Function works with one input but not the other

2 次查看（过去 30 天）
Samir Chaouki
Samir Chaouki 2022-4-14
评论： Samir Chaouki 2022-4-14
Im using the optimisation tool and have set everything up following the tutorial on the mathwork website, the tool works when the input is Y but not when the input is T_to, which is what id like it to be. T_to input only works when the number of variables is one, which doesnt give me a useful result.
I should disclose im still very new to matlab so its possible that the problem is very simple.
function F = mymulti1(T_to)
y = 20640000;
%T_to = 3050; %degC
A_choke = 0.0531; %m^2
A_Rat = 78;
A_Exit = A_choke * A_Rat; %m^2
T_Exit = 343.2;
M_Exit = 1.65; %Ratio
Gamma = 1.26; %Const
Gas_const = 287.5; %Const
MFR = ((A_choke * y) ./ (sqrt(T_to))) * (sqrt(Gamma / Gas_const)) * ( ((Gamma + 1) / 2)^-((Gamma + 1) / 2*(Gamma - 1)));
Pressure_Exit = (1 + ((Gamma - 1) / 2) * ((M_Exit) ^ 2))^ - (Gamma /(Gamma - 1)) * y;
Velocity_Exit = M_Exit * sqrt(Gamma * Gas_const * T_Exit);
Thrust = (MFR .* Velocity_Exit) + (A_Exit * Pressure_Exit);
F(2) = Thrust ./ MFR ;
F(1) = (y .* A_choke) ./ MFR;
end

请先登录，再回答此问题。

回答（1 个）

VBBV
VBBV 2022-4-14
F(2,:) = Thrust ./ MFR ;
F(1,:) = (y .* A_choke) ./ MFR;
Check the size of output matrix
  10 个评论
显示 8更早的评论
Samir Chaouki
Samir Chaouki 2022-4-14
Hi VBBV,
you've helped already a massive amount but if i could just trouble you a little more.
attached is the plot ive got and the kind of plot im trying to get. what would you recommend i do?
Thanks
Samir

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Multiobjective Optimization 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by