Hdl Handle:
http://hdl.handle.net/10545/620667
Title:
Assessment of URANS approach for predicting twin impinging jets in a cross-flow
Authors:
Webb-Martin, S; Yang, Zhiyin ( 0000-0002-6629-1360 )
Abstract:
A very complex flow field is present when a vertical/short take-off and landing (VSTOL) aircraft is operating in ground effect. One major concern for this kind of aircraft in ground effect is the possibility of ingestion of hot gases from the jet engine exhausts back into the engine, known as hot gas ingestion (HGI), which can increase the intake air temperature and also reduce the oxygen content in the intake air, potentially leading to compressor stall, low combustion efficiency and causing a dramatic loss of lift. It is therefore important for these flow features to be identified and modelled accurately through numerical simulations. This flow field can be represented by the configuration of twin impinging jets in a cross-flow. Accurate prediction of this complicated flow field under the Reynolds Averaged Navier-Stokes (RANS) approach (current practise in industry) is a great challenge as previous studies suggest that some important flow features cannot be captured by the Steady-RANS (SRANS) approach even with a second order Reynolds Stress Model (RSM). This paper presents a numerical study of this flow using the UnsteadyRANS approach (URANS) with a RSM and assess the capability of the URANS approach by comparing the results against the experimental data and the SRANS predictions.
Affiliation:
University of Derby
Citation:
Webb-Martin, S and Yang, Zhiyin (2012) Assessment of URANS approach for predicting twin impinging jets in a cross-flow. In: 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 15-18th, July, Malta.
Journal:
Proceedings of the 9 th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
Issue Date:
Jul-2012
URI:
http://hdl.handle.net/10545/620667
Additional Links:
http://edas.info/web/hefat2012/home.html; http://sro.sussex.ac.uk/40252/
Type:
Article
Language:
en
Appears in Collections:
Department of Mechanical Engineering & the Built Environment

Full metadata record

DC FieldValue Language
dc.contributor.authorWebb-Martin, Sen
dc.contributor.authorYang, Zhiyinen
dc.date.accessioned2016-10-28T15:46:03Z-
dc.date.available2016-10-28T15:46:03Z-
dc.date.issued2012-07-
dc.identifier.citationWebb-Martin, S and Yang, Zhiyin (2012) Assessment of URANS approach for predicting twin impinging jets in a cross-flow. In: 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 15-18th, July, Malta.en
dc.identifier.urihttp://hdl.handle.net/10545/620667-
dc.description.abstractA very complex flow field is present when a vertical/short take-off and landing (VSTOL) aircraft is operating in ground effect. One major concern for this kind of aircraft in ground effect is the possibility of ingestion of hot gases from the jet engine exhausts back into the engine, known as hot gas ingestion (HGI), which can increase the intake air temperature and also reduce the oxygen content in the intake air, potentially leading to compressor stall, low combustion efficiency and causing a dramatic loss of lift. It is therefore important for these flow features to be identified and modelled accurately through numerical simulations. This flow field can be represented by the configuration of twin impinging jets in a cross-flow. Accurate prediction of this complicated flow field under the Reynolds Averaged Navier-Stokes (RANS) approach (current practise in industry) is a great challenge as previous studies suggest that some important flow features cannot be captured by the Steady-RANS (SRANS) approach even with a second order Reynolds Stress Model (RSM). This paper presents a numerical study of this flow using the UnsteadyRANS approach (URANS) with a RSM and assess the capability of the URANS approach by comparing the results against the experimental data and the SRANS predictions.en
dc.language.isoenen
dc.relation.urlhttp://edas.info/web/hefat2012/home.htmlen
dc.relation.urlhttp://sro.sussex.ac.uk/40252/en
dc.subjectURANSen
dc.subjectImpinging Jetsen
dc.subjectAeronautical engineeringen
dc.titleAssessment of URANS approach for predicting twin impinging jets in a cross-flowen
dc.typeArticleen
dc.contributor.departmentUniversity of Derbyen
dc.identifier.journalProceedings of the 9 th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen
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