| [57] | 1 | subroutine moldiffcoeff(dij) |
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| 2 | |
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| 3 | IMPLICIT NONE |
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| 4 | c======================================================================= |
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| 5 | c subject: |
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| 6 | c -------- |
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| 7 | c Computing molecular diffusion coefficients |
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| 8 | c following Nair 94 (pg 131) |
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| 9 | c author: MAC 2002 |
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| 10 | c ------ |
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| 11 | c |
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| 12 | c======================================================================= |
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| 13 | #include "dimensions.h" |
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| 14 | #include "dimphys.h" |
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| 15 | #include "callkeys.h" |
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| 16 | #include "comdiurn.h" |
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| 17 | #include "chimiedata.h" |
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| 18 | #include "tracer.h" |
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| 19 | #include "conc.h" |
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| 20 | |
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| 21 | c----------------------------------------------------------------------- |
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| 22 | c Input/Output |
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| 23 | c ------------ |
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| 24 | INTEGER nq, n, nn, i |
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| 25 | integer i_co2, i_co, i_o2, i_h2, i_h2o, i_h2o2, i_n2, i_o3, |
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| 26 | $ i_o1d, i_o, i_h, i_oh, i_ho2, i_ar |
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| 27 | integer g_co2, g_co, g_o2, g_h2, g_h2o, g_h2o2, |
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| 28 | $ g_o1d, g_o, g_h, g_oh, g_ho2, g_o3, g_n2, g_ar |
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| 29 | integer gcmind(ncomptot) |
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| 30 | |
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| 31 | real dnh |
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| 32 | real dij(ncomptot,ncomptot) |
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| 33 | |
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| 34 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 35 | c tracer numbering in the gcm |
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| 36 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 37 | c |
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| 38 | g_co2 = nqchem_min |
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| 39 | g_co = nqchem_min + 1 |
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| 40 | g_o = nqchem_min + 2 |
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| 41 | g_o1d = nqchem_min + 3 |
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| 42 | g_o2 = nqchem_min + 4 |
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| 43 | g_o3 = nqchem_min + 5 |
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| 44 | g_h = nqchem_min + 6 |
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| 45 | g_h2 = nqchem_min + 7 |
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| 46 | g_oh = nqchem_min + 8 |
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| 47 | g_ho2 = nqchem_min + 9 |
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| 48 | g_h2o2 = nqchem_min + 10 |
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| 49 | g_n2 = nqchem_min + 11 |
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| 50 | g_ar = nqchem_min + 12 |
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| 51 | g_h2o = nqmx |
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| 52 | |
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| 53 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 54 | c tracer numbering in the molecular diffusion |
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| 55 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 56 | c Atomic oxygen must always be the LAST species of the list as |
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| 57 | c it is the dominant species at high altitudes. |
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| 58 | i_co = 1 |
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| 59 | i_n2 = 2 |
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| 60 | i_o2 = 3 |
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| 61 | i_co2 = 4 |
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| 62 | i_h2 = 5 |
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| 63 | i_h = 6 |
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| 64 | i_oh = 7 |
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| 65 | i_ho2 = 8 |
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| 66 | i_h2o = 9 |
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| 67 | i_h2o2 = 10 |
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| 68 | i_o1d = 11 |
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| 69 | i_o3 = 12 |
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| 70 | i_ar = 13 |
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| 71 | i_o = 14 |
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| 72 | c |
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| 73 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 74 | c array to relate local indexes to gcm indexes |
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| 75 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 76 | |
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| 77 | gcmind(i_co) = g_co |
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| 78 | gcmind(i_n2) = g_n2 |
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| 79 | gcmind(i_o2) = g_o2 |
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| 80 | gcmind(i_co2) = g_co2 |
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| 81 | gcmind(i_h2) = g_h2 |
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| 82 | gcmind(i_h) = g_h |
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| 83 | gcmind(i_oh) = g_oh |
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| 84 | gcmind(i_ho2) = g_ho2 |
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| 85 | gcmind(i_h2o) = g_h2o |
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| 86 | gcmind(i_h2o2)= g_h2o2 |
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| 87 | gcmind(i_o1d) = g_o1d |
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| 88 | gcmind(i_o3) = g_o3 |
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| 89 | gcmind(i_o) = g_o |
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| 90 | gcmind(i_ar) = g_ar |
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| 91 | c |
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| 92 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 93 | |
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| 94 | |
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| 95 | dij(i_h2,i_co) = 0.0000651 |
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| 96 | dij(i_h2,i_n2) = 0.0000674 |
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| 97 | dij(i_h2,i_o2) = 0.0000697 |
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| 98 | dij(i_h2,i_co2) = 0.0000550 |
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| 99 | dij(i_h2,i_h2) = 0.0 |
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| 100 | dij(i_h2,i_h) = 0.0 |
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| 101 | dij(i_h2,i_oh) = 0.0 !0003 |
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| 102 | dij(i_h2,i_ho2) = 0.0 !0003 |
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| 103 | dij(i_h2,i_h2o) = 0.0 !0003 |
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| 104 | dij(i_h2,i_h2o2) = 0.0 !0003 |
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| 105 | dij(i_h2,i_o1d) = 0.0 |
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| 106 | dij(i_h2,i_o3) = 0.0 !0003 |
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| 107 | dij(i_h2,i_o) = 0.0 |
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| 108 | dij(i_h2,i_ar) = 0.0 |
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| 109 | |
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| 110 | c dij(i_h,i_o) = 0.0000144 |
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| 111 | dij(i_h,i_o) = 0.000114 |
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| 112 | |
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| 113 | print*,' COEFF CALC' |
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| 114 | open(56,file='coeffs.dat',status='unknown') |
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| 115 | do n=1,ncomptot |
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| 116 | if (dij(i_h2,n).gt.0.0) then |
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| 117 | do nn=n,ncomptot |
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| 118 | dij(nn,n)=dij(i_h2,n) |
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| 119 | & *sqrt(mmol(g_h2)/mmol(gcmind(nn))) |
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| 120 | if(n.eq.nn) dij(nn,n)=1.0 |
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| 121 | dij(n,nn)=dij(nn,n) |
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| 122 | enddo |
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| 123 | endif |
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| 124 | if (dij(i_h2,n).eq.0.0) then |
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| 125 | dnh=dij(i_h,i_o)*sqrt(mmol(g_o)/mmol(gcmind(n))) |
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| 126 | do nn=n,ncomptot |
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| 127 | dij(nn,n)=dnh*sqrt(mmol(g_h)/mmol(gcmind(nn))) |
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| 128 | if(n.eq.nn) dij(nn,n)=1.0 |
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| 129 | dij(n,nn)=dij(nn,n) |
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| 130 | enddo |
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| 131 | endif |
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| 132 | enddo |
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| 133 | |
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| 134 | do n=1,ncomptot |
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| 135 | do nn=n,ncomptot |
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| 136 | write(56,*) n,nn,dij(n,nn) !*1.e5/1.381e-23/(273**1.75) |
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| 137 | enddo |
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| 138 | enddo |
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| 139 | close(56) |
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| 140 | |
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| 141 | |
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| 142 | return |
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| 143 | end |
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