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Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing

conference contribution
posted on 28.04.2021, 14:39 authored by Jack Wetherell, Andrew GarmoryAndrew Garmory, Maciej Skarysz
The fuel atomisation process and the resultant spray affects nearly all aspects of combustion system performance, and must be well understood to enable the design of future combustion systems. The design of a fuel injector makes both numerical and experimental testing difficult, so simplified test pieces are often used, however, this does not accurately capture atomisation mechanisms and fuel distributions. This paper presents a computational method combining a Coupled Level Set Volume of Fluid model with Adaptive Mesh Refinement. A simple prefilmer has been used to validate the method. Comparisons of the flow field and ligament length distributions show good agreement with published DNS data. The use of AMR allows a lower total cell count, and so a reduction in computational cost of over 60% compared to previously reported results for the same case has been achieved. Further work will look to apply this method to more realistic injector geometry.

Funding

Theme 2: Multi-Physics and Multi-Functional Simulation Methods.

Engineering and Physical Sciences Research Council

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EPSRC Centre for Doctoral Training in Gas Turbine Aerodynamics

Engineering and Physical Sciences Research Council

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Proposal for a Tier 2 Centre - HPC Midlands Plus

Engineering and Physical Sciences Research Council

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History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

Proceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition

Volume

4A: Combustion, Fuels, and Emissions

Publisher

ASME

Version

AM (Accepted Manuscript)

Rights holder

© ASME

Publisher statement

This paper was accepted for publication in the Proceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition and the definitive published version is available at https://doi.org/10.1115/GT2020-14213.

Publication date

2021-01-11

Copyright date

2020

ISBN

9780791884126

Other identifier

Paper No: GT2020-14213

Language

en

Location

Virtual, Online

Event dates

21st September 2020 - 25th September 2020

Depositor

Jack Wetherell. Deposit date: 28 April 2021

Article number

V04AT04A006

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