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Use this field to define the minimum speed. Particles with velocities lower than this value will be deleted. If “Limit & Keep” is activated, a particle’s velocity will be limited to the adjusted speed value. The unit is metres per second [m/s].
Max Speed
All particles with velocities above this limit will be removed. As with "Min speed", the unit is metres per second [m/s], too.
Limit & Keep
You can choose between “No” and “Yes”, and by default this action is deactivated. By switching to “Yes”, RealFlow will use “Max speed” to limit all particles with greater velocities to this particular value and keep this speed. This is helpful if you do not want the particles to become faster and faster over time. Another field of application is the relaxation of fluids. With this technique it is possible to withdraw energy from the particles over time, making the fluid rest and remove sloshing. From such a relaxed fluid it is possible to make an initial state and continue with a fresh simulation.
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