Citation

Li X, Chen G, Khan F. J. Hazard. Mater. 2019; 367: 676-685.

Affiliation

Centre for Risk, Integrity and Safety Engineering (C-RISE), Memorial University, St John's, NL, A1B 3X5, Canada. Electronic address: fikhan@mun.ca.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.jhazmat.2019.01.015

PMID

30654285

Abstract

Underwater gas release and dispersion characteristics are important to assess and manage potential risks. This paper presents an experimental and numerical investigation of underwater gas release and dispersion behavior. A small-scale experimental setup is designed and developed for underwater gas release and dispersion study. A series of release scenarios are carried out to study the effect of release size, leak pressure, and leak direction on dispersion behavior. The underwater gas dispersion behavior is analyzed from the risk assessment perspective. The considered parameters included plume offset, plume radius and fountain height for different scenarios. The experimental results are used to test and verify numerical computational fluid dynamics model using Eulerian-Lagrangian approach. The developed numerical model is subsequently used to analyze the gas plume in a full-scale scenario. The developed model would help to support risk assessment and response planning of potential subsea gas release accidents.

Copyright © 2019 Elsevier B.V. All rights reserved.

Language: en

Keywords

Dispersion behavior; Experimental validation; Gas plume; Numerical model; Risk assessment; Underwater gas release