Application of local grid refinement to vortex motion due to a solitary wave passing over a submerged body

Chii-Jau Tang, Jyh Hwa Chang

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A numerical method based on the streamfunction-vorticity formulation is applied to simulate the two-dimensional, transient, viscous flow with a free surface. This method succesfully uses the locally refined grid in an inviscid-viscous model to explore the processes of vortex formation due to a solitary wave passing over a submerged bluff body. The two particular bodies considered here are a blunt rectangular block and a semicircular cylinder. Flow visualization to track dyelines is carried out in the laboratory in order to confirm the validity of the numerical results. Numerical results examined by different grid configurations ensure the locally refined grid to be useful in practical application. Flow phenomena, including the vortex motion and wave patterns during non-linear wave-structure interaction, are also discussed.

Original languageEnglish
Pages (from-to)609-624
Number of pages16
JournalInternational Journal for Numerical Methods in Fluids
Volume38
Issue number7
DOIs
Publication statusPublished - 2002 Mar 10

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submerged bodies
Grid Refinement
Local Refinement
Solitary Waves
Solitons
Vortex
Vortex flow
solitary waves
grids
vortices
Grid
Motion
Viscous flow
Flow visualization
Vorticity
Flow Visualization
bluff bodies
Numerical Results
Numerical methods
flow visualization

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Safety, Risk, Reliability and Quality
  • Applied Mathematics
  • Computational Theory and Mathematics
  • Computer Science Applications
  • Computational Mechanics
  • Mechanics of Materials

Cite this

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Application of local grid refinement to vortex motion due to a solitary wave passing over a submerged body. / Tang, Chii-Jau; Chang, Jyh Hwa.

In: International Journal for Numerical Methods in Fluids, Vol. 38, No. 7, 10.03.2002, p. 609-624.

Research output: Contribution to journalArticle

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