Added Mass and Damping in 
Fluid-Structure Interaction

by C. Conca, A. Osses and J. Planchard

This paper is concerned with the added mass matrix for a 
mechanical structure vibrating in an incompressible liquid. 
It is shown in particular that this matrix does not depend 
on viscosity and, from this fact, can be calculated as if 
the fluid is perfect. The viscous effect on the mechanical 
system can then be represented by a damping term of type 
time-convolution. The presence of a flowing fluid around 
the structure leads to additional damping 
terms proportional to the fluid density.

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