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flow5 v7.22 introduces an experimental option to visualize flow animations around the models.
To take advantage of the parallel nature of the flow line calculations, they are dispatched to the GPU where they are processed in OpenGL's Compute Shader.
Compute Shaders have been introduced in OpenGL 4.3 which will therefore need to be activated in the OpenGL Settings. It is recommended to check that the views "Lorenz (GPU)" and "Boids (GPU)" display correctly before trying flow animations.
Since MacOS has ended its support for OpenGL at version 4.1, flow animations are not available on this platform.
The calculation of the flow is computationally expensive and makes a heavy use of the computing power of the GPU. In windows, the load on the GPU can be visualized for information in the task manager.
For practical reasons, the flow animations are only implemented for tri-uniform solutions, since this method is the most versatile and offers the best compromise between precision and computational cost.
The flow animation is activated in the usual right side control box of the 3d display and is enabled when an operating point of a tri-uniform type polar is selected.
The animation settings are specified in the last tab of the scales widget.
The computational cost increases with the number of panels, the number of vortons, and the presence of a ground or free surface.