The Coanda Effect anomaly present in 2D CFD simulations of installed rectangular jets

Research output: Contribution to conferencePaper

Abstract

The Coanda Effect describes the attachment of a jet flow to a nearby surface. In this paper, we show that a Computational Fluid Dynamics (CFD) solution of an installed rectangular jet introduces an anomalous Coanda Effect (i.e. bending of the jet towards the trailing edge of the flat plate positioned adjacent to the nozzle lower lip line) when the simulation is performed in 2D. The latter is often used for fast estimation of a full3DRANS calculation (that can take up to 6 days for the residuals to converge to 1x10−4 on a grid of 7 million cells using 16 cores). Our results show that for a3D simulation, the jet flow passed smoothly over the surface without producing significant bending.
Original languageEnglish
Publication statusPublished - 28 May 2020
Event33rd Scottish Fluid Mechanics Meeting - Heriot Watt University, Edinburgh, United Kingdom
Duration: 28 May 202028 May 2020
https://sfmm2020.hw.ac.uk/programme/).

Conference

Conference33rd Scottish Fluid Mechanics Meeting
CountryUnited Kingdom
CityEdinburgh
Period28/05/2028/05/20
Internet address

Keywords

  • computational fluid dynamics (CFD)
  • Coanda Effect
  • CFD
  • fluids
  • mechanics

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    Meaden, K., Afsar, M., Muhel, R., & Kokkinakis, I. (2020). The Coanda Effect anomaly present in 2D CFD simulations of installed rectangular jets. Paper presented at 33rd Scottish Fluid Mechanics Meeting , Edinburgh, United Kingdom.