CFD reconstruction of hypersonic turbulent shock wave/boundary-layer interaction

Baptie, David (2011). CFD reconstruction of hypersonic turbulent shock wave/boundary-layer interaction B.Sc Thesis, School of Engineering, The University of Queensland.

       
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Author Baptie, David
Thesis Title CFD reconstruction of hypersonic turbulent shock wave/boundary-layer interaction
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2011
Thesis type B.Sc Thesis
Supervisor Russell Boyce
Total pages 77
Language eng
Subjects 09 Engineering
Formatted abstract
An investigation has been conducted into the use of computational fluid dynamics (CFD) methods for the reconstruction and analysis of a fundamental experiment designed to examine shock-wave/boundary-layer interactions (SWBLI). The data acquired in this fundamental experiment provides the basis for the validation of the numerical methods employed in this thesis, allowing a range of modelling techniques and numerical configurations to be implemented and quantifiably examined with regards to their effectiveness in modelling the complex flow phenomena associated with SWBLI.

To investigate the experimental flowfield with the desired precision, the numerical model was divided into two primary sections: the region of boundary layer growth and transition to turbulence associated with the leading edge of the centre-body; and the region of flow encompassing the SWBLI and associated effects. In the process of modelling these sections of flow, specific focus was placed on the numerical modelling processes required to provide highly accurate and reliable solutions, in particular related to mesh creation, model configuration, and turbulence model selection and calibration. From the findings made during this modelling investigation process, conclusions have been made as to the required methodologies and processes required for effective resolution of SWBLI.

Using the strategies developed in the modelling investigation section, a set of full flowfield simulations were executed using a range of turbulence models. The solutions to these simulations were compared to one another, as well as the experimental data, to identify regions of the flow where discrepancies in the solutions are present. A thorough exploration of the numerical solutions in these key regions was then conducted to isolate potential causes for the deviations between the numerical and experimental data. A summary of the findings from this investigation has been presented.

To compliment this work, a list of recommendations for the continuation and refinement of this investigation has been included.
Keyword Boundary layer calculations
CFD based simulation
Hypersonic flows

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
 
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Created: Thu, 25 Sep 2014, 13:49:16 EST by Jessica Minshull on behalf of Scholarly Communication and Digitisation Service