On the force and torque on systems of rigid bodies: A remark on an integral formula due to Howe
نویسندگان
چکیده
M. S. Howe J. Fluid Mech. 206, 131 1989 presented integral formulas for the force and torque on a rigid body that permit the identification of the separate influences of added mass, normal stresses induced by free vorticity, and viscous skin friction. Here a simple extension of Howe’s formulas is done for systems of several rigid bodies. The goal is to separate these effects on each rigid body. These new formulas may help in understanding the hydrodynamic interaction between bodies. As an example, the interaction forces on a pair of bubbles rising at high Reynolds number side by side are computed. © 2007 American Institute of Physics. DOI: 10.1063/1.2730481
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