# A moving control volume approach to computing hydrodynamic forces and torques on immersed bodies

@article{Nangia2017AMC, title={A moving control volume approach to computing hydrodynamic forces and torques on immersed bodies}, author={Nishant Nangia and Hans Johansen and Neelesh A. Patankar and Amneet Pal Singh Bhalla}, journal={J. Comput. Phys.}, year={2017}, volume={347}, pages={437-462} }

Abstract We present a moving control volume (CV) approach to computing hydrodynamic forces and torques on complex geometries. The method requires surface and volumetric integrals over a simple and regular Cartesian box that moves with an arbitrary velocity to enclose the body at all times. The moving box is aligned with Cartesian grid faces, which makes the integral evaluation straightforward in an immersed boundary (IB) framework. Discontinuous and noisy derivatives of velocity and pressure at…

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