APPLICATION OF SMOOTHED PARTICLE HYDRODYNAMICS (SPH) IN NEARSHORE MIXING: A COMPARISON TO LABORATORY DATA

Proceedings of the International Conference on Coastal Engineering

Jonathan Pearson¹  Soroush Abolfathi² 

[1] Fluid Mechanics Research Centre, Coventry University, Priory Street, Coventry, CV1 5FB, UK;Flow Measurement &School of Engineering, University of Warwick

关键词: WCSPH;    Dispersion;    Diffusion;    nearshore mixing;    LDA;   

DOI  :  10.9753/icce.v35.currents.16

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

A weakly compressible smoothed particle hydrodynamics (WCSPH) method is used to simulate the nearshore flow hydrodynamics. The wave induced dispersion and diffusion are determined for monochromatic waves with significant wave height of 0.12 m and the wave period of 1.2 sec (Sop=5%) based on WCSPH wave dynamics. The hydrodynamics of WCSPH model are compared to the laboratory results obtained from series of LDA measurements. The overall mixing coefficients across the nearshore are determined from WCSPH hydrodynamics. The mixing coefficients obtained are compared with the values determined from a series of fluorometric studies performed in a large-scale facility in DHI, Denmark. The results show that the wave profiles are in good agreement with the experimental data. The WCSPH model is proven to be well capable of estimating the dispersion across the nearshore.

【 授权许可】

CC BY