---

H=47.479*BMY+128.64D0

RETURN

3 Т=Т1

ТС=Т1-Т0

P=PRESS

IF(PRESS.LE.0D0.OR.PRESS.GT.12D0)Z=0D0

IF(T1.LT.250D0.OR.T1.GT.340D0)Z=0D0

IF(Z.EQ.0D0) GO TO 133

CALL B11BER(T,H,B11)

CALL BBER(T,B11,B,Z)

IF(Z.EQ.0D0) GO TO 133

CALL CBER(T,H,C,Z)

IF(Z.EQ.0D0) GO TO 133

CALL ITER2(P,T,B,C,Z)

133 RETURN

END

SUBROUTINE B11BER(T,H,B11)

IMPLICIT REAL*8(A-H,O-Z)

COMMON/BBLOK/BR11H0(3),BR11H1(3),BR11H2(3),BR22(3),BR23(3),BR33(3)

T2=T*T

B11=BR11H0(1)+BR11H0(2)*T+BR11H0(3)*T2+

*(BR11H1(1)+BR11H1(2)*T+BR11H1(3)*T2)*H+

*(BR11H2(1)+BR11H2(2)*T+BR11H2(3)*T2)*H*H

END

SUBROUTINE BBER(T,B11,BEFF,Z)

IMPLICIT REAL*8(A-H,O-Z)

COMMON/BBLOK/BR11H0(3),BR11H1(3),BR11H2(3),BR22(3),BR23(3),BR33(3)

COMMON/ZETA/Z12,Z13,Y12,Y13,Y123

COMMON/XBLOK/X1,X2,X3,X11,X12,X13,X22,X23,X33

T2=T*T

B22=BR22(1)+BR22(2)*T+BR22(3)*T2

B23=BR23(1)+BR23(2)*T+BR23(3)*T2

B33=BR33(1)+BR33(2)*T+BR33(3)*T2

BA13=B11*B33

IF(BA13.LT.0D0) THEN

Z=0D0

RETURN

ENDIF

ZZZ=Z12+(320D0-T)**2*1.875D-5

BEFF=X11*B11+X12*ZZZ*(B11+B22)+2.*X13*Z13*DSQRT(BA13)+

*X22*B22+2.*X23*B23+X33*B33

END

SUBROUTINE CBER(T,H,CEFF,Z)

IMPLICIT REAL*8(A-H,O-Z)

COMMON/CBLOK/CR111H0(3),CR111H1(3),CR111H2(3),CR222(3),CR223(3),

*CR233(3),CR333(3)

COMMON/ZETA/Z12,Z13,Y12,Y13,Y123

COMMON/XBLOK/X1,X2,X3,X11,X12,X13,X22,X23,X33

T2=T*T

C111=CR111 H0(1)+CR111H0(2)*T+CR111H0(3)*T2+

*(CR111H1(1)+CR111H1(2)*T+CR111H1(3)*T2)*H+

*(CR111H2(1)+CR111H2(2)*T+CR111H2(3)*T2)H*H

C222=CR222(1)+CR222(2)*T+CR222(3)*T2

C223=CR223(1)+CR223(2)*T+CR223(3)*T2

C233=CR233(1)+CR233(2)*T+CR233(3)*T2

C333=CR333(1)+CR333(2)*T+CR333(3)*T2

CA112=C111*C111*C222

CA113=C111*C111*C333

CA122=C111*C222*C222

CA123=C111*C222*C333

CA133=C111^<C333*C333

IF(CA112.LT.0D0.OR.CA113.LT.0D0.OR.CA122.LT.0DO0.OR.

*CA123.LT.0D0.OR.CA133.LT.0D0)THEN

Z=0D0

RETURN

ENDIF

D3REP=1D0/3D0

CEFF=X1*X11*C111+3D0*X11*X2*(CA112)**D3REP*(Y12+(T-270D0)*.0013D0)

*+3.*X11*X3*(CA113)**D3REP*Y13+

*3.*X1*X22*(CA122)**D3REP*(Y12+(T-270D0)*.0013D0)+

*6.*X1*X2*X3*(CA123)**D3REP*Y123+3.*X1*X33*(CA133)**D3REP*Y13+

*X22*X2*C222+3.*X22*X3*C223+3.*X2*X33*C233+X3*X33*C333

END

С Подпрограмма, реализующая схему Кардано для определения

С фактора сжимаемости из уравнения состояния

SUBROUTINE ITER2(P,T,Bm,Cm,Z)

IMPLICIT REAL*8(A-H,O-Z)

B1=1D3*P/2.7715/T

B0=Bl*Bm

C0=Bl**2*Cm

A1=1D0+B0

A0=1D0+1.5*(B0+C0)

A01=A0**2-A1**3

IF(A01.LE.0D0) THEN

Z=0D0

RETURN

ENDIF

A=A0-A01**0.5

A2=DABS(A)**(1D0/3D0)

IF(A-LT.0D0) A2=-A2

Z=(1D0+A2+A1/A2)/3.

