Reynolds averaged and large eddy computations of flow and heat transfer under round jet impingement

Thangam Natarajan, James Jewkes, Ramesh Narayanaswamy, Yongmann M. Chung, Anthony D. Lucey

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

4 Citations (Scopus)

Abstract

The fluid dynamics and heat transfer characteristics of a turbulent round jet are modelled numerically using Reynolds- Averaged Navier-Stokes (RANS) and Large Eddy Simulation (LES). Meshes with varying degrees of coarseness, with both radial and axial refinements are investigated. Discretization is carried out using the finite volume method. The jet configurations are chosen to enable validation against well-established experimental jet-impingement heat-transfer studies, particularly that of Cooper et al. [1]. The Reynolds number studied is 23000. The height of discharge from the impingement wall is fixed at twice the jet diameter. The work critically examines the effect of Reynolds number, standoff distance and helps to ascertain the relative merits of various turbulence models, by comparing turbulent statistics and the Nusselt number distributions. The present work is carried out as a preliminary validation, in a wider study intended to determine the thermofluidic behaviour of jets impinging upon an oscillating surface.

Original languageEnglish
Title of host publicationSymposia: Advances in Fluids Engineering Education; Turbomachinery Flow Predictions and Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; Droplet-Surface Interactions; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages10
Volume1A
ISBN (Electronic)9780791846216
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels - Chicago, United States
Duration: 3 Aug 20147 Aug 2014
https://www.asmeconferences.org/FEDSM2014/

Conference

ConferenceASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels
CountryUnited States
CityChicago
Period3/08/147/08/14
Internet address

Bibliographical note

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Keywords

  • Flow (Dynamics)
  • Heat transfer
  • Eddies (Fluid dynamics)
  • Computation

ASJC Scopus subject areas

  • Engineering(all)

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    Natarajan, T., Jewkes, J., Narayanaswamy, R., Chung, Y. M., & Lucey, A. D. (2014). Reynolds averaged and large eddy computations of flow and heat transfer under round jet impingement. In Symposia: Advances in Fluids Engineering Education; Turbomachinery Flow Predictions and Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; Droplet-Surface Interactions; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods (Vol. 1A). [FEDSM2014-21435] American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/FEDSM2014-21435