Design and Build of a Benchtop Hypersonic Wind Tunnel as a Senior Design Project

Solomon, Jason; Tkacik, Peter T.; Dahlberg, Jerry

doi:10.2514/6.2021-3349

Cited by 1 publication

(3 citation statements)

References 6 publications

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“…a. Hypersonic flow experiments are carried out in the Hypersonic Wind Tunnel facility recently designed and built at UNC Charlotte [2][3][4]. Time-dependent schlieren images are obtained for Mach 4.5 flow about a small, solid nosed, missile-shaped body, as well as for Mach 3.5 flow over the same body, modified with an on-nose forward facing cavity.…”

Section: Chapter Overview and Main Resultsmentioning

confidence: 99%

“…Between 2019 and 2021, a blow down hypersonic wind tunnel was designed, built and tested at UNC Charlotte [2][3][4]; see Figure 2. The wind tunnel facility, pictured in Figure 2, consists of a modular/interchangeable bench top de Laval nozzle, a rectangular 25 in 2 cross-section test section, a diffuser, and near-exit silencer/noise baffle.…”

Section: Experiment: Hypersonic Flow Over Solid Nose and Open Nose Mi...mentioning

confidence: 99%

“…A schlieren system is used to image density gradient fields within the test section; experimental details are available in [3,4,8]. For this study, density gradient fields were imaged about a missile body having a solid nose, shown in Figure 3, and an open nose missile body, shown in Figure 4.…”

Section: Experiment: Hypersonic Flow Over Solid Nose and Open Nose Mi...mentioning

confidence: 99%

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Hypersonic Flow over Closed and Open Nose Missile Bodies: Raw and SVD-Enhanced Schlieren Imaging, Numerical Modeling, and Physical Analysis

Watkins¹,

Redford²,

Green³

et al. 2023

Boundary Layer Flows - Modelling, Computation, and Applications of Laminar, Turbulent Incompressible and Compressible Flows

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Understanding and mitigating against high heat loads at leading and blunt aerodynamic surfaces during hypersonic flight represents an ongoing technological challenge. Recent work has shown that the commercial software package, STAR CCM+, can provide reliable predictions of hypersonic aerothermodynamic flow and heating, under a wide range of complex, but common conditions. This chapter presents a preliminary experimental and numerical investigation of hypersonic flow over closed- and open-nose missile bodies, where the latter have been proposed as a means of reducing leading edge heat transfer. Four contributions are presented. First, a novel singular value decomposition (SVD)-based image processing technique is introduced, which significantly enhances the quality of raw schlieren images obtained in high-speed compressible flows. Second, numerically predicted hypersonic flow about a scale-model missile body, obtained using STAR-CCM+, is validated against experimental schlieren image data, an empirical correlation connecting bow shock stand-off distance and shock density ratio, and estimated drag forces. Third, scaling and physical arguments are presented as a means of choosing appropriate gas equations of state and for interpreting results of numerical simulations and experiments. Last, numerical experiments show that the forward facing cavity used in our wind tunnel experiments functions as a heat sink, reducing heat fluxes on the missile body downstream of the cavity.

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Section: Chapter Overview and Main Resultsmentioning

confidence: 99%

Section: Experiment: Hypersonic Flow Over Solid Nose and Open Nose Mi...mentioning

confidence: 99%

Section: Experiment: Hypersonic Flow Over Solid Nose and Open Nose Mi...mentioning

confidence: 99%

See 1 more Smart Citation

Hypersonic Flow over Closed and Open Nose Missile Bodies: Raw and SVD-Enhanced Schlieren Imaging, Numerical Modeling, and Physical Analysis

Watkins¹,

Redford²,

Green³

et al. 2023

Boundary Layer Flows - Modelling, Computation, and Applications of Laminar, Turbulent Incompressible and Compressible Flows

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View full text Add to dashboard Cite

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Design and Build of a Benchtop Hypersonic Wind Tunnel as a Senior Design Project

Cited by 1 publication

References 6 publications

Hypersonic Flow over Closed and Open Nose Missile Bodies: Raw and SVD-Enhanced Schlieren Imaging, Numerical Modeling, and Physical Analysis

Hypersonic Flow over Closed and Open Nose Missile Bodies: Raw and SVD-Enhanced Schlieren Imaging, Numerical Modeling, and Physical Analysis

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