LIU Cong-wei, WU Fang-liang, LI Huan, CHEN Can, LI Peng. Flow Noise Calculation With the Viscous Acoustic Splitting Method on Curvilinear Meshes[J]. Applied Mathematics and Mechanics, 2016, 37(4): 352-362. doi: 10.3879/j.issn.1000-0887.2016.04.003
Citation: LIU Cong-wei, WU Fang-liang, LI Huan, CHEN Can, LI Peng. Flow Noise Calculation With the Viscous Acoustic Splitting Method on Curvilinear Meshes[J]. Applied Mathematics and Mechanics, 2016, 37(4): 352-362. doi: 10.3879/j.issn.1000-0887.2016.04.003

Flow Noise Calculation With the Viscous Acoustic Splitting Method on Curvilinear Meshes

doi: 10.3879/j.issn.1000-0887.2016.04.003
  • Received Date: 2015-11-25
  • Rev Recd Date: 2016-01-09
  • Publish Date: 2016-04-15
  • The viscous acoustic splitting method on curvilinear meshes was developed for hydrodynamic noise calculation related to the interaction between a stationary cylinder and sound waves as well as vortex waves in flow field. The 7-point dispersion-relation-preserving (DRP) difference scheme coupled with the classical 4th-order Runge-Kutta scheme, was implemented to solve the governing equations for the simulation of hydroacoustic phenomena. The propagating acoustic pulse reflected by the stationary cylinder was computed and compared with the theoretical results to demonstrate the validity of the calculation strategy. The flow noise generated by the vortex in inhomogeneous water flow and the interaction beteen the vortex and the cylinder were studied to analyze the effects of the vortex core size and the incoming flow velocity on the acoustic filed. The work lays a foundation for the precise calculation of hydrodynamic noise in flow past immersed bodies.
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