Numerical investigation of fresh water-suspended sediment mixtures discharging into saline ambient water

Anastasios Georgoulas, Panagiotis Angelidis, Nikolaos Kotsovinos, Theologos G. Panagiotidis

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

Abstract

In this paper, hypopycnal and hyperpycnal particulate currents that are formed at river outflows in the sea are studied. The main aim is the use of CFD methods, in order to investigate the plunging mechanism in the case of hyperpycnal currents. Two series of numerical experiments are conducted. The first series, aims to validate the numerical model by checking its ability in capturing the critical suspended sediment concentration for plunging. The second series, aims to investigate the dependence of the plunge depth from the initial flow conditions, in the case of hyperpycnal currents. From the analysis of the results, an empirical equation is derived which relates the plunge depth with the initial conditions. It is also found that secondary hyperpycnal currents, can be generated indirectly, from hypopycnal currents, due to descending sediment fingers. The model predictions, in the present paper are in agreement with previous investigations.
Original languageEnglish
Title of host publicationProceedings of the 6th International Symposium on Environmental Hydraulics
Place of PublicationAthens, Greece
PublisherCRC Press
Pages547-552
Number of pages6
ISBN (Print)9780415584753
Publication statusPublished - 1 Jan 2010
EventProceedings of the 6th International Symposium on Environmental Hydraulics - Athens, Greece
Duration: 1 Jan 2010 → …

Conference

ConferenceProceedings of the 6th International Symposium on Environmental Hydraulics
Period1/01/10 → …

Fingerprint Dive into the research topics of 'Numerical investigation of fresh water-suspended sediment mixtures discharging into saline ambient water'. Together they form a unique fingerprint.

  • Cite this

    Georgoulas, A., Angelidis, P., Kotsovinos, N., & Panagiotidis, T. G. (2010). Numerical investigation of fresh water-suspended sediment mixtures discharging into saline ambient water. In Proceedings of the 6th International Symposium on Environmental Hydraulics (pp. 547-552). CRC Press.