Computational and experimental investigation of cavity flowfields

Baysal, Oktay; Stallings, R. L.

doi:10.2514/3.9842

Cited by 48 publications

(3 citation statements)

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“…The most extensive numerical simulations performed previously were primarily two-dimensional in nature, and the corresponding results were usually validated against three-dimensional models. Numerical studies for flow over cavities gained traction during the 1980s [5], [6], [7], [8]. Computational studies became essential to understand flow physics and to perform turbulence modelling.…”

Section: Introductionmentioning

confidence: 99%

“…Quantitative comparison with experimental data in terms of mean static pressure, overall acoustic sound pressure level, and acoustic frequency spectra within the cavity was deemed mostly favorable; however, the numerical solution appeared to overpredict the amplitude of the harmonic frequencies. Baysal O. and Stallings R. [6] conducted a two-dimensional numerical analysis to compute the flows at the half-width symmetry plane of the cavity. The shocks were captured, and turbulence was algebraically modelled.…”

Section: Introductionmentioning

confidence: 99%

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Numerical analysis on three-dimensionality of supersonic flow over open cavities

Seth

2024

Preprint

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This study utilizes commercially available Computational Fluid Dynamics (CFD) software to analyze how variations in the length-to-width (L/W) ratio impact open cavity flow characteristics under supersonic conditions (Mach number of 1.5). By maintaining a constant length-to-depth (L/D) ratio, and varying cavity width, the focus of this study lies on understanding how changes in cavity geometry influence flow patterns. Key parameters such as pressure coefficients, velocity distributions, streamlines, and vortices are investigated to gain insights into the three-dimensional nature of flow within the cavities. By varying width, while keeping cavity length and depth constant, the study aims to provide a deeper understanding of flow phenomena within such cavities. The chosen Mach number ensures consistency across simulations, facilitating a focused exploration of the effects of cavity geometry on flow features.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical analysis on three-dimensionality of supersonic flow over open cavities

Seth

2024

Preprint

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“…[1][2][3][4] and computational (refs. [5][6][7][8][9] investigations on the flowfields of two and three dimensional rectangular cavities. Although work has been conducted from the subsonic to hypersonic regimes, most of the effort has been concentrated on the supersonic speed regime.…”

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confidence: 99%

Navier-Stokes Calculations of Transonic Flows Past Cavities

Srinivasan

Baysal

1991

Journal of Fluids Engineering

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A systematic literature review based on different fuel injection strategies used in scramjet combustors

Gugulothu

2019

Heat Trans. Asian Res.

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A supersonic combustion ramjet engine is an airbreathing propulsive system aimed at futuristic hypersonic vehicles. The profound advantages observed in the area of defence applications has attracted researchers' attention towards improving the fluid flow dynamics of scramjet engines. The present effort summarizes the fundamental problems and latest advances in fuel injection techniques. Improvements and application of modern fuel injection technologies have a profound impact on the scramjet engine, increasing capacity in terms of flight speed, efficiency in fuel mixing, and combustion. The fuel injection system has a direct impact on the engine's combustion processes, determining the scramjet engine's thrust power and its flight speed. A systematic database including brief descriptions of mixing enhancement mechanisms was analyzed numerically and experimentally, identifying the needed and existing fuel injection strategies. The numerical and computational analysis directly related to the experimental investigations is also included. K E Y W O R D S cavity, propulsion system, scramjet, transverse injection, vortex generator T A B L E 4 Active communities and their focus of research StudiesResearch focus

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Computational and experimental investigation of cavity flowfields

Cited by 48 publications

References 1 publication

Numerical analysis on three-dimensionality of supersonic flow over open cavities

Numerical analysis on three-dimensionality of supersonic flow over open cavities

Navier-Stokes Calculations of Transonic Flows Past Cavities

A systematic literature review based on different fuel injection strategies used in scramjet combustors

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