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China Ocean Engineering

, Volume 33, Issue 4, pp 468–476 | Cite as

Investigation on A Resistance-Type Porosity Model and the Experimental Coefficients

  • Pei-hong Zhao
  • Da-peng SunEmail author
  • Hao Wu
Technical Notes
  • 19 Downloads

Abstract

The mathematical model based on the Volume-Averaged/Reynolds-Averaged Navier—Stokes (VARANS) equations has been adopted in recent years to generally simulate the interaction between waves and porous structures. However, it is still hard to determine the two experimental coefficients (α and β) included in VARANS equations. In the present study, VARANS equation is adopted to describe the flow inside and outside the porous structures uniformly, with applying the volume averaged kε model to simulate the turbulence effect. A new calibration method is used to evaluate the accuracy of numerical simulation of wave motion on porous seabed with different coefficients, by taking the wave damping rate as an index. The calibration is achieved by completing a simulation matrix on two calibration cases. A region can be found in the parameter space to produce a lower error, which means that the simulation results are better consistent with the experimental results.

Key words

porous media VARANS equations wave damping rate perforated caisson rubble-mound foundation 

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Copyright information

© Chinese Ocean Engineering Society and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalianChina

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