CaltechAUTHORS
  A Caltech Library Service

Feasibility of Non-Equilibrium Hypersonic Flow Measurements at the Small Particle Hypervelocity Impact Range

Alexeenko, A. A. and Kulakhmetov, M. and Weaver, A. and Slipchenko, M. N. and Mihaly, J. and Adams, M. and Rosakis, A. (2012) Feasibility of Non-Equilibrium Hypersonic Flow Measurements at the Small Particle Hypervelocity Impact Range. In: 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2012-0596. ISBN 9781600869365. https://resolver.caltech.edu/CaltechAUTHORS:20190828-102318872

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20190828-102318872

Abstract

Currently used hypersonic flow models, such as high-enthalpy reaction and energy relaxation rates, are based on experiments conducted at relatively low flow enthalpies and are highly uncertain. This paper presents analysis of the feasibility of calibrating hypersonic flow parameters using free-flight experiments at the Small Particle Hypervelocity Range (SPHIR) at Caltech/JPL. Chemically reacting, nonequilibrium flows around a 2-mm diameter spherical projectile are modeled using the Direct Simulation Monte Carlo (DSMC) method. The flowfields generated by DSMC simulations are used to calculate emission spectra in order to determine the observable radiation in UV/vis spectral range. Bayesian calibration and generalized polynomial chaos expansion (gPCE) techniques are used to assess the sensitivity of observable flow properties to key reaction rates. These techniques are then used to predict how experimental resolution would affect the uncertainty in the calibrated parameters.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.2514/6.2012-596DOIArticle
ORCID:
AuthorORCID
Rosakis, A.0000-0003-0559-0794
Additional Information:© 2012 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.
Group:GALCIT
Other Numbering System:
Other Numbering System NameOther Numbering System ID
AIAA Paper2012-0596
Record Number:CaltechAUTHORS:20190828-102318872
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190828-102318872
Official Citation:Feasibility of Non-Equilibrium Hypersonic Flow Measurements at the Small Particle Hypervelocity Impact Range Alina Alexeenko, Marat Kulakhmetov, Andrew Weaver, M Slipchenko, Jonathan Mihaly, Marc Adams, and Ares Rosakis 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. https://doi.org/10.2514/6.2012-596
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98311
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:28 Aug 2019 18:30
Last Modified:03 Oct 2019 21:39

Repository Staff Only: item control page