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谁有美国标准大气模型 1976 跪求呀 已有3人参与
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c 1976年美国标准大气 PROGRAM STD DIMENSION HBASE(9) DATA HBASE/ 0.,1.1E4,2.E4,3.2E4,4.7E4,5.1E4,7.1E4,2*84852.0/ PRINT 1002 1002 FORMAT(1H1,1X,'STANDARD ATMOSPHERE LAYERS - ', 2 2X,' FROM US STANDARD ATMOSPHERE, 1976 ',/) PRINT 1008 PRINT 1009 1008 FORMAT(10X,' P Z T TGRAD 2 DENSITY') 1009 FORMAT(10X,' MB METERS FEET DEG C DEG/M 2 KG/M3') HMT=HBASE(1) CALL STDZ2P(P,HMT, 0, TCENT, DENS) DO1I= 2,8 PP=P PHMT=HMT PTCENT=TCENT PDENS=DENS HMT=HBASE(I) CALL STDZ2P(P,HMT, 0, TCENT, DENS) TGRAD=(TCENT-PTCENT)/(HMT-PHMT) HFT=PHMT/.3048 WRITE (6,1007)PP,PHMT,HFT,PTCENT,TGRAD,PDENS,PP 1007 FORMAT(10X,F9.4,2F12.2,F10.2,F10.5,F20.8,E16.8) 1 CONTINUE TGRAD=0. HFT=HMT/.3048 WRITE (6,1007)P,HMT,HFT,TCENT,TGRAD,DENS,P C C DO P2Z SUBROUTINE PRINT 1003 1003 FORMAT(1H1,1X,'PRINT FOR PRESSURE LEVELS') PRINT 1005 PRINT 1006 PINC=50. P=1000. 10 CALL STDP2Z(P,Z,ZFT,TCENT,DENS) PRINT 1004,P,Z,ZFT,TCENT,DENS 1004 FORMAT(10X,F7.2,2F10.0,F10.2,F16.6) 1005 FORMAT(10X,' P Z T DENSITY') 1006 FORMAT(10X,' MB METERS FEET DEG C KG/M3') IF(P.LE.100.) PINC=10. IF(P.LE.10.)PINC=1. IF(P.LE.1.)PINC=.1 P=P-PINC IF(P.GE..09) GO TO 10 END SUBROUTINE STDZ2P(P,H1,L,TCENT,RHO) C C COMPUTES PRESSURE, TEMPERATURE, AND DENSITY VALUES FROM INPUT HEIGHTS C BASED ON US STANDARD ATMOSPHERE, 1976 C VALUES NOT VALID ABOVE 84852 M. C C INPUT C H1 - HEIGHT IN FEET OR METERS C L - UNITS FLAG - 0=METERS, 1=FEET C OUTPUT C P - PRESSURE IN MB C TCENT - TEMPERATURE IN DEG C C RHO - DENSITY IN KG/M3 C DIMENSION HBASE(10),HTOP(10),TB(10),GRAD(10),ABS(10) DIMENSION PB(11),RB(10) DATA HBASE/ 0.,1.1E4,2.E4,3.2E4,4.7E4,5.1E4,7.1E4,3*84852.0/ DATA HTOP /1.1E4,2.E4,3.2E4,4.7E4,5.1E4,7.1E4,4*84852.0/ DATA TB / 15.,2*-56.5,-44.5,2*-2.5,-58.5,3*-86.2/ DATA GRAD/-.0065,0.,.001,.0028,0.,-.0028,-.002,3*0./ DATA CHECK/0./ C H1 IS ALTITUDE, IF IN METERS SET L .LE. 0. IF IN FEET SET L .GE. 1 C P IS PRESSURE IN MB. TCENT IS TEMP CELSIUS. RHO IS DENSITY IN KG/M**3 C IF(CHECK.NE.0.) GO TO 16 ABSZ = 273.15 PZERO=1013.250 G=980.665 R = 83143200./28.9644 PB(1) = PZERO DO 3 I=1,8 ABS(I) = TB(I) + ABSZ 3 CONTINUE DO 15 I=1,8 IF (GRAD(I) .EQ. 0) GO TO 10 C HERE FOR TEMP GRADIENT NOT ZERO 5 PB(I+1) = PB(I)*((ABS(I+1)/ABS(I))**(100.