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SPH MODELING OF BREAKING WAVES

Benedict D. Rogers, Robert A. Dalrymple

Open publisher page 36 citations

Abstract

Smoothed particle hydrodynamics (SPH) is used to simulate both two and three-dimensional cases of wave breaking. A combined SPH-LES type scheme or sub-particle scale (SPS) scheme is used to capture coherent turbulent structures. Results are presented for weakly plunging breaking waves. The 2-D numerical results show that a highly turbulent bore is produced propagating up the beach while generating reverse breaking that precipitates a downbursting-like phenomenon. The initial application of the 3-D scheme to the same problem is presented but the resolution is insufficient to detect reliably coherent turbulent structures. Nevertheless, even the 3-D results suggest the existence of eddies whose primary axis of rotation is near-vertically oriented.

About this research paper

What this paper is about

Smoothed particle hydrodynamics (SPH) is used to simulate both two and three-dimensional cases of wave breaking. A combined SPH-LES type scheme or sub-particle scale (SPS) scheme is used to capture coherent turbulent structures. Results are presented for weakly plunging breaking waves. The 2-D numerical results show that a highly turbulent bore is produced propagating up the beach while generating reverse breaking that precipitates a downbursting-like phenomenon. The initial application of the 3-D scheme to the same problem is presented but the resolution is insufficient to detect reliably coherent turbulent structures. Nevertheless, even the 3-D results suggest the existence of eddies whose primary axis of rotation is near-vertically oriented.

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OpenAlex reports 36 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Smoothed particle hydrodynamics (SPH) is used to simulate both two and three-dimensional cases of wave breaking. A combined SPH-LES type scheme or sub-particle scale (SPS) scheme is used to capture coherent turbulent structures. Results are presented for weakly plunging breaking waves. The 2-D numerical results show that a highly turbulent bore is produced propagating up the beach while generating reverse breaking that precipitates a downbursting-like phenomenon. The initial application of the 3-D scheme to the same problem is presented but the resolution is insufficient to detect reliably coherent turbulent structures. Nevertheless, even the 3-D results suggest the existence of eddies whose primary axis of rotation is near-vertically oriented.

Key concepts: Breaking wave, Computer science, Physics, Wave propagation, Optics

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