Jul 2026· Journal of Spacecraft and Rockets· pp. 1-10· 0 citations· 9 references
Abstract
The Boundary Layer Transition (BOLT) series of flight experiments was initiated by the United States Air Force Office of Scientific Research in 2017 to study flow phenomena related to hypersonic boundary-layer transition and turbulent flow on low-curvature concave lifting surfaces with highly swept leading edges. This paper details the preflight aerodynamic modeling carried out in support of the BOLT-1B flight experiment, which was launched in September 2024. The modeling approach presented here includes multifidelity analysis meant to anchor a large database of low- to medium-fidelity predictions based on inviscid and correlation-based methods by leveraging a subset of high-fidelity, viscous computations. The efforts of this study were primarily focused on anchoring vehicle drag, static stability, roll-driving, and roll-damping predictions. The resulting aerodynamic database was then used to inform predictions of the scientific conditions for the flight experiment, including trajectory modeling and prediction of flight dynamics.
This study develops an improved state-space model for coflow jet (CFJ) airfoils by incorporating the jet momentum coefficient into the internal state-variable equation. The key contributions are summarized as follows. First, to quantitatively characterize flow separation characteristics of CFJ airfoils, steady and...
Y. Zhao, Bai-Gang Mi, Xuan Bai· Journal of Aerospace Enginee...· 0 citations
The paper highlights major outcomes from nearly a decade of research surrounding the three Boundary Layer Transition/Turbulence flight experiments (BOLT-1A, BOLT-2, and BOLT-1B) and associated preflight and postflight research related to those flights. The intent here is to summarize key findings to date through a revi...
Bradley M. Wheaton, I. Leyva, R. Bowersox et al.· Journal of Spacecraft and Ro...· 0 citations
With the increasing demand for high-fidelity aerodynamic validation benchmarks for advanced civil aircraft design, this paper presents an open-access, high-Reynolds-number transonic wind tunnel dataset for the CHN-T1 standard large aircraft model, generated from systematic tests conducted in the European Transonic...
Vertical Take-Off and Landing (VTOL) aircraft encounter unique aerodynamic challenges during
the transition between hover and forward flight, and accurate modeling of this behavior is therefore
essential. Post-stall and unsteady aerodynamic effects can significantly influence aircraft performance
and stability during t...
J. Kim· American Journal of Student...· 0 citations
This study presents a multifidelity, multi-objective optimization framework for the aerodynamic design of airfoils operating at [Formula: see text] Reynolds numbers in incompressible flow. The framework couples the efficiency of the panel solver XFOIL with the accuracy of the unsteady Reynolds-averaged Navier–Stokes so...
Cibin Joseph, C. A. Natividad, C. Badrya· Journal of Aircraft· 0 citations
Accurate prediction of aerothermal loads under hypersonic thermochemical nonequilibrium conditions is critical for the design of future atmospheric re-entry vehicles. This study presents a comprehensive numerical investigation of the aerodynamic and aerothermal performance of three representative re-entry configuration...
R. Renane, R. Allouche, Ahmed Neche et al.· International Journal of Mec...· 0 citations
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