Development of an Aerodynamics Code for the Optimisation of Hypersonic Vehicles

Jazra, Thomas; Smart, Michael K.

doi:10.2514/6.2009-1475

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…The initial conditions that satisfied Eqs. (1) and (9) were an α 4.87 deg and a γ 0.49 deg. It was assumed that the accelerator was deployed to these conditions by the first stage booster.…”

Section: Resultsmentioning

confidence: 99%

“…The system is composed of different modules to calculate the effects of vehicle aerodynamics, scramjet propulsion, vehicle mass, and flight trajectory. The aerodynamic data for the vehicle in this study were obtained through HYPAERO [9], the aerodynamics subprogram of MANFRHAD. The performance of the vehicle can then be assessed along a trajectory by a modified version of the Computer Aided Design of Aerospace Concepts (CADAC) code [10].…”

Section: Vehicle Analysis System and Description Of Vehiclementioning

confidence: 99%

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Longitudinal Control Strategy for Hypersonic Accelerating Vehicles

Preller

Smart

2015

Journal of Spacecraft and Rockets

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Section: Resultsmentioning

confidence: 99%

Section: Vehicle Analysis System and Description Of Vehiclementioning

confidence: 99%

Longitudinal Control Strategy for Hypersonic Accelerating Vehicles

Preller

Smart

2015

Journal of Spacecraft and Rockets

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“…Two methods can be selected to calculate the skin-friction contribution to the overall drag coefficient. The first uses a strip theory approach similar to that implemented by Jazra and Smart [24], with the second utilizing previously integrated streamlines. A component build-up method is used, which is particularly necessary in the utilization of streamlines, as large discontinuities across components may result in inaccurate surface velocity interpolation.…”

Section: E Skin-friction Dragmentioning

confidence: 99%

Creation of Design and Analysis Tools for Large Design Space Reusable Launch Vehicle Shape Optimization

Cusick

Kontis

2019

AIAA Aviation 2019 Forum

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A design optimization suite currently under development for arbitrary super-hypersonic vehicles is introduced. A brief review of literature on the subject is presented. Parameterization techniques utilized to obtain realistic geometries of various flying components are discussed. Well known engineering methods for the prediction of inviscid high speed aerodynamic coefficients are outlined, alongside implementation of streamline tracing and mesh interpolation for the calculation of viscous and local condition dependent approaches. Global optimization methods are employed, with detailed discussion on the specific characteristics chosen for this work. Validation cases are presented for the aerodynamic module, comparing computed results to wind tunnel tests gathered in previously published research. An overview of the optimization loop is provided, followed by an aerodynamic design optimization, demonstrating the potential of the combined methodologies.

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“…An example of a surface panel grid is shown in Figure 11. This will be discussed further when HYPAERO, UQ's panel code is introduced (Jazra, Smart, 2009). …”

Section: Meshless Methodsmentioning

confidence: 99%

“…Although a comprehensive design tool, it has several shortcomings. These include an inability to model separation and thus high angles (8°) of attack, interaction effects between bodies or low speed flows (Jazra & Smart, 2009). This means a full aerodynamic database of the SPARTAN flyback ( Figure 10) is not possible.…”

Section: Hypaeromentioning

confidence: 99%

A parametric grid generation tool for the aerodynamic evaluation of hypersonic vehicles

Ward¹

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The structured grid is made up of 265 blocks and is generated using e3prep, the preprocessor and grid generation tool for The University of Queensland's compressible CFD code, Eilmer. Significant modification of vehicle geometry is possible while retaining acceptable grid quality. However, poor quality issues present themselves at swept geometry.In addition to a demonstration of the parametric nature of the tool, results of a proof of concept simulation of the complete vehicle are given. A short forebody study detailing the analysis of a widened, cambered forebody with a flattened windward side was completed as further demonstration. The modified geometry was found to improve the inlet onset flow iii and increase precompression. These results are presented without formal verification and validation and hence considered provisional.Recommendations are made on the continued development of the tool. These primarily address the quality issues preventing full functionality of the tool and include utilising sections of unstructured cells to form a patched grid and combining the current work with GridPro for the generation of a highly smoothed grid. The use of OpenFOAM for subsonic simulation is also discussed along with increased parallelisation of the simulations to decrease runtime.

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Development of an Aerodynamics Code for the Optimisation of Hypersonic Vehicles

Cited by 10 publications

References 20 publications

Longitudinal Control Strategy for Hypersonic Accelerating Vehicles

Longitudinal Control Strategy for Hypersonic Accelerating Vehicles

Creation of Design and Analysis Tools for Large Design Space Reusable Launch Vehicle Shape Optimization

A parametric grid generation tool for the aerodynamic evaluation of hypersonic vehicles

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