弹流润滑数值计算程序迭代失败 ！！求助！！
如题，程序出自《弹性流体动压润滑方法与程序》，运行失败，程序如下。求助出错原因PROGRAM LINEEHL
COMMON /COM1/ENDA,A1,A2,A3,Z,HM0,DH/COM2/EDA0/COM4/X0,XE/COM3/E1,PH,B,R
DATA PAI,Z,P0/3.14159265,0.68,1.96E8/
DATA N,X0,XE,W,E1,EDA0,R,Us/130,-4.0,1.5,1.0E5,2.2E11,0.05,0.05,1.5/
OPEN(8,FILE='OUT.DAT',STATUS='UNKNOWN')
W1=W/(E1*R)
PH=E1*SQRT(0.5*W1/PAI)
A1=(ALOG(EDA0)+9.67)
A2=PH/P0
A3=0.59/(PH*1.E-9)
B=4.*R*PH/E1
ALFA=Z*A1/P0
G=ALFA*E1
U=EDA0*US/(2.*E1*R)
CC1=SQRT(2.*U)
AM=2.*PAI*(PH/E1)**2/CC1
ENDA=3.*(PAI/AM)**2/8.
HM0=1.6*(R/B)**2*G**0.6*U**0.7*W1**(-0.13)
WRITE(*,*)N,X0,XE,W,E1,EDA0,R,US
CALL SUBAK(N)
CALL EHL(N)
STOP
END
SUBROUTINE EHL(N)
DIMENSION X(1100),P(1100),H(1100),RO(1100),POLD(1100),EPS(1100),EDA(1100),V(1100)
COMMON /COM1/ENDA,A1,A2,A3,Z,HM0,DH/COM4/X0,XE
COMMON /COM3/E1,PH,B,RR
MK=1
DX=(XE-X0)/(N-1.0)
DO 10 I=1,N
X(I)=X0+(I-1)*DX
IF(ABS(X(I)).GE.1.0)P(I)=0.0
IF(ABS(X(I)).LT.1.0)P(I)=SQRT(1.-X(I)*X(I))
10 CONTINUE
CALL HREE(N,DX,X,P,H,RO,EPS,EDA,V)
CALL FZ(N,P,POLD)
14 KK=19
CALL ITER(N,KK,DX,X,P,H,RO,EPS,EDA,V)
MK=MK+1
CALL ERROP(N,P,POLD,ERP)
WRITE(*,*)'ERP=',ERP
IF(ERP.GT.1.E-5.AND.DH.GT.1.E-7)THEN
IF(MK.GE.50)THEN
MK=1
DH=0.5*DH
ENDIF
GOTO 14
ENDIF
IF(DH.LE.1.E-7)WRITE(*,*)'Pressures are not convergent!!!'
H2=1.E3
P2=0.0
DO 106 I=1,N
IF(H(I).LT.H2)H2=H(I)
IF(P(I).GT.P2)P2=P(I)
106 CONTINUE
H3=H2*B*B/RR
P3=P2*PH
110 FORMAT(6(1X,E12.6))
120 CONTINUE
WRITE(*,*)'P2,H2,P3,H3=',P2,H2,P3,H3
CALL OUTHP(N,X,P,H)
RETURN
END
SUBROUTINE OUTHP(N,X,P,H)
DIMENSION X(N),P(N),H(N)
DO 10 I=1,N
WRITE(8,20)X(I),P(I),H(I)
10 CONTINUE
20 FORMAT(1X,6(E12.6,1X))
RETURN
END
SUBROUTINE HREE(N,DX,X,P,H,RO,EPS,EDA,V)
DIMENSION X(N),P(N),H(N),RO(N),EPS(N),EDA(N),V(N)
COMMON /COM1/ENDA,A1,A2,A3,Z,HM0,DH/COM2/EDA0/COMAK/AK(0:1100)
DATA KK,PAI1,G0/0,0.318309886,1.570796325/
IF(KK.NE.0)GOTO 3
H00=0.0
3 W1=0.0
DO 4 I=1,N
4 W1=W1+P(I)
C3=(DX*W1)/G0
DW=1.-C3
CALL VI(N,DX,P,V)
HMIN=1.E3
DO 30 I=1,N
H0=0.5*X(I)*X(I)+V(I)
IF(H0.LT.HMIN)HMIN=H0
H(I)=H0
30 CONTINUE
IF(KK.NE.0)GOTO 32
KK=1
DH=0.005*HM0
H00=-HMIN+HM0
32 IF(DW.LT.0.0)H00=H00+DH
IF(DW.GT.0.0)H00=H00-DH
DO 60 I=1,N
H(I)=H00+H(I)
EDA(I)=EXP(A1*(-1.+(1.+A2*P(I))**Z))
RO(I)=(A3+1.35*P(I))/(A3+P(I))
EPS(I)=RO(I)*H(I)**3/(ENDA*EDA(I))
60 CONTINUE
RETURN
END
SUBROUTINE ITER(N,KK,DX,X,P,H,RO,EPS,EDA,V)
DIMENSION X(N),P(N),H(N),RO(N),EPS(N),EDA(N),V(N)
COMMON /COMAK/AK(0:1100)
DATA PAI1/0.318309886/
DO 100 K=1,KK
D2=0.5*(EPS(1)+EPS(2))
D3=0.5*(EPS(2)+EPS(3))
DO 70 I=2,N-1
D1=D2
D2=D3
IF(I.NE.N-1)D3=0.5*(EPS(I+1)+EPS(I+2))
D8=RO(I)*AK(0)*PAI1
D9=RO(I-1)*AK(1)*PAI1
D10=1.0/(D1+D2+(D9-D8)*DX)
D11=D1*P(I-1)+D2*P(I+1)
D12=(RO(I)*H(I)-RO(I-1)*H(I-1)+(D8-D9)*P(I))*DX
P(I)=(D11-D12)*D10
IF(P(I).LT.0.0)P(I)=0.0
70 CONTINUE
CALL HREE(N,DX,X,P,H,RO,EPS,EDA,V)
100 CONTINUE
RETURN
END
SUBROUTINE VI(N,DX,P,V)
DIMENSION P(N),V(N)
COMMON /COMAK/AK(0:1100)
PAI1=0.318309886
C=ALOG(DX)
DO 10 I=1,N
V(I)=0.0
DO 10 J=1,N
IJ=IABS(I-J)
10 V(I)=V(I)+(AK(IJ)+C)*DX*P(J)
DO I=1,N
V(I)=-PAI1*V(I)
ENDDO
RETURN
END
SUBROUTINE SUBAK(MM)
COMMON /COMAK/AK(0:1100)
DO 10 I=0,MM
10 AK(I)=(I+0.5)*(ALOG(ABS(I+0.5))-1.)-(I-0.5)*(ALOG(ABS(I-0.5))-1.)
RETURN
END
SUBROUTINE FZ(N,P,POLD)
DIMENSION P(N),POLD(N)
DO 10 I=1,N
10 POLD(I)=P(I)
RETURN
END
SUBROUTINE ERROP(N,P,POLD,ERP)
DIMENSION P(N),POLD(N)
SD=0.0
SUM=0.0
DO 10 I=1,N
SD=SD+ABS(P(I)-POLD(I))
POLD(I)=P(I)
10 SUM=SUM+P(I)
ERP=SD/SUM
RETURN
END
给出错误提示。 你好，请问解决了吗
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