urosgrivc |
July 13, 2017 00:49 |
Yes but this only aplies if you are calculating it by hand, a simplification to vhat a real CFD simulation is capable of. As I undarstand this shouldnt even be caled added mass but apparent (or virtual yes) added mass and in a transient fluid simulation all this is calculated with the simulation as this doesent exist. Only mass flow, energy conservation and pressure and others matter beacause this ˝vitrual mass˝ is derived from flow properties on or near the wals of an object like velocity, pressure, density and others which are calculated betven milions of nodes you are just not capable to compute by hand.
Just put an empty void in the fluid (where solid is located) accelerate the walls of this ˝apparent solid˝ make it a transient and monitor the force on the wals it is actualy that simple let the computer do the rest of the computational work for you. Make sure that your timesteps are not too long as force walues will than be wrong because of incorect flow properties.
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