Developing a Numerical Model of the Virginia Tech Stability Wind Tunnel for Uncertainty Quantification Based On Real-World Geometry

Szőke, Máté; Vishwanathan, Vidya; Loeschen, Tim; Gargiulo, Aldo; Fritsch, Daniel J.; Duetsch-Patel, Julie E.; Borgoltz, Aurélien; Roy, Christopher J.; Lowe, K. Todd; Devenport, William J.

doi:10.2514/6.2020-0343

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…This property of closed-section wind tunnels is usually quantified using the buoyancy parameter, which is a measure of static pressure drop per unit length along the tunnel centerline. Considering the SWT, the buoyancy was found to be approximately 15 Pa/m at M ≈ 0.2 [36]. Hence, the boundary layer in the currently evaluated empty tunnel configuration can be considered as a zero pressure gradient boundary layer.…”

Section: Arrival Timesmentioning

confidence: 97%

“…windows. An important finding of Devenport et al [37] was that the flow over the Kevlar windows observe the behavior of a no-slip boundary layer, therefore, results obtained using a hard wall test section [36,[38][39][40] could be a straightforward way to define the shear characteristics over the Kevlar windows, assuming an empty test section configuration. Using the CFD simulations of Szőke et al [35], the boundary layer growth for an empty tunnel configuration at the tunnel mid-height is given in Fig.…”

Section: Arrival Timesmentioning

confidence: 99%

See 1 more Smart Citation

Propagation characteristics of laser-induced acoustic sources in hybrid anechoic wind tunnels

Szőke

Devenport

2021

Journal of Sound and Vibration

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Section: Arrival Timesmentioning

confidence: 97%

Section: Arrival Timesmentioning

confidence: 99%

Propagation characteristics of laser-induced acoustic sources in hybrid anechoic wind tunnels

Szőke

Devenport

2021

Journal of Sound and Vibration

Self Cite

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Boundary layer flow over a bump and the three-dimensional law of the wall

Duetsch-Patel

Gargiulo

Borgoltz

et al. 2023

Journal of Turbulence

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Fluid–Structure Interaction Modeling of Flowfields Within Kevlar-Walled Wind Tunnels

Szőke

Borgoltz

Devenport

2022

Journal of Aircraft

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A detailed three-dimensional (3D) two-way coupled fluid–structure interaction simulation of a hybrid anechoic wind tunnel (HAWT) test section is presented with modeling all important effects, namely, turbulence, Kevlar wall porosity, and deflection. The complete 3D flowfield around a 3-ft chord NACA0012 placed into a HAWT test section is assessed. The Kevlar deflections are captured using finite element analysis, whereas 3D Reynolds-averaged Navier–Stokes computational fluid dynamics simulations are used to resolve the flowfield. Source terms are used to model the transpiration flow across the pores of the Kevlar fabric. Results are validated against an extensive experimental dataset. Aerodynamic properties of the airfoil are validated using airfoil pressure coefficients, airfoil wake pressure coefficients, and lift and drag coefficients. Boundary effects are validated against Kevlar wall pressure coefficients, Kevlar displacement, and transpiration velocity through the Kevlar fabric. Overall, a good agreement has been found among all comparisons presented. While some minor discrepancies were observed, these primarily stem from geometrical irregularities of the model and wind tunnel unresolved in the computational fluid dynamics. Overall, the fluid–structure interaction model now enables a detailed assessment of HAWTs to enhance their performance and can support experimental testing.

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Developing a Numerical Model of the Virginia Tech Stability Wind Tunnel for Uncertainty Quantification Based On Real-World Geometry

Cited by 5 publications

References 8 publications

Propagation characteristics of laser-induced acoustic sources in hybrid anechoic wind tunnels

Propagation characteristics of laser-induced acoustic sources in hybrid anechoic wind tunnels

Boundary layer flow over a bump and the three-dimensional law of the wall

Fluid–Structure Interaction Modeling of Flowfields Within Kevlar-Walled Wind Tunnels

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