END

BLOCK DATA BDGRG2

IMPLICIT REAL*8(A-H,O-Z)

COMMON/BBLOK/BR11H0(3),BR11H1(3),BR11H2(3),BR22(3),BR23(3),

*BR33(3)/CBLOK/CR111H0(3),CR111H1(3),CR111H2(3),CR222(3),

*CR223(3),CR233(3),CR333(3)

COMMON/ZETA/Z12,Z13,Y12,Y13,Y123

COMMON/MBLOK/GM2,GM3,FA,FB,TO,R

DATA BR11H0/-.425468D0,.2865D-2,-.462073D-5/,

* BR11H1/.877118D-3,-.556281D-5,.881514D-8/,

* BR11H2/-.824747D-6,.431436D-8,-.608319D-11/,

* BR22/-.1446D0,.74091D-3,-.91195D-6/,

* BR23/-.339693D0,.161176D-2,-.204429D-5/,

* BR33/-.86834D0,.40376D-2,-.51657D-5/

DATA CR111H0/-.302488D0,.195861D-2,-.316302D-5/,

* CR111 H1/.646422D-3,-.422876D-5,.688157D-8/,

* CR111H2/-.332805D-6,.22316D-8,-.367713D-11/,

* CR222/.78498D-2,-.39895D-4,.61187D-7/,

* CR223/.552066D-2,-.168609D-4,.157169D-7/,

* CR233/.358783D-2,.806674D-5,-.325798D-7/,

* CR333/.20513D-2,.34888D-4,-.83703D-7/

DATA Z12/.72D0/,Z13/-.865D0/,Y12/.92D0/,Y13/.92D0/,Y123/1.1D0/

DATA GM2/28.0135D0/,GM3/44.01D0/,

* FA/22.414097D0/,FB/22.710811D0/,

* TO/273.15D0/,R/.0831451D0/

END 46

C **********************************************************

С * *

С * Подпрограмма расчета коэффициента сжимаемости природного *

С * газа по уравнению состояния AGA8-92DC. *

C * *

C **********************************************************

SUBROUTINE AGA8DC(ICALC)

IMPLICIT REAL*8(A-H,O-Z)

REAL*8 KI,KIJ,KD

COMMON/RM/RM/Y1/Y(19)/NC1/NC/NI1/NI(19)/EFI/EI(19),KI(19),

*GI(19),QI(19),FI(19)

*/INTER1/EIJ(19,19),UIJ(19,19),KIJ(19,19),GIJ(19,19)

*/EFD/ED(19),KD(19),GD(19),QD(19),FD(19)/Z/Z

RM=8.31448D0

IF(ICALC.NE.l) GO TO 3

CALL COMPO1

IF(Z.EQ.0D0) GO TO 133

CALL PARIN1

DO 75 I=1,NC

EI(I)=ED(NI(I))

KI(I)=KD(NI(I))

GI(I)=GD(NI(I))

QI(I)=QD(NI(I))

FI(I)=FD(NI(I))

DO 123 J=1,NC

IF(I.GE.J) GO TO 123

EIJ(I,J)=EIJ(NI(I),NI(J))

UIJ(I,J)=UIJ(NI(I),NI(J))

KIJ(I,J)=KIJ(NI(I),NI(J))

GIJ(I,J)=GIJ(NI(I),NI(J))

123 CONTINUE

75 CONTINUE

CALL PARMI1

3 CALL PHASE1

133 RETURN

END

SUBROUTINE COMPO1

IMPLICIT REAL*8(A-h,O-Z)

DIMENSION ZNI(25),YI(25)

COMMON/YI/Y(19)/YI/YC(25)/NC1/NC/NT1/NI(19)/NPR/NPR

DATA ZNI/.9981D0,.992D0,.9834D0,.9682D0,.971D0,.9997D0,.9947D0,

*.99D0,.993D0,.994D0,985D0,.945D0,.953D0,1D0,.919D0,

*.936D0,.876D0,.892D0,3*1D0,1.0005D0,1.0006D0,.9996D0,.9993D0/

DO 100 I=1,25

100 YI(I)=YC(I)

YI(13)=YI(13)+YI(14)

YI(14)=0D0

IF(NPR.EQ.0D0) GO TO 5

YI(17)=YI(17)+YI(19)+YI(20)+YI(21)

