Cavity flameholding in an optical axisymmetric scramjet in Mach 4.5 flows

Liu, Qili; Baccarella, Damiano; Landsberg, Will O.; Veeraragavan, Ananthanarayanan; Lee, Tonghun

doi:10.1016/j.proci.2018.08.037

Cited by 69 publications

(21 citation statements)

References 21 publications

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“…The Figure 11 plots the normalised scramjet wall pressure distribution, comparing the 2-D axisymmetric simulation data to the experimental data obtained from an earlier study [2].…”

Section: Flowfield Validationmentioning

confidence: 99%

“…This discussion simply assesses and confirms the feasibility of treating the scramjet flow as 2-D axisymmetric for both the no injection and ethylene injection first-pass simulation studies conducted here. The 3-D simulation studies performed by Liu et al [2] have been used as a reference point and guide for the preparation of the 2-D axisymmetric simulation studies, which unlike the 3-D simulation studies, were able to include/incorporate turbulence modelling (i.e. the simulation flowfields corresponding to the 3-D studies assume laminar flow throughout the engine).…”

Section: Flowfield Validationmentioning

confidence: 99%

“…the simulation flowfields corresponding to the 3-D studies assume laminar flow throughout the engine). The 3-D simulation results have already been validated against experimental data [2]. Details of the flow conditions used are presented in the last section.…”

Section: Flowfield Validationmentioning

confidence: 99%

“…Block and cell structuring are automated and optimised (based on the topology/wireframe) much more efficiently and effectively (this can be controlled/influenced, to some degree, by the user through the surface and topology design). The 2-D grids were based off the symmetry plane topology of the 3-D wedge grid, for which the files were provided [2]. GridPro in particular still assumes that the separately saved plane of topology points corresponds to a 3-D workspace and hence only allows the use of 3-D surfaces to define the geometry.…”

Section: Grid Development and Considerationsmentioning

confidence: 99%

“…This project aimed to explore the effects of cavity geometry variations (outside the basic design environment) on flameholder performance within a dual-mode, axisymmetric scramjet using UIUC's conditions [2]. The primary objectives were to obtain a set of optimised cavity designs that addressed design requirements such as minimised losses and enhanced mixing, and to further encourage cavity design variation (CDV) studies in flameholder research.…”

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confidence: 99%

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The numerous challenges, issues and tasks experienced throughout this project could not have been faced and overcome in any way without the unmeasurable guidance and support, abundant feedback and brilliant advice I was fortunate enough to receive from the following group of individuals. I would therefore like to acknowledge, My supervisor, Dr. Ananthanarayanan Veeraragavan, who has relentlessly made an effort to ensure I was able to complete the project to my level of satisfaction. At every challenge faced by me and my colleague, his input, in any shape, way or form, enabled us to rapidly overcome the associated hindrances and difficulties. Mr. Will Landsberg, the PhD research fellow I was corresponding with. Although he had mentioned many times that this was "just his job", the degree to which he involved and committed himself to ensuring our work could be completed successfully was unparalleled. Along with Anand, the collective amount of knowledge and understanding that I had the privilege to access and receive from both of them has been nothing less than priceless and of immense significance to me as a developing engineer. My highly understanding and intelligent colleague and friend, Lachlan Arundell, for his never-ending entertainment and humor, support, advice, feedback and will to tackle and overcome seemingly never-ending challenges. Witnessing his dedication has driven and enabled me to produce the standard of work presented here. Dr. Rowan Gollan, Dr. Peter Jacobs and Mr. Will Landsberg for their rapid responses to issues/bugs/limitations in the Eilmer4 source code and dedication to updating the code for immediate use in project related tasks. Dr. Vincent Wheatley for swiftly providing us with access to both GridPro and Raijin so that we could conduct our work without delay. This research study/project was undertaken with the assistance of resources and services from The University of Queensland's Tinaroo HPC and The National Computational Infrastructure's (NCI) Raijin HPC, without which the results presented here could not be obtained. I would finally and ultimately like to acknowledge my family for the continuous support and understanding I have received from them throughout.

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“…The Figure 11 plots the normalised scramjet wall pressure distribution, comparing the 2-D axisymmetric simulation data to the experimental data obtained from an earlier study [2].…”

Section: Flowfield Validationmentioning

confidence: 99%

Section: Flowfield Validationmentioning

confidence: 99%

Section: Flowfield Validationmentioning

confidence: 99%

Section: Grid Development and Considerationsmentioning

confidence: 99%

mentioning

confidence: 99%

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