Error in vorticity calculation using curl function

2 次查看（过去 30 天）
Turbulence Analysis
回答： Sai Sumanth Korthiwada 2022-12-22
Hi,
I am comparing the vorticity contours evaluated from velocity data using matlab's curl () function and pivmat's vec2scal function
Though, in both method, I am getting the similar contour, but the vorticity values are not correct. Could somebody help me with this ??. Image 1 generated using curl() and 2 generated using pivmat's vec2scal function..

请先登录，再回答此问题。

回答（1 个）

Sai Sumanth Korthiwada
Hi,
The images attached in the query looks similar. However, the values of vorticity may differ as ‘curl()’ function is from MATLAB and ‘vec2scal()’ function is from PIVMat.
In ‘vec2scal()’ function, there is a scalar mode curl (or rot) : curl (z-component of vorticity field).
Try using ‘curl’ as an input argument to obtain the appropriate results. By default, if input argument ‘MODE’ is omitted, 'norm' (for a 2D field) or 'uz' (for a 3D field) is taken by default.

类别

在 Help Center 和 File Exchange 中查找有关 Particle & Nuclear Physics 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by