YI(19)=0D0

YI(20)=0D0

YI(21)=0D0

SUM=0D0

DO 7 I=1,25

7 SUM=SUM+YI(I)/ZNI(I)

DO 9 I=1,25

9 YI(I)=YI(I)/ZNI(I)/SUM

5 YI(2)=YI(2)+YI(9)+YI(10)

YI(9)=0D0

YI(10)=O0D0

YI(3)=YI(3)+YI(11)

YI(11)=0D0

YI(15)=YI(15)+YI(16)

YI(16)=0D0

YI(17)=YI(17)+YI(18)

YI(18)=0D0

NC=0

ИС=0

YSUM=0D0

DO 11 1=1,25

IF((I.GE.9.AND.I.LE.11).OR.I.EQ.14.0R.I.EQ.16.0R.I.EQ.18)

*ИС=ИС+1

IF(YI(I).EQ.0D0) GO TO 11

NC=NC+1

NI(NC)=I-ИC

Y(NC)=YI(I)

YSUM=YSUM+Y(NC)

11 CONTINUE

CALL MOLDOl(YI)

DO 13 I=1,NC

13 Y(I)=Y(I)/YSUM

RETURN

END

SUBROUTINE MOLDO1(YI)

IMPLICIT REAL*8(A-H,O-Z)

DIMENSION YI(25)

COMMON/Z/Z

Z=-1D0

YS=0D0

DO 1 I=9,25

1 YS=YS+YI(I)

1F(YI(1).LT.0.65D0.OR.YI(2).GT.0.15D0.OR.YI(3).GT.0.035D0.OR.

*YI(4).GT.0.015D0.OR.YI(5).GT.0.015D0.OR.YS.GT.0.01D0) Z=0D0

IF(YI(6).GT.0.2D0.OR.YI(7).GT.0.15D0.OR.Y1(8).GT.5D-5) Z=O0D0

RETURN

END

SUBROUTINE PARIN1

IMPLICIT REAL*8(A-H,O-Z)

REAL*8 KIJ

COMMON/INTER1/EIJ(19,19),UIJ(19,19),KIJ(19,19),GIJ(19,19)

