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

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 p...

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Main Authors:	Jack Wetherell, Andrew Garmory, Maciej Skarysz
Format:	Default Conference proceeding
Published:	2021
Subjects:	Combustion Fuels Emissions
Online Access:	https://hdl.handle.net/2134/14500989.v1
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id	rr-article-14500989
record_format	Figshare
spelling	rr-article-145009892021-01-11T00:00:00Z Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing Jack Wetherell (4674145) Andrew Garmory (1249095) Maciej Skarysz (1260498) Combustion Fuels Emissions 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. 2021-01-11T00:00:00Z Text Conference contribution 2134/14500989.v1 https://figshare.com/articles/conference_contribution/Coupled_level_set_volume_of_fluid_simulations_of_prefilming_airblast_atomization_with_adaptive_meshing/14500989 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Combustion Fuels Emissions
spellingShingle	Combustion Fuels Emissions Jack Wetherell Andrew Garmory Maciej Skarysz Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing
description	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.
format	Default Conference proceeding
author	Jack Wetherell Andrew Garmory Maciej Skarysz
author_facet	Jack Wetherell Andrew Garmory Maciej Skarysz
author_sort	Jack Wetherell (4674145)
title	Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing
title_short	Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing
title_full	Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing
title_fullStr	Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing
title_full_unstemmed	Coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing
title_sort	coupled level set volume of fluid simulations of prefilming airblast atomization with adaptive meshing
publishDate	2021
url	https://hdl.handle.net/2134/14500989.v1
_version_	1797821501202759680

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

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