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Kushagra Saurabh


Last seen: 7 days ago |  Active since 2022

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coupled differntial equation using ode45
I'm getting an error while solving this coupled differential equation usually the error is showing issues with vertical concaten...

13 days ago | 3 answers | 0

3

answers

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I'm trying to solve jeffry hamel equation using RK4 but it's not giving output as expected.
%%%% Jeffry-Hamel equation stability analysis %%%% %%% ode:(U''' +2sUU' = 0) such that U' = g, g' = h, h' = -2*s*U*g %%% %%% w...

1 month ago | 2 answers | 0

2

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The size of X must match the size of Z or the number of columns of Z.
i'am trying to solve 2d laplace equation using fourth order central difference could but i'am getting an error:The size of X mus...

2 years ago | 2 answers | 0

2

answers

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The size of X must match the size of Z or the number of columns of Z.
I am trying to solve the 2d laplace equation for heat conduction using forward diffrence scheme, but I'm getting an error:The s...

2 years ago | 1 answer | 0

1

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Index in position 1 is invalid. Array indices must be positive integers or logical values.
% calculation of Emax T_epsilon = zeros(Nx,Ny); for i =2:Nx-1 for j = 2:Ny-1 T_epsilon(i,j) = T(i,j) - A((dy*i)/...

2 years ago | 2 answers | 0

2

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error: Unable to perform assignment because the size of the left side is 1-by-49 and the size of the right side is 1-by-51 at line 23, where is the problem?
clear all; close all; geometry of domain Nx = 51; Ny = 51; dx = 1/(Nx-1); dy = 1/(Ny-1); W = 0:dx:1; H = 0:dy:1; ...

2 years ago | 1 answer | 0

1

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