How to plot contour with constraints
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
% I have following equations. I want to see variation of cp(si1,si2) with si1 and si2 with following constraints
% constraints are , gamma> max(0 -alpha) and gamma+ beta < 0
% I have written following code, but is giving wrong results. Code is giving value of cp in the range of 0 to 140 but it should around 0 to 2.5
% I have attached the for expected output. But I am getting completely wrong result.
clear all
Cpe=-0.6
lamdan=0.5
lamdad=0.5952
lamda12=0.84
nd=0.9
n12=0.9
nn=0.7
alpha= nn+lamdan^2*(1-nn)-n12*(1-lamda12^2)-nd*lamda12^2*(1-lamdad^2)
beta= alpha+ ((lamdad^2*lamda12^2*(1-Cpe))/Cpe)
[si1 si2] = meshgrid(0:0.1:1, 0:0.1:1);
gamma=si1+(si2*lamda12^2)
cp= gamma*((1-Cpe)./(gamma+alpha)).^1.5
keepind = gamma+ beta > 0
si1(keepind) = NaN
si2(keepind) = NaN
contourf(si1, si2, cp)
3 commentaires
Réponse acceptée
KSSV
le 16 Sep 2020
Cpe=-0.6;
lamdan=0.5;
lamdad=0.5952;
lamda12=0.84;
nd=0.9;
n12=0.9;
nn=0.7;
si1 = linspace(0,1) ;
si2 = linspace(0,1) ;
[si1,si2] = meshgrid(si1,si2) ;
alpha= nn+lamdan.^2*(1-nn)-n12*(1-lamda12.^2)-nd*lamda12.^2*(1-lamdad.^2) ;
beta= alpha+ ((lamdad.^2*lamda12.^2*(1-Cpe))./Cpe) ;
gamma=si1+si2*lamda12.^2+alpha ;
cp= (si1+si2*lamda12.^2)*((1-Cpe)./(si1+si2*lamda12.^2+alpha)).^1.5 ;
contour(si1,si2,cp)
4 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Contour Plots dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!