DO 1 I=1,19

DO 1 J=1,19

EIJ(I,J)=1D0

UIJ(I,J)=1D0

KIJ(I,J)=1D0

1 GIJ(I,J)=1D0

EIJ(1,6)=0.97164D0

UIJ(1,6)=0.886106D0

KIJ(1,6)=1.00363D0

EIJ(1,7)=0.960644D0

UIJ(1,7)=0.963827D0

KIJ(1,7)=0.995933D0

GIJ(1,7)=0.807653D0

EIJ(1,3)=0.99605D0

UIJ(1,3)=1.02396D0

EU(1,17)=1.17052D0

UIJ(1,17)=1.15639D0

KIJ(1,17)=1.02326D0

GIJ(1,17)=1.95731D0

EIJ(1,18)=0.990126D0

EIJ(1,5)=1.01953D0

EIJ(1,4)=0.995474D0

UIJ(1,4)=1.02128D0

EIJ(1,10)=1.00235D0

EIJ(1,9)=1.00305D0

EIJ(1,11)=1.01293D0

EIJ(1,12)=0.999758D0

EIJ(1,13)=0.988563D0

EIJ(6,7)=1.02274D0

UIJ(6,7)=0.835058D0

KIJ(6,7)=0.982361D0

GIJ(6,7)=0.982746D0

EIJ(2,6)=0.97012D0

UIJ(2,6)=0.816431D0

KIJ(2,6)=1.00796D0

EIJ(3,6)=0.945939D0

UIJ(3,6)=0.915502D0

EIJ(6,17)=1.08632D0

UIJ(6,17)=0.408838D0

KIJ(6,17)=1.03227D0

EIJ(6,18)=1.00571D0

EIJ(5,6)=0.946914D0

EIJ(4,6)=0.973384D0

UIJ(4,6)=0.993556D0

EIJ(6,10)=0.95934D0

EIJ(6,9)=0.94552D0

EIJ(6,11)=0.93788D0

EIJ(6,12)=0.935977D0

EIJ(6,13)=0.933269D0

EIJ(2,7)=0.925053D0

UIJ(2,7)=0.96987D0

KIJ(2,7)=1.00851D0

GIJ(2,7)=0.370296D0

EIJ(3,7)=0.960237D0

EIJ(7,17)=1.28179D0

EIJ(7,18)=1.5D0

UIJ(7,18)=0.9D0

EIJ(5,7)=0.906849D0

EIJ(4,7)=0.897362D0

EIJ(7,10)=0.726255D0

EIJ(7,9)=0.859764D0

EIJ(7,11)=0.766923D0

EIJ(7,12)=0.782718D0

EIJ(7,13)=0.805823D0

EIJ(2,3)=1.03502D0

UIJ(2,3)=1.0805D0

KIJ(2,3)=1.00046D0

EIJ(2,17)=1.16446D0

UIJ(2,17)=1.61666D0

KIJ(2,17)=1.02034D0

UIJ(2,5)=1.25D0

EIJ(2,4)=1.01306D0

UIJ(2,4)=1.25D0

UIJ(2,10)=1.25D0

EIJ(2,9)=1.00532D0

UIJ(2,9)=1.25D0

EIJ(3,17)=1.034787D0

EIJ(3,4)=1.0049D0

EIJ(17,18)=1.1D0

EIJ(5,17)=1.3D0

EIJ(4,17)=1.3D0

RETURN

END

SUBROUTINE PARMI1

IMPLICIT REAL*8(A-H,O-Z)

REAL*8 KI,KIJ,KM

INTEGER GN,QN,FN

DIMENSION EIJM(19,19),GIJM(19,19)

COMMON/Y1/Y(19)/NC1/NC/EFI/EI(19),KI(19),GI(19),QI(19),FI(19)

*/INTER1/EIJ(19,19),UIJ(19,19),KIJ(19,19),GIJ(19,19)

*/KM/KM/COEF1/B1(13),C1(53)/AN/AN(53)

*/GQFN/GN(53),QN(53),FN(53)/UN/UN(53)

DO 1 I=1,NC

EIJM(I,I)=EI(I)

GIJM(I,I)=GI(I)

DO 1 J=1,NC

IF(I.GE.J) GO TO 1

EIJM(I,J)=EIJ(I,J)*(EI(I)*EI(J))**.5

GIJM(I,J)=GIJ(I,J)*(GI(I)+GI(J))/2.

1 CONTINUE

KM=0D0

UM=0D0

KM=0D0

UM=0D0

GM=0D0

QM=0D0

FM=0D0

DO 3 I=1,NC

KM=KM+Y(I)*KI(I)**2.5

UM=UM+Y(I)*EI(I)**2.5

GM=GM+Y(I)*GI(I)

QM=QM+Y(I)*QI(I)

3 FM=FM+Y(I)**2*FI(I)

KM=KM*KM

UM=UM*UM

DO 5 I=1,NC-1

DO 5 J=I+1,NC

UM=UM+2.*Y(I)*Y(J)*(UIJ(I,J)**5-1D0)*(EI(I)*EI(J))**2.5

GM=GM+2.*Y(I)*Y(J)*(GIJ(I,J)-1D0)*(GI(I)+GI(J))

5 KM=KM+2.*Y(I)*Y(J)*(KIJ(I,J)**5-1D0)*(KI(I)*KI(J))**2.5

KM=KM**.6

UM=UM**.2

DO 7 N=1,13

B1(N)=0D0

DO 9 I=1,NC

9 В1(N)=B1(N)+Y(I)*Y(I)(GIJM(I,I)+ 1D0-GN(N))**GN(N)*

*(QI(I)*QI(I)+1D0-QN(N))**QN(N)*(FI(I)+1D0-FN(N))*FN(N)*

*EIJM(I,I)"UN(N)*KI(I)*KI(I)*KI(I)

DO 11 I=1,NC-1

DO 11 J=I+1,NC

11 В1(N)=B1(N)+2.*Y(I)*Y(J)(GIJМ(I,J)+1D0-GN(N))**GN(N)*

*(QI(I)*QI(J)+1D0-QN(N))**QN(N)*((FI(I)*FI(J))**.5+

1D0-FN(N))**FN(N)*EIJM(I,J)**UN(N)*(KI(I)*KI(J)**1.5

7 CONTINUE

DO 13 N=8,53

13 C1(N)=AN(N)*(GM+1D0-GN(N))**GN(N)*(QM**2+1D0-QN(N))**

*QN(N)*(FM+1D0-FN(N))**FN(N)*UM**UN(N)

RETURN

END

SUBROUTINE PHASE1

IMPLICIT REAL*8(A-H,O-Z)

COMMON/Z/Z/RM/RM/T/T/P/P/AI1/AO,A1/AN/AN(53)

*/COEF1/B1(13),C1(53)/COEF2/B,C(53)/UN/UN(53)

CALL PCONT1(P,T)

IF(Z.EQ.0D0) GO TO 134

B=0D0

DO 1 N=1,13

1 B=B+AN(N)/T**UN(N)*B1(N)

DO 3 N=8,53

3 C(N)=C1(N)/T**UN(N)

PR=P/5.

