How can I restrict a parameter (turbulence intensity) to only positive values?
显示 更早的评论
Hello,
I have a code in which the parameter u3 which denotes the turbulence intensity oscillates from positive to negative for each iteration. Since negative turbulence does not have any physical meaning, I hence want to restrict the same to only positive values. I'm finding it difficult to restrict the same in the code.
Can someone guide me please for the above-mentioned.
Please run using the callme.m file.
With regards,
rc
采纳的回答
hi,
i took a peek at your code and it's massive. therefore i came just to say that if you have a value, where you only want the positive values, you can do this:
a = -5:1:5; % numbers from -5 to 5
idx = a > 0; % logical vectors, where the values are positive
a(idx) % vector 'a', where the values are positive
p.s.
if you really want help, it's a good practice to copy-paste your code here, as it's easier to access compared to downloading the files, opening them in Matlab and running it.
3 个评论
Rahul
2023-5-8
Rahul
2023-5-9
Depends on the position of the columns, but I'll show you.
Also, please, accept my answer if it was useful for you.
% Random 5×5 matrix
a = randi(10, [5 5])
% Find where values are higher than 5 in the first 3 columns
idx = a(:,1:3) > 5
% Apply index to the matrix
a(idx)
更多回答（1 个）
E. Cheynet
2023-5-9
0 个投票
Rather than restricting the turbulence intensities to positive values only, I suggest to understand why the turbulence intensity is sometimes negative. Per definition, it should not happen. So there may be something wrong in the code.
2 个评论
Rahul
2023-5-9
E. Cheynet
2024-2-26
The error comes likely from the function that calculate the turbulence intensity.
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