필터 지우기
필터 지우기

What changes are needed to run the code

조회 수: 3 (최근 30일)
MINATI PATRA
MINATI PATRA 2021년 11월 16일
댓글: Jan 2021년 12월 6일
Psi = pi/2; L1 = 0.1; L2 = 0.1; L = 0.1; Pr = 1; M = 5;
Ec = 0.5; Nb = 0.5; Nt = 0.1; fw = 0.5; Q = 0.1; Le = 2; Kc = 1;
A = linspace(-1,1,101);
for L = [1 2 3]/10
BC = @(ya,yb)[ ya(1)-fw; ya(2)+1; ya([4;7])-1; yb([2;4;6]) ];
ODE = @(x,y)[ y(2); y(3); ( A.*(y(2)+(1/2)*x*y(3)) - y(1)*y(3) + y(2)*( y(2)+M^2*(sin(Psi))^2) - L1*y(4) - L2*y(6))/(1+(1/L));
y(5); -Pr*( y(1)*y(5) - (1/2)*A.*x*y(5) + Nb*y(5)*y(7) + Nt*y(5)^2 + M^2*Ec*y(2)^2+Q*y(4) );
y(7); -Le*Pr*( y(1)*y(7)-(1/2)*A.*x*y(7)-Kc*y(6) ) - (Nt/Nb)*(-Pr*( y(1)*y(5) - (1/2)*A.*x*y(5) + Nb*y(5)*y(7) + Nt*y(5)^2 + M^2*Ec*y(2)^2+Q*y(4) )) ];
xa = 0; xb = 6; xn = linspace(xa,xb,101); x = xn; solinit = bvpinit(x,[0 1 0 1 0 1 0]); sol = bvp5c(ODE,BC,solinit);
S = deval(sol,x); f0 = deval(sol,xa);
figure(1);plot(A,S(2,:),'-','LineWidth',2);xlabel('\bf\eta','color','b'); ylabel('\bff^\prime(\eta)','color','b');hold on,
end
Error using vertcat
Dimensions of arrays being concatenated are not consistent.

Error in solution (line 6)
ODE = @(x,y)[ y(2); y(3); ( A.*(y(2)+(1/2)*x*y(3)) - y(1)*y(3) + y(2)*( y(2)+M^2*(sin(Psi))^2) - L1*y(4) - L2*y(6))/(1+(1/L));

Error in bvparguments (line 105)
testODE = ode(x1,y1,odeExtras{:});

Error in bvp5c (line 129)
bvparguments(solver_name,ode,bc,solinit,options);
%% ERROR is:
Dimensions of matrices being concatenated are not consistent.
%% Help needed to run

답변 (1개)

Jan
Jan 2021년 11월 16일
편집: Jan 2021년 11월 16일
ODE = @(x,y) [ ...
y(2); ...
y(3); ...
(A.*(y(2)+0.5*x*y(3)) - y(1)*y(3) + y(2)*( y(2)+M^2*(sin(Psi))^2) - L1*y(4) - L2*y(6))/(1+(1/L)); ...
y(5); ...
-Pr*(y(1)*y(5) - 0.5*A.*x*y(5) + Nb*y(5)*y(7) + Nt*y(5)^2 + M^2*Ec*y(2)^2+Q*y(4)); ...
y(7); ...
-Le*Pr*(y(1)*y(7) - 0.5*A.*x*y(7)-Kc*y(6)) - (Nt/Nb)*(-Pr*(y(1)*y(5) - 0.5*A.*x*y(5) + Nb*y(5)*y(7) + Nt*y(5)^2 + M^2*Ec*y(2)^2+Q*y(4)))];
Yes, the 3rd, 5th and 7th element have the size 1x101, while the others are scalars. This comes from the vector A. I cannot guess, what you want to do instead.
  댓글 수: 7
MINATI PATRA
MINATI PATRA 2021년 12월 6일
Dear Jan
This is still unsolved.
Can it be possible for a last try?
Jan
Jan 2021년 12월 6일
I'm not sure, which problem is still open. The code of my answer is running, and only the diagram looks a little bit strange. I do not know, what you want to get instead of this solution. So please explain again, what is still unsolved.

댓글을 달려면 로그인하십시오.

카테고리

Help CenterFile Exchange에서 Programming에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by