RO=9D3*P/(RM*T*(1.1*PR+0.7D0))

CALL FUN1(RO)

Z=1D0+AO

134 RETURN

END

С Подпрограмма, реализующая итерационный процесс определения

С плотности из уравнения состояния (метод Ньютона)

SUBROUTINE FUN1(X)

IMPLICIT REAL*8(A-H,O-Z)

COMMON/P/P/RM/RM/T/T/AI1/AO,A1

ITER=1

1 CONTINUE

CALL COMPL1(X)

Z=1.D0+AO

FX= 1 .D6*(P-(1.D-3*RM*T*Z*X))

F= 1 .D3*RM*(1.D0+A1)

DR=FX/F

X=X+DR

IF(ITER.GT.10) GO TO 4

ITER=ITER+1

IF(DABS(DR/X).GT.1.D-6) GO TO 1

4 CALL COMPL1(X)

RETURN

END

SUBROUTINE PCONT1(P,T)

IMPLICIT REAL*8(A-H,O-Z)

COMMON/Z/Z

Z=-1D0

IF(T.LT.250D0.OR.T.GT.340D0)Z=0D0

IF(P.LE.0D0.OR.P.GT.12D0) Z=0D0

RETURN

END

SUBROUTINE COMPL1(RO)

IMPLICIT REAL*8(A-H,O-Z)

REAL*8 KM

INTEGER BN,CN

COMMON/KM/KM/COEF2/B,C(53)/BCKN/BN(53),CN(53),KN(53)/AI1/AO,A1

ROR=KM*RO

S1=0D0

S2=0D0

S3=0D0

DO 1 N=8,53

EXP=DEXP(-CN(N)*ROR**KN(N))

IF(N.LE.13) S1=S1+C(N)

S2=S2+C(N)*(BN(N)-CN(N)*KN(N)*ROR**KN(N))*ROR**BN(N)*EXP 1

S3=S3+C(N)*(-CN(N)*KN(N)**2*KM*ROR**(KN(N)-1)*ROR**BN(N)*

*EXP+(BN(N)-CN(N)*KN(N)*ROR**KN(N))*BN(N)*KM*ROR**(BN(N)-1)*

*EXP-(BN(N)-CN(N)*KN(N)*ROR**KN(N))*ROR**BN(N)*EXP*CN(N)*KN(N)*

*KM*ROR**(KN(N)-1))AO1=B*RO-ROR*S1

AO=AO1+S2

A1=AO+AO1+RO*S3

RETURN

END

BLOCK DATA DCAGA8

IMPLICIT REAL*8(A-H,O-Z)

REAL*8 KD

INTEGER BN,CN,GN,QN,FN

COMMON/EFD/ED(19),KD(19),GD(19),QD(19),FD(19)

*/BCKN/BN(53),CN(53),KN(53)/UN/UN(53)

*/AN/AN(53)/GQFN/GN(53),QN(53),FN(53)

