Numerical modelling of two-dimensional and axisymmetric gravity currents

Michael D Patterson; J E Simpson; S B Dalziel; N N Nikiforakis

doi:10.1002/fld.841

Numerical modelling of two-dimensional and axisymmetric gravity currents

Michael D Patterson, J E Simpson, S B Dalziel, N N Nikiforakis

Research output: Contribution to journal › Article (Academic Journal) › peer-review

18 Citations (Scopus)

Abstract

A series of two-dimensional (2D), axisymmetric and three-dimensional (3D) numerical flow simulations using an implicit large Eddy simulation (ILES) are carried out for gravity-driven fluid flows. The results are compared directly with experiments undertaken to test the model. Two-dimensional results show that the Large Eddy algorithm is successful in modelling a gravity current's large scale structure. Examination of the 3D results shows that macroscopic features of the flow (the lobe and cleft instability) observed at the interface between the light and dense fluid are also modelled well

Original language	Undefined/Unknown
Pages (from-to)	1221-1227
Number of pages	7
Journal	International Journal for Numerical Methods in Fluids
Volume	47
Issue number	10-11
DOIs	https://doi.org/10.1002/fld.841
Publication status	Published - 31 Jan 2005

Bibliographical note

M1 - Article

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AU - Simpson, J E

AU - Dalziel, S B

AU - N Nikiforakis, N

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PY - 2005/1/31

Y1 - 2005/1/31

N2 - A series of two-dimensional (2D), axisymmetric and three-dimensional (3D) numerical flow simulations using an implicit large Eddy simulation (ILES) are carried out for gravity-driven fluid flows. The results are compared directly with experiments undertaken to test the model. Two-dimensional results show that the Large Eddy algorithm is successful in modelling a gravity current's large scale structure. Examination of the 3D results shows that macroscopic features of the flow (the lobe and cleft instability) observed at the interface between the light and dense fluid are also modelled well

AB - A series of two-dimensional (2D), axisymmetric and three-dimensional (3D) numerical flow simulations using an implicit large Eddy simulation (ILES) are carried out for gravity-driven fluid flows. The results are compared directly with experiments undertaken to test the model. Two-dimensional results show that the Large Eddy algorithm is successful in modelling a gravity current's large scale structure. Examination of the 3D results shows that macroscopic features of the flow (the lobe and cleft instability) observed at the interface between the light and dense fluid are also modelled well

U2 - 10.1002/fld.841

DO - 10.1002/fld.841

M3 - Article (Academic Journal)

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JO - International Journal for Numerical Methods in Fluids

JF - International Journal for Numerical Methods in Fluids

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