*G/(-GRAD(I)*R))) GO TO 12 C HERE FOR TEMP GRADIENT ZERO 10 PB(I+1) = PB(I)*2.7182818**((-100.*G/(R*ABS(I)))*(HTOP(I)-HBASE(I) X )) 12 RB(I) = 1000.*PB(I)/(R*ABS(I)) * 1000. 15 CONTINUE CHECK=10. 16 CONTINUE C IF(L. LT.1) GO TO 30 C H = H1*.3048 GO TO 4 30 H = H1 4 CONTINUE C FIND THE ATMOSPHERIC LAYER WE ARE IN 35 DO 55 I = 1,8 IF (H .GT. HBASE(I+1)) GO TO 55 37 IF (GRAD(I)) 39,43,39 C TEMP GRADIENT NOT ZERO 39 P= PB(I)*((H-HBASE(I))*GRAD(I)/ABS(I)+1)**(-100.*G/(GRAD(I)*R)) GO TO 45 C ISOTHERMAL LAYER 43 P= PB(I)*EXP((H-HBASE(I))*(-G)/(.01*R*ABS(I))) 45 T = ABS(I) + GRAD(I)*(H-HBASE(I)) TCENT = T - ABSZ RHO = 1.E6* P/(R*T) RETURN 55 CONTINUE 56 WRITE(6,98)H 98 FORMAT(' STDATM - ALTITUDE OUT OF RANGE ',F12.2,//) END SUBROUTINE STDP2Z(P,H,HFT,TCENT,DENS) C C COMPUTES HEIGHT, TEMPERATURE, AND DENSITY VALUES FROM INPUT PRESSURES C BASED ON US STANDARD ATMOSPHERE, 1976 C VALUES NOT VALID ABOVE 84852 KM. C C INPUT C P - PRESSURE IN MB C OUTPUT C H - HEIGHT IN METERS C HFT - HEIGHT IN FEET C TCENT - TEMPERATURE IN DEG C C DENS - DENSITY IN KG/M3 C DIMENSION HBASE(10),HTOP(10),TB(10),GRAD(10),ABS(10),PB(10),RB(10) DATA HBASE/ 0.,1.1E4,2.E4,3.2E4,4.7E4,5.1E4,7.1E4,3*84852.0/ DATA HTOP /1.1E4,2.E4,3.2E4,4.7E4,5.1E4,7.1E4,4*84852.0/ DATA GRAD/-.0065,0.,.001,.0028,0.,-.0028,-.002,3*0./ DATA ABS/288.15,216.65,216.65,228.65,270.65,270.65, 2 214.65,186.95,2*0./ DATA PB/1013.25,0.22632064E+03,0.54748887E+02,0.86801870E+01, 2 0.11090631E+01,0.66938874E+00,0.39564205E-01,0.37338360E-02, 3 2*0./ ABSZ = 273.15 G=980.665 R = 83143200./28.9644 IF(P .GT. PB(1)) GO TO 56 35 DO 55 I = 1,8 IF (P .GE. PB(I+1)) GO TO 37 55 CONTINUE 56 PRINT 1001,P 1001 FORMAT (' STDATM- PRESSURE OUT OF EXCEEDED ',F8.2) 37 IF (GRAD(I)) 39,43,39 C TEMP GRADIENT NOT ZERO 39 H = ABS(I)/(-GRAD(I)) *(1. -(P/PB(I))**(-GRAD(I)*R/(100.*G))) X + HBASE(I) GO TO 45 C ISOTHERMAL LAYER 43 H = HBASE(I) + .01*R*ABS(I)/G *(ALOG(PB(I)/P)) 45 T = ABS(I) + GRAD(I)*(H-HBASE(I)) TCENT = T - ABSZ DENS = 1000*1000.*P/(R*T) HFT = H/.3048 RETURN END |
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