HWProblem109 -...

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2000 4000 6000 8000 10000 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Delta U (m/s) Mp/Mo tb=75 days tb=150 days tb=300 days % Sossi, Craig 904512344 % 10.9 P=100000; % W alpha=30/1000; % kg/kW Isp=3500; % sec nmax=0.93; % unitless K=19670; % m/s Ue=9.81*Isp; % m/s % Delta U range: deltaU=2000:10:10000; % tb range: tb1=75*24*3600; tb2=150*24*3600; tb3=300*24*3600; M1=exp(-deltaU./Ue)*(1+alpha*(Ue^2+K^2)/(2*nmax*tb1))-alpha*(Ue^2+K^2)/(2*nmax*tb1); M2=exp(-deltaU./Ue)*(1+alpha*(Ue^2+K^2)/(2*nmax*tb2))-alpha*(Ue^2+K^2)/(2*nmax*tb2);
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Unformatted text preview: M3=exp(-deltaU./Ue)*(1+alpha*(Ue^2+K^2)/(2*nmax*tb3))-alpha*(Ue^2+K^2)/(2*nmax*tb3); figure hold on set(gca, 'fontsize' ,14) plot(deltaU,M1, 'g' , 'linewidth' ,1.5) plot(deltaU,M2, 'c' , 'linewidth' ,1.5) plot(deltaU,M3, 'r' , 'linewidth' ,1.5) xlabel( 'Delta U (m/s)' ) ylabel( 'Mp/Mo' ) legend( 'tb=75 days' , 'tb=150 days' , 'tb=300 days' , 'Location' , 'SW' )...
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This note was uploaded on 01/23/2012 for the course AOE 4234 taught by Professor Shinpaugh during the Fall '08 term at Virginia Tech.

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