Assessment of Computational-Fluid-Dynamics-Based Response Surface Database for Ares I Supersonic Ascent Aerodynamics. Hanke, J. L. Journal of Spacecraft and Rockets, 49(4):632–643, 2012.
Assessment of Computational-Fluid-Dynamics-Based Response Surface Database for Ares I Supersonic Ascent Aerodynamics [link]Paper  doi  abstract   bibtex   
During the development of the Ares I crew launch vehicle, a wind-tunnel mechanical failure delayed delivery of the ascent aerodynamics database for supersonic Mach numbers. An interim database developed from computational simulations mitigated the impact of the delay. The Ares I aerodynamics team built the interim database using radial basis functions to model the aerodynamic coefficients and also estimated the uncertainty using the computational data available at the time. The database was updated using the wind-tunnel results after the test was completed, and the team assessed the quality of the computationally based database relative to the final experimentally based database, both qualitatively and quantitatively. The computationally based database closely matched the general behavior of the experimentally based database, and the computationally based database uncertainty intervals contained nearly all of the experimentally based database data. This assessment confirms that a reasonable aerodynamic database for launch vehicles at supersonic conditions can be constructed using only computational data, provided that sufficient knowledge of the physics and expected behavior is available. The assessment also demonstrated that the nonparametric response surface model used to develop the database adequately modeled complex behavior throughout a large data space using relatively sparse data.
@article{hanke_assessment_2012,
	title = {Assessment of {Computational}-{Fluid}-{Dynamics}-{Based} {Response} {Surface} {Database} for {Ares} {I} {Supersonic} {Ascent} {Aerodynamics}},
	volume = {49},
	issn = {0022-4650},
	url = {http://arc.aiaa.org/doi/abs/10.2514/1.A32190 http://dx.doi.org/10.2514/1.A32190},
	doi = {10.2514/1.A32190},
	abstract = {During the development of the Ares I crew launch vehicle, a wind-tunnel mechanical failure delayed delivery of the ascent aerodynamics database for supersonic Mach numbers. An interim database developed from computational simulations mitigated the impact of the delay. The Ares I aerodynamics team built the interim database using radial basis functions to model the aerodynamic coefficients and also estimated the uncertainty using the computational data available at the time. The database was updated using the wind-tunnel results after the test was completed, and the team assessed the quality of the computationally based database relative to the final experimentally based database, both qualitatively and quantitatively. The computationally based database closely matched the general behavior of the experimentally based database, and the computationally based database uncertainty intervals contained nearly all of the experimentally based database data. This assessment confirms that a reasonable aerodynamic database for launch vehicles at supersonic conditions can be constructed using only computational data, provided that sufficient knowledge of the physics and expected behavior is available. The assessment also demonstrated that the nonparametric response surface model used to develop the database adequately modeled complex behavior throughout a large data space using relatively sparse data.},
	number = {4},
	journal = {Journal of Spacecraft and Rockets},
	author = {Hanke, Jeremy L.},
	year = {2012},
	pages = {632--643}
}

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