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High-Speed Computation on Fluid Forces Acting on Various Oscillating 3D Objects
In many fluid-structure-interaction problems, the added mass, or the virtual mass, is one of important interests. In the present study, we propose a simple and efficient method to specify fluid-force coefficients of an oscillating object in fluid. In this method, we consider incompressible-and-viscous fluid under the assumption of an infinitesimal oscillation amplitude of a three-dimensional object, and properly modify the Navier-Stokes equations into linear equations, namely, the Brinkman equations. The solving method is based on a discrete singularity method. In order to confirm the method’s effectivity and validity, we compute a sphere and a short cylinder, comparing our computations to theories and experiments which show good agreement.
High-Speed Computation on Fluid Forces Acting on Various Oscillating 3D Objects
In many fluid-structure-interaction problems, the added mass, or the virtual mass, is one of important interests. In the present study, we propose a simple and efficient method to specify fluid-force coefficients of an oscillating object in fluid. In this method, we consider incompressible-and-viscous fluid under the assumption of an infinitesimal oscillation amplitude of a three-dimensional object, and properly modify the Navier-Stokes equations into linear equations, namely, the Brinkman equations. The solving method is based on a discrete singularity method. In order to confirm the method’s effectivity and validity, we compute a sphere and a short cylinder, comparing our computations to theories and experiments which show good agreement.
High-Speed Computation on Fluid Forces Acting on Various Oscillating 3D Objects
Springer Water
Gourbesville, Philippe (editor) / Caignaert, Guy (editor) / Matsumoto, Kyohei (author) / Yamaoka, Yusuke (author) / Shimohara, Hideki (author) / Tanigawa, Hirochika (author) / Hirata, Katsuya (author)
2020-07-26
13 pages
Article/Chapter (Book)
Electronic Resource
English
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