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Çë¸ßÊÖÖ¸µã£ºÒÔÏÂÊÇÎҵijÌÐò£¬Ö÷ÒªÊÇÏ뻳ödv¹ØÓÚvºÍdtµÄº¯ÊýͼÏó£¬ÈôÊÇÆäÖÐÒ»¸öΪ¶¨ÖµÊ±£¬³ÌÐò¿ÉÒÔ¼ÆË㣬¿ÉÊDZä³ÉÁ½¸ö¾Í³ö´í£¬Çë¾ÀÕýÎҵĴíÎó£¬Ð»Ð»£¡ function wucha25t syms dt v; d1=4.445; d2=1.445; d3=1.5; t=25; T=t+273.15; E=610.78*exp(17.269*(T-273.16)./(T-35.86)); RH=0.6; Pw=E*RH; Ptot=1.013*10^5; Pd=Ptot-Pw; n=77.6890*Pd./T+71.2952*Pw./T+375463*Pw./(T.^2); n1=1.5095271; n3=1+n*10^(-6); n2=n3; a1=10^(-7); a2=0; a3=a2; b1=10^-6; b2=-0.1355; b3=-0.1355; c=3.0*10^8; zxbc=867.7*10^(-9); dt=0:10; v=0:50; [X,Y]=meshgrid(dt,v); gcc=2*(n1*d1-n2*d2-n3*d3); ddgcc=((n1*d1*a1+d1*b1)-(n2*d2*a2-d2*b2)-(n3*d3*a3+d3*b3))*dt; dxwc=f(dt,v(i)); dxwc=f(dt(j),v); dxwc=(2*pi.*v/(zxbc*c)).*ddgcc; dv=(c*zxbc/(2*pi*gcc)).*dxwc; [X,Y,Z]=peaks(30); surf(v,dt,dv); |
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