Direct Numerical Simulation of Three-dimensional Gravity Current on a Uniform Slope. (2015)

• Record Type: Journal Article
• Authors: Ooi, A.; Zgheib, N.; Balachandar, S.
• Is Part Of: Procedia engineering. Volume 126(2015)
• Page Start: 372
• Page End: 376
• Publication Date: 2015
• Subjects: gravity currents -- direct numerical simulations -- boussinesq; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2015.11.216
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: Gravity currents occur when fluids of different density are brought together. When gravity currents travel down a uniform slope, buoyancy effects become more important and changes the physical dynamics of its motion. In the present paper, we report data from full three-dimensional direct numerical simulation of gravity currents propagating down a uniform slope. Our data shows that in most cases, the gravity current evolve to a shape that is similar to a triangular wedge. The physical mechanisms leading to formation of this triangular shape and the dynamics of such a structure is presented