Rules of Reynolds Averaging

조회 수: 13 (최근 30일)
William Kett
William Kett 2020년 10월 2일
답변: Alan Stevens 2020년 10월 2일
According to the rules of Reynold's Averaging, Which can be found here under 11.1,
. Is there anyway to show this and the other rules in Matlab either numerically or symbolically?
I tried to create an array, u:
u = [1,3,6,8,24];
uprime = diff(u)
which output a vector of differences (not sure if this is what I wanted).
Then I tried to take an average of uprime using the following code below:
mean(uprime)
According to the rule, I should have gotten 0, but I got an average of the numbers in the vector which was nonzero. Am I misinterpreting the rule or is the diff function not actually taking a derivative?

채택된 답변

Alan Stevens
Alan Stevens 2020년 10월 2일
uprime doesn't mean du/dt here. It means u - umean.
u = [1,3,6,8,24];
umean = mean(u);
uprime = u-umean;
mean(uprime)
ans =
-3.5527e-16

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Spectral Measurements에 대해 자세히 알아보기

제품


릴리스

R2020a

Community Treasure Hunt

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

Start Hunting!

Translated by