DATA ED/151.3183D0,244.1667D0,298.1183D0,337.6389D0,324.0689D0,

*99.73778D0,241.9606D0,296.355D0,370.6823D0,365.5999D0,

*402.8429D0,427.5391D0,450.6472D0,472.1194D0:488.7633D0,

*2.610111D0,26.95794D0,105.5348D0,122.7667D0/

DATA KD/.4619255D0,.5279209D0,.583749D0,.6341423D0,.6406937D0,

*.4479153D0,.4557489D0,.4618263D0,.6798307D0,.6738577D0,

*.7139987D0,.7503628D0,.7851933D0,.8157596D0,.8389542D0,

*.3589888D0,.3514916D0,.4533894D0,.4186954D0/

DATA GD/0D0,.0793D0,.141239D0,.281835D0,.256692D0,.027815D0,

*.189065D0,.0885D0,.366911D0,.332267D0,.432254D0,.512507D0,

*.576242D0,.648601D0,.716574D0,0D0,.034369D0,.038953D0,.021D0/

DATA QD/6*0D0,.69D0,12*0D0/,FD/16*0D0,1D0,2*0D0/

DATA AN/.1538326D0,1.341953D0,-2.998583D0,-.04831228D0,

*.3757965D0,-1.589575D0,-.05358847D0,2.29129D-9,1576724D0,

*-.4363864D0,-.04408159D0,-.003433888D0,.03205905D0,.02487355D0, -

*.07332279D0,-.001600573D0,.6424706D0,-.4162601D0,-.06689957D0,

*.2791795D0,-.6966051D0,-.002860589D0,-.008098836D0,3.150547D0,

*.007224479D0,-.7057529D0,.5349792D0,-.07931491D0-1.418465D0,

*-5.99905D-17,.1058402D0,.03431729D0,-.007022847D0,.02495587D0,

*.04296818D0,.7465453D0,-.2919613D0,7.294616D0,-9.936757D0,

*-.005399808D0,-.2432567D0,.04987016D0,.003733797D0,1.874951D0,

*.002168144D0,-.6587164D0,.000205518D0,.009776195D0,-.02048708D0,

*.01557322D0,.006862415D0,-.001226752D0,.002850906D0/

DATA BN/13*1,9*2,10*3,7*4,5*5,2*6,2*7,3*8,2*9/

DATA CN/7*0,6*1,2*0,7*1,0,9*1,2*0,5*1,0,4*1,0,1,0,6*1/

DATA KN/7*0,3,3*2,2*4,2*0,3*2,4*4,0,2*1,2*2,2*3,3*4,2*0,3*2,

*2*4,0,2*2,2*4,0,2,0,2,1,4*2/

DATA UN/0D0,.5D0,1D0,3.5D0,-.5D0,4.5D0,.5D0,-6D0,2D0,3D0,2*2D0,

*11D0,-.5D0,.5D0,0D0,4D0,6D0,21D0,23D0,22D0,-1D0,-.5D0,7D0,-1D0,

*6D0,4D0,1D0,9D0,-13D0,21D0,8D0,-.5D0,0D0,2D0,7D0,9D0,22D0,23D0,

*1D0,9D0,3D0,8D0,23D0,1.5D0,5D0,-.5D0,4D0,7D0,3D0,0D0,1D0,0D0/

DATA GN/4*0,2*1,13*0,1,3*0,1,2*0,3*1,16*0,1,2*0,1,0,1,2*0/

DATA QN/6*0,1,3*0,1,9*0,1,0,1,8*0,1,4*0,1,4*0,1,0,1,2*0,1,5*0,1/

DATA FN/7*0,1,13*0,1,2*0,1,4*0,1,23*0/

END

C ***********************************************************

С * *

С * Подпрограмма расчета коэффициента сжимаемости природного *

С * газа по уравнению состояния ВНИЦ СМВ. *

С * *

C ***********************************************************

SUBROUTINE VNIC(ICALC)

IMPLICIT REAL*8(A-H,O-Z)

REAL*8 LIJ(8,8)

DIMENSION VC(8),TC(8),PII(8),DIJ(8,8)

COMMON/PARCD/VCD(8),TCD(8),PIID(8)/ABIJ/AIJ(10,8),BIJ(10,8)

*/B/B(10,8)/RM/RM/Y/Y(8)/BM/BM(8)/NI/NI(8)/NC/NC/Z/Z

RM=8.31451DO

IF(ICALC.NE.1) GO TO 1

CALL COMPON

IF(Z.EQ.0D0) GO TO 133

CALL DDIJ(DIJ,LIJ)

DO 75 I=1,NC

TC(I)=TCD(NI(I))

VC(I)=BM(I)/VCD(NI(I))

PII(I)=PIID(NI(I))

DO 123 J=1,NC

IF(I.GE.J) GO TO 123

DIJ(I,J)=DIJ(NI(I),NI(J))

LIJ(I,J)=LIJ(NI(I),NI(J))

123 CONTINUE

75 CONTINUE

CALL PARMIX(DIJ,LIJ,TC,VC,PII,PIM)

DO 27 I=1,10

DO 27 J=l,8

27 B(I,J)=AIJ(I,J)+BIJ(I,J)*PIM

1 CALL PHASE

133 RETURN

END

SUBROUTINE COMPON

IMPLICIT REAL*8(A-H,O-Z)

DIMENSION BMI(25),ROI(8),GI(8),YI(25)

COMMON/Y/Y(8)/BMM/BMM/BM/BM(8)/YI/YC(25)/NI/NI(8)/NC/NC/NPR/NPR

DATA BMI/16.043D0,30.07D0,44.097D0,2*58.123D0,28.0135D0,

*44.01D0,34.082D0,26.038D0,28.054D0,42.081D0,3*72.15D0,

*86.177D0,78.114D0,100.204D0,92.141D0,114.231D0,128.259D0,

*142.286D0,4.0026D0,2.0159D0,28.01D0,31.9988D0/

DATAR0I/0.6682D0,1.2601D0,1.8641D0,2.4956D0,2.488D0,

*1.1649D0,1.8393D0,1.4311D0/

DO 100 I=1,25

100 YI(I)=YC(I)

IF(NPR.EQ.1) GO TO 333

BMM=0D0

DO 3333 I=1,25

3333 ВММ=ВММ+YI(I)*ВМI(I)

333 YS=0D0

DO 55 I=9,25

YS=YS+YI(I)

55 CONTINUE

YS1=0D0

DO 67 I=12,21

67 YS1=YS1+YI(I)

YS2=0D0

DO 69 1=22,25

69 YS2=YS2+YI(I)

YI(2)=YI(2)+YI(9)+YI(10)

