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NUMERICAL STUDY ON AERODYNAMIC HEAT OF HYPERSONIC FLIGHT

ABSTRACT
Accurate prediction of the shock wave has a significant effect on the development of space transportation vehicle or exploration missions. Taking Lobb sphere as the example, the aerodynamic heat of hypersonic flight in different Mach numbers is simulated by the finite volume method. Chemical reactions and non-equilibrium heat are taken into account in this paper, where convective flux of the space term adopts the Roe format, and discretization of the time term is achieved by backward Euler algorithm. The numerical results reveal that thick mesh can lead to accurate prediction, and the thickness of the shock wave decreases as grid number increases. Furthermore, most of kinetic energy converts into internal energy crossing the shock wave.
KEYWORDS
PAPER SUBMITTED: 2015-11-06
PAPER REVISED: 2016-02-01
PAPER ACCEPTED: 2016-02-21
PUBLISHED ONLINE: 2016-08-13
DOI REFERENCE: https://doi.org/10.2298/TSCI1603939H
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE 3, PAGES [939 - 944]
REFERENCES
  1. Li, W. J., et al, Nonlinear Analysis on Thermal Behavior of Charring Materials with Surface Ablation, International Journal of Heat and Mass Transfer, 84 (2015), May, pp. 245-252
  2. Li, W. J., et al., A Nonlinear Pyrolysis Layer Model for Analyzing Thermal Behavior of Charring Ablator, International Journal of Thermal Science, 98 (2015), Dec., pp. 104-112
  3. Li, W. J., et al., Thermochemical Ablation of Carbon/Carbon Composites with Nonlinear Thermal Conductivity, Thermal Science, 18 (2014), 5, pp. 1625-1629
  4. Tchuen, G., et al., Numerical Study of Non-Equilibrium Weakly Ionized Air Flow Past Blunt Bodies, International Journal of Numerical Methods for Heat & Fluid Flow, 15 (2005), 6, pp. 588-610
  5. Boyd, I. D., et al., Modeling of Stardust Entry at High Altitude, Part 1: Flowfield Analysis, Journal of Spacecraft and Rockets, 47 (2010), 5, pp. 708-717
  6. Park, C. A., Review of Reaction Rates in High Temperature Air, Proceedings, 24th AIAA Thermophysics

© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence