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[ÇóÖú] ·½³ÌÇó½â³ö´í£¬±¨´í¡°Î´¶¨Ò庯Êý»ò±äÁ¿ 'hi'¡±ÇóÖú£¡ ÒÑÓÐ1È˲ÎÓë

function htp=calhtpbyGW1(Pcr,Pevap,Molmass,fi,Gwf,uf,ufg,xdry,di,T,deltaT,densf,densnp,densg,conductf,conductnp,Cpnp,Cpf,rp,ifg)

htpxmin=1.0e+1;
htpxmax=3.0e+4;
opt=optimset( 'fzero');
opt=optimset( opt,'TolX', 1.0e-3);
htp=fzero(@(htpx)calerror(htpx,Pcr,Pevap,Molmass,fi,Gwf,uf,ufg,xdry,di,T,deltaT,densf,densnp,densg,conductf,conductnp,Cpnp,Cpf,rp,ifg),[htpxmin htpxmax],opt);

end

function error=calerror(htpx,Pcr,Pevap,Molmass,fi,Gwf,uf,ufg,xdry,di,T,deltaT,densf,densnp,densg,conductf,conductnp,Cpnp,Cpf,rp,ifg)

unf=(1+2.5*fi+6.25*fi)*uf; %ÔËÓÃBatchelor¹«Ê½¼ÆËãÄÉÃ×Á÷Ì嶯Á¦ð¤¶È
fiw=1/((1+(1-fi))*(densf/densnp));% Ìå»ý·ÖÊý»»Ëã³ÉÖÊÁ¿·ÖÊý
kB=1.3806505*10^-23;  %²£¶û×ÈÂü³£Êý£¬µ¥Î»J/K
densnf=fiw*densnp+(1-fiw)*densf;   %¼ÆËãÄÉÃ×Á÷ÌåÃܶÈ
Cpnf=(fi*densnp*Cpnp+(1-fi)*densf*Cpf)/densnf;%¼ÆËãÄÉÃ×Á÷ÌåµÄ±ÈÈÈ
conductnf=(conductnp+2*conductf-2*fi*(conductf-conductnp))/(conductnp+2*conductf+fi*(conductf-conductnp))+((fi*(densnp*Cpnp)/2*conductf))*(kB*T/3*3.14*rp*unf)^0.5;%ÔËÓÃÐûÒæÃñÄ£ÐͼÆËãµ¼ÈÈϵÊý
Prnf=unf*Cpnf/conductnf;               %¼ÆËãÄÉÃ×Á÷ÌåµÄÆÕÀÊÌØÊý
Rel=(Gwf*(1-xdry)*di/unf);                %¼ÆËãÒºÏàRe
Frl=Gwf^2/(densf^2*9.81*di);               %¼ÆËãFrÊý                              
Xtt=((1-xdry)/xdry)^0.9*(densg/densnf)^0.5*(unf/ufg)^0.1;               %¼ÆËãXttÊý
F=1+24000*(hi*deltaT/Gwf*ifg)^1.16+1.37*(1/Xtt)^0.86;
S=1/(1+1.15*10^(-6)*F^2*Rel^1.17);         %%¼ÆËãºË̬·ÐÌÚÒÖÖÆÒò×Ó£¬ÎÞÁ¿¸Ù   
hl=0.023*Rel^0.8*Prnf^0.4*conductnf/di;                    %%¼ÆËãÒºÏà¶ÔÁ÷»»ÈÈϵÊý£¬W/(m2.K)
                              
Prevapwf=Pevap/Pcr;
q=htpx*deltaT;
hnb=55*Prevapwf^0.12*(-log10(Prevapwf))^(-0.55)*Molmass^(-0.5)*q^0.67;   %%  cooper¹«Ê½¼ÆËãºË̬·ÐÌÚ»»ÈÈϵÊý£¬W/(m2.K)£¨COOPER¹«Ê½µ¥Î»±ØÐëÓÃW/(m2.K)      
hi0=Frl^(0.1-2*Frl)*F*hl+Frl^0.5*S*hnb;  %%¼ÆËã¶ÔÁ÷·ÐÌÚ»»ÈÈϵÊýhi,W/(m2.K)
hi1=hl*F+hnb*S;     %%¼ÆËã¶ÔÁ÷·ÐÌÚ»»ÈÈϵÊýhi,W/(m2.K)
if Frl<=0.05                                    
    hi=hi0;   
    else
   hi=hi1;  
  end

                                    
error=hi-htpx;
end
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ѪδÀä: ½ð±Ò+30, ¡ïÓаïÖú, ÄǸöµØ·½´ò´íÁË¡£¡£¡£ 2015-05-22 11:25:52
calerrorº¯ÊýµÚ13ÐУºF=1+24000*(hi*deltaT/Gwf*ifg)^1.16+1.37*(1/Xtt)^0.86;
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ÒýÓûØÌû:
2Â¥: Originally posted by xiegangmai at 2015-05-22 11:14:04
calerrorº¯ÊýµÚ13ÐУºF=1+24000*(hi*deltaT/Gwf*ifg)^1.16+1.37*(1/Xtt)^0.86;
ÖÐhiÊÇûÓж¨Òå¡£

ÄǸöµØ·½´ò´íÁË¡£¡£¡£²»¹ý»¹ÊÇûÄÜÔËÐгöÀ´¡£¡£³õÖµhtp=calhtpbyGW1(3661800,100000,152.93,0.0001,1600,0.00040588,0.000010826,0.3,0.00545,300.61,22.54,1457.6,0.00397,6.3918,0.075734,29,800,1026,10^(-8),2000)ÊäÈëºó£¬³öÏÖÁË¡°´íÎóʹÓà fzero (line 274)Çø¼ä¶Ëµã´¦µÄº¯ÊýÖµ±ØÐë¾ßÓв»Í¬µÄ·ûºÅ¡£¡±Çó½â!!
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Ìú¸Ëľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by xiegangmai at 2015-05-22 11:14:04
calerrorº¯ÊýµÚ13ÐУºF=1+24000*(hi*deltaT/Gwf*ifg)^1.16+1.37*(1/Xtt)^0.86;
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F=1+24000*(htpx*deltaT/Gwf*Hfg)^1.16+1.37*(1/Xtt)^0.86;ÕâÐÐÓ¦¸ÃÊÇÕâ¸ö
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4Â¥2015-05-22 11:28:40
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