YI(3)=YI(3)+YI(11)

YI(4)=YI(4)+YS1

YS3=YI(4)+YI(5)

IF(NPR.EQ.1.AND.YI(5).LT.0.01D0.AND.YS3.LT.0.03D0) YI(4)=YS3

IF(NPR.EQ.1.AND.YI(5).LT.0.01D0.AND.YS3.LT.0.03D0) YI(5)=0D0

IF(NPR.EQ.0.AND.Y1(5).LT.0.01D0.AND.YS3.LE.0.03D0) YI(4)=YS3

IF(NPR.EQ.0.AND.YI(5).LT.0.01D0.AND.YS3.LE.0.03D0)YI(5)=0D0

YI(6)=YI(6)+YS2

IF(NPR.EQ.0) GO TO 555

ROM=0D0

DO 7 I=1,8

7 ROM=ROM+YI(I)*ROI(I)

DO 9 I=1,8

9 GI(I)=YI(I)*ROI(I)/ROM

SUM=0D0

DO 11 1=1,8

11 SUM=SUM+GI(I)/BMI(I)

SUM=1./SUM

DO 13 I=1,8

13 YI(I)=GI(I)*SUM/BMI(I)

555 NC=0

YSUM=0D0

DO 155 I=1,8

IF(YI(I).EQ.0D0) GO TO 155

NC=NC+1

NI(NC)=I

Y(NC)=YI(I)

YSUM=YSUM+Y(NC)

BM(NC)=BMI(I)

155 CONTINUE

CALL MOLDOL(YI,YS)

DO 551 I=1,NC

551 Y(I)=Y(I)/YSUM

RETURN

END

SUBROUTINE MOLDOL(YI,YS)

IMPLICIT REAL*8(A-H,O-Z)

DIMENSION YI(25)

COMMON/Z/Z

Z=-1D0

IF(YI(1).LT.0.65D0.OR.YI(2).GT.0.15D0.OR.YI(3).GT.0.035D0.OR.

*YI(4).GT.0.015D0.OR.YI(5).GT.0.015D0.OR.YS.GT.0.01D0)Z=0D0

IF(YI(6).GT.0.2D0.OR.YI(7).GT.0.15D0.OR.YI(8).GT.0.3D0)Z=0D0

RETURN

END

SUBROUTINE DDIJ(DIJ,LIJ)

IMPLICIT REAL-8(A-H,O-Z)

REAL*8 LIJ(8,8)

DIMENSION DIJ(8,8)

DO 1 I=1,8

DO 1 J=l,8

LIJ(I,J)=0.D0

1 DIJ(I,J)=0.D0

DIJ(1,2)=0.036D0

DIJ(1,3)=0.076D0

DIJ(1,4)=0.121D0

DIJ(1,5)=0.129D0

DIJ(1,6)=0.06D0

DIJ(1,7)=0.074D0

DIJ(2,6)=0.106D0

DIJ(2,7)=0.093D0

DIJ(6,7)=0.022D0

DIJ(1,8)=0.089D0

DIJ(2,8)=0.079D0

DU(6,8)=0.211D0

DIJ(7,8)=0.089D0

LIJ(1,2)=-0.074D0

LIJ(1,3)=-0.146D0

LIJ(1,4)=-0.258D0

LIJ(1,5)=-0.222D0

LIJ(1,6)=-0.023D0

LIJ(1,7)=-0.086D0

LIJ(6,7)=-0.064D0

LIJ(7,8)=-0.062D0

RETURN

END

SUBROUTINE PARMIX(DIJ,LIJ,TC,VC,PII,PIM)

IMPLICIT REAL*8(A-H,O-Z)

REAL*8 LIJ(8,8)

DIMENSION Y(8),DIJ(8,8),VCIJ(8,8),TCIJ(8,8),V13(8),TC(8),VC(8),

*PII(8),PIIJ(8,8)

COMMON/PARCM/TCM,VCM/Y/Y/NC/NC/PCM/PCM

DO 1 I=1,NC

1 V13(I)=VC(I)**(1.DO/3.DO)

DO 3 I=1,NC

VCIJ(I,I)=VC(I)

PIIJ(I,I)=PII(I)

TCIJ(I,I)=TC(I)

DO 3 J=1,NC

IF(I.GE.J) GO TO 3

VCIJ(I,J)=(1.DO-LIJ(I,J))*((V13(I)+V13(J))/2.)**3

PIIJ(I,J)=(VC(I)*PII(I)+VC(J)*PII(J))/(VC(I)+VC(J))

TCU(I,J)=(1.D0-DIJ(I,J))*(TC(I)*TC(J))**0.5

VCIJ(J,I)=VCIJ(I,J)

