How to simulate the free fall of a metal ball in liquid ?

here you are, the tuto with the part :
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Step 1:
Click on the wizard. (Sorry my SW is in french)
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Step 2:
In Analysis Type be sur to check the External Type !
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Step 3:
Select your fulid, and in the boundray menu put on the speed of the fluid
and execute the analisys -
Step 4:
Then you can add visulaisation plane, iso lines or wathever for seeing what you are looking for