRITE(15,60)
60 FORMAT(/1X,'**X**',18X,'**Film Temperature Rises (^C)**'/)
DO 80 I=0,N
WRITE(15,70) X(I),(T(I,J),J=0,10)
70 FORMAT(1X,F7.4,2X,11F6.2)
80 CONTINUE
WRITE(15,100)
100 FORMAT(/1X,'**X**',5X,'**Temp.Rises of solid A**',7X,'**Temp.Rises of Solid B**'/)
DO 120 I=0,N
WRITE(15,110) X(I),(T(I,J),J=-5,-1),(T(I,J),J=11,15)
110 FORMAT(1X,F7.4,3X,5F6.2,'---',5F6.2)
120 CONTINUE
END
SUBROUTINE HAVFRC(H,TAU,SKK,PI,HAV,FRC,N)
DIMENSION H(0:120),TAU(0:120,0:10),SKK(0:120)
HAV=0.0
DO 20 I=30,109
HAV=HAV+0.0125*(H(I)+H(I+1))
20 CONTINUE
HAV=HAV/2.0
FRC=0.0
DO 40 I=0,N
FRC=FRC+SKK(I)*TAU(I,0)
40 CONTINUE
FRC=-FRC/(PI/2.0)
END
SUBROUTINE MESH(X,N)
DIMENSION X(0:120)
DO 10,I=0,19
X(I)=0.025*(1.0-1.16**(20-I))/0.16-1.25
10 CONTINUE
DO 20 I=20,N
X(I)=0.025*(I-70)
20 CONTINUE
END
SUBROUTINE SABCAL(SAB,DSABDX,X,AA,AB,ALG,BLG,UA,UB,TIME,PI,N)
DIMENSION SAB(0:120),DSABDX(0:120),X(0:120)
DO 10 I=0,N
SAB(I)=AA*COS(2.0*PI*(X(I)-UA*TIME)/ALG)+AB*COS(2.0*PI*(X(I)-UB*TIME)/BLG)
DSABDX(I)=-2.0*PI/ALG*AA*SIN(2.0*PI*(X(I)-UA*TIME)/ALG)-2.0*PI/BLG*AB*SIN(2.0*PI*(X(I)-UB*TIME)/BLG)
10 CONTINUE
END
SUBROUTINE COEFCL(ACOE,BCOE,SKK,X,N)
DIMENSION ACOE(-1:1,119),BCOE(-1:1,119),SKK(0:120),X(0:120),DL(0:119)
DO 10 I=0,N-1
DL(I)=X(I+1)-X(I)
10 CONTINUE
DO 20 I=1,N-1
AB=DL(I-1)*(DL(I-1)+DL(I))
ACOE(-1,I)=-DL(I)/AB
BCOE(-1,I)=2.0/AB
AB=DL(I-1)*DL(I)
ACOE(0,I)=(DL(I)-DL(I-1))/AB
BCOE(0,I)=-2.0/AB
AB=DL(I)*(DL(I-1)+DL(I))
ACOE(1,I)=DL(I-1)/AB
BCOE(1,I)=2.0/AB
20 CONTINUE
SKK(0)=DL(0)/2.0
SKK(N)=DL(N-1)/2.0
DO 30 I=1,N-1
SKK(I)=(DL(I)+DL(I-1))/2.0
30 CONTINUE
END
SUBROUTINE PREGET(P,X,SAB,SKK,PI,HK0,N)
DIMENSION P(0:120),X(0:120),SAB(0:120),SKK(0:120)
X0=-1.4
X1=-0.8
X2=0.8
X3=1.0
PX1=SQRT(1.0-X1*X1)
PX2=SQRT(1.0-X2*X2)
DO 10 I=0,N
IF (X(I).LE.X0) THEN
P(I)=0.0
ELSE IF(X(I).LE.X1) THEN
P(I)=((X(I)-X0)/(X1-X0))**2*PX1
ELSE IF (X(I).LE.X2) THEN
P(I)=SQRT(1.0-X(I)*X(I))
ELSE IF (X(I).LE.X3) THEN
P(I)=((X(I)-X3)/(X2-X3))**2*PX2
ELSE
P(I)=0.0
END IF
10 CONTINUE
FC=0.75
DO 20 I=0,N
P(I)=P(I)*(1.0+FC*SAB(I)/HK0)
20 CONTINUE
W=0.0
DO 30 I=0,N
W=W+SKK(I)*P(I)
30 CONTINUE
WFC=0.5*PI/W
DO 40 I=0,N
P(I)=P(I)*WFC
40 CONTINUE
END
SUBROUTINE TEMGET(T,P,X,Z,ZA,ZB,SLIP,N)
DIMENSION T(0:120,-5:15),P(0:120),X(0:120),Z(0:10),ZA(-6:0),ZB(10:16),TM(0:120)
X1=-1.4
X2=X(N)
ZM=0.5+0.1*SLIP**2
E=0.2
TOUT=0.06
C=0.4
FK=TOUT/(X2-X1)
DO 20 I=0,N
IF (X(I).LE.X1) THEN
TM(I)=1.0
ELSE
TM(I)=E*SLIP*(P(I)+FK*(X(I)-X1))+1.0
END IF
20 CONTINUE
DO 50 I=0,N
IF (X(I).LE.X1) THEN
DO 30 J=0,10
T(I,J)=1.0
30 CONTINUE
ELSE
A=C*SLIP*(TM(I)-1.0)/((C*SLIP+1.0)*ZM*ZM-(1.0-ZM)**2)
DO 40 J=0,10
T(I,J)=TM(I)-A*(Z(J)-ZM)**2
40 CONTINUE
END IF
50 CONTINUE
DO 80 I=0,N
G=(T(I,0)-1.0)/ZA(-5)**2
DO 60 J=-5,-1
T(I,J)=G*(ZA(J)-ZA(-5))**2+1.0
60 CONTINUE
G=(T(I,10)-1.0)/ZB(15)**2
DO 70 J=11,15
T(I,J)=G*(ZB(J)-ZB(15))**2+1.0
70 CONTINUE
80 CONTINUE
END
O_JR4R1QL3`1ZG4DKRIYWSS.png (49.06 KB, 下载次数: 349)
fcode 发表于 2016-3-17 18:48
1.请放弃 CVF 和 Powerstation 这些古老的编译器
2. 你遇到的首要问题是, ** 乘方遇到了负数。
当指数是浮 ...
fcode 发表于 2016-3-20 07:57
除数为 0
exp 指数太大,超出浮点数范围
90度求tan
9OBYC`F1W]@B7BCTF2RTN@Q.png (3.85 KB, 下载次数: 365)
fcode 发表于 2016-3-24 09:40
1. 你的截图很显然还是 Poswerstation 的,而不是VS的显示
2. 你的代码问题可能较多。在你那里调试,是 705 ...
0I])UK0ZP)]L1~XU$IU%M7O.png (110.84 KB, 下载次数: 360)
我运行出来是这样的,在706行
`BAO(0GNT6(6OP5ACOMDW%I.png (7.29 KB, 下载次数: 339)
因为vs截图比较黑,所以在powerstation上编辑截的图,不好意思,请见谅
fcode 发表于 2016-3-24 11:18
1.可以改默认kind值。但是从你的截图来看,你改了依然超界
2.请直接卸载Powerstation,没有保留的必要。截 ...
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