problem in plotting the velocity profile

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Souvick roy 2018-11-12

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https://ww2.mathworks.cn/matlabcentral/answers/429331-problem-in-plotting-the-velocity-profile

评论： KSSV 2018-11-14

New Doc 2018-11-11 08.03.24.jpg

Respected sir i have attched one picture here , likethis picture i want to plot velocity(u) vs y plot my formula for velocity profile is below whatever I have done in Matlab code I am writing below the formulae

U = 1./mu.*(t_o.*(y-delta)+4.*alpha.*sqrt(t_o.*t_e).*exp(- alpha./(2.*delta))+t_e.*alpha.*(1-exp(-y./alpha)))
   t_o=100 
t_e=150 
mu=0.3 
delta=0.6
 alpha values are 0.1,0.2,0.3,0.3,0.4,-0.2,-0.5

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回答（1 个）

KSSV 2018-11-12

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/429331-problem-in-plotting-the-velocity-profile#answer_346442

编辑：KSSV 2018-11-12

在 MATLAB Online 中打开

alpha = [0.1,0.2,0.3,0.3,0.4,-0.2,-0.5] ;
t_o=100 ;
t_e=150 ;
mu=0.3 ;
delta=0.6 ;
y = linspace(0,1) ;
figure
hold on
for i = 1:length(alpha)
    U = 1/mu*(t_o.*(y-delta)+4*alpha(i)*sqrt(t_o*t_e).*exp(-alpha(i)/(2*delta))+t_e*alpha(i).*(1-exp(-y/alpha(i)))) ;
    plot(y,U)
end