PIIJ(J,I)=PIIJ(I,J)

TCIJ(J,I)=TCIJ(I,J)

3 CONTINUE

VCM=0.D0

PIM=0.D0

TCM=0.D0

DO 5 I=1,NC

DO 5 J=1,NC

VCM=VCM+Y(I)*Y(J)*VCIJ(I,J)

PIM=PIM+Y(I)*Y(J)*VCIJ(I,J)*PIIJ(I,J)

5 TCM=TCM+Y(I)*Y(J)*VCIJ(I,J)*TCIJ(I,J)**2

PIM=PIM/VCM

TCM=(TCM/VCM)**0.5

PCM=8.31451D-3*(0.28707D0-0.05559*PIM)*TCM/VCM

RETURN

END

SUBROUTINE PHASE

IMPLICIT REAL*8(A-H,O-Z)

COMMON/Z/Z/RM/RM/T/T/P/P/PCM/PCM/AI/AO,A1

IF(T.LT.250D0.OR.T.GT.340D0.OR.P.LE.0D0.OR.P.GT.12D0) THEN

Z=0D0

GO TO 134

ENDIF

PR=P/PCM

RO=9D3*P/(RM*T*(1.1*PR+0.7D0))

CALL FUN(RO)

CALL OMTAU(RO,T)

IF(Z.EQ.0D0) GO TO 134

Z=1.D0+AO

134 RETURN

END

С Подпрограмма, реализующая итерационный процесс определения

С плотности из уравнения состояния (метод Ньютона)

SUBROUTINE FUN(X)

IMPLICIT REAL*8(A-H,О-Z)

COMMON/P/P/RM/RM/T/T/AI/AO,A1

ITER=1

1 CONTINUE

NPRIZ=0

IF(ITER.NE.l) NPRIZ=1

CALL COMPL(X,T,NPRIZ)

Z=1.D0+AO

FX=1.D6*(P-(1.D-3*RM*T*Z*X))

F=1.D3*RM*T*(1.D0+A1)

DR=FX/F

X=X+DR

IF(ITER.GT.10) GO TO 4

ITER=ITER+1

IF(DABS(DR/X).GT.1.D-6) GO TO 1

4 CALL COMPL(X,T,NPRIZ)

RETURN

END

SUBROUTINE OMTAU(RO,T)

IMPLICIT REAL*8(A-H,O-Z)

COMMON/PARCM/TCM,VCM/Z/Z

Z=-1D0

TR=T/TCM

ROR=RO*VCM

IF(TR.LT.1.05D0) Z=0D0

IF(ROR.LT.0.D0.OR.ROR.GT.3.D0) Z=0D0

RETURN

END

SUBROUTINE COMPL(RO,T,NPRIZ)

IMPLICIT REAL*8(A-H,O-Z)

DIMENSION B(10,8),BK(10)

COMMON/PARCM/TCM,VCM/B/B/AI/AO,A1

IF(NPRIZ.NE.0) GO TO 7

TR=T/TCM

DO 1 I=1,10

BK(I)=0

DO 1 J=1,8

1 BK(I)=BK(I)+B(I,J)/TR**(J-1)

7 ROR=RO*VCM

AO=0.D0

A1=0.D0

DO 33 I=1,10

D=BK(I)*ROR**I

AO=AO+D

33 A1=A1+(I+1)*D

RETURN

END

BLOCK DATA BDVNIC

IMPLICIT REAL*8(A-H,O-Z)

COMMON/PARCD/VCD(8),TCD(8),PIID(8)/ABIJ/AIJ(10,8),BIJ(10,8)

DATA TCD/190.67D0,305.57D0,369.96D0,425.4D0,407.96D0,

*125.65D0,304.11D0,373.18D0/

DATA VCD/163.03D0,205.53D0,218.54D0,226.69D0,225.64D0,

*315.36D0,466.74D0,349.37D0/

DATA PIID/0.0006467D0,0.1103D0,0.1764D0,0.2213D0,0.2162D0,

*0.04185D0,0.2203D0,0.042686D0/

DATA AIJ/.6087766D0,-.4596885D0,1.14934D0,-.607501D0,

*-.894094D0,1.144404D0,-.34579D0,-.1235682D0,.1098875D0,

*-.219306D-1,-1.832916D0,4.175759D0,-9.404549D0,10.62713D0,

*-3.080591D0,-2.122525D0,1.781466D0,-.4303578D0,-.4963321D-1,

*.347496D-1,1.317145D0,-10.73657D0,23.95808 D0,-31.47929D0,

* 18.42846D0,-4.092685D0,-. 1906595D0,.4015072D0,-.1016264D0,