Spreading of Nearshore Effluent Discharges on Eroded Sloping Sandy Beaches

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A far field modeling study is presented to evaluate the effect of erosion of a sloping sandy beach upon the mixing and dispersion of the effluent discharges from a multiport diffuser. The two-dimensional advection-diffusion equation with multiple point sources is analytically solved and illustrated graphically by plotting contours of solution to replicate the interaction and merging of the nearshore effluent discharged plumes in coastal waters. The compounded shoreline concentration is asymptotically approximated and used as an environmental impact measure to assess how well the effluent plumes are diluted downstream. It is found that the significant increase in maximum concentration value due to erosion can be reduced by adding more ports and extending the diffuser pipe. The result demonstrates that a modern marine outfall system equipped with multiport diffusers does produce lower potential environmental impacts.

Original languageEnglish
Title of host publicationRecent Advances in Mathematical and Statistical Methods - IV AMMCS International Conference
EditorsHerb Kunze, D. Marc Kilgour, Roman Makarov, Roderick Melnik, Xu Wang
PublisherSpringer New York LLC
Pages397-407
Number of pages11
Volume259
ISBN (Print)9783319997186
DOIs
Publication statusPublished - Jan 1 2018
EventInternational conference on Applied Mathematics, Modeling and Computational Science, AMMCS 2017 - Waterloo, Canada
Duration: Aug 20 2017Aug 25 2017

Other

OtherInternational conference on Applied Mathematics, Modeling and Computational Science, AMMCS 2017
CountryCanada
CityWaterloo
Period8/20/178/25/17

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Keywords

  • Advection diffusion equation
  • Far field model
  • Multiport diffuser
  • Sea outfall
  • Shoreline concentration

ASJC Scopus subject areas

  • Mathematics(all)

Cite this

Purnama, A., Al-Maamari, H. A., & Balakrishnan, E. (2018). Spreading of Nearshore Effluent Discharges on Eroded Sloping Sandy Beaches. In H. Kunze, D. M. Kilgour, R. Makarov, R. Melnik, & X. Wang (Eds.), Recent Advances in Mathematical and Statistical Methods - IV AMMCS International Conference (Vol. 259, pp. 397-407). Springer New York LLC. https://doi.org/10.1007/978-3-319-99719-3_36