Behavior of two-temperature model in intermediate hypersonic regime

Michiko Furudate; Satoshi Nonaka; Keisuke Sawada

doi:10.2514/6.1999-223

Behavior of two-temperature model in intermediate hypersonic regime

Michiko Furudate, Satoshi Nonaka, Keisuke Sawada

ENG - Aerospace Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

Shock stand-off distances for a sphere are calculated to examine behavior of Park’s two-temperature model in intermediate hypersonic flow. Calculations are csrried out for three distinct binary scaling parameter values, corresponding to nearly frozen, nonequilibrium, and nearly equilibrium flows, respectively. The obtained shock stand-off distances are compared quantitatively with the experimental data measured in ballistic range. It is shown that the two-temperature model generally well reproduces the shock stand-off distances in intermediate hypersonic flows, but tends to loose its accuracy where considerable vibrational excitation occurs but chemical reactions are nearly frozen.

Original language	English
DOIs	https://doi.org/10.2514/6.1999-223
Publication status	Published - 1999 Jan 1
Event	37th Aerospace Sciences Meeting and Exhibit, 1999 - Reno, United States Duration: 1999 Jan 11 → 1999 Jan 14

Other

Other	37th Aerospace Sciences Meeting and Exhibit, 1999
Country	United States
City	Reno
Period	99/1/11 → 99/1/14

ASJC Scopus subject areas

Space and Planetary Science
Aerospace Engineering

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10.2514/6.1999-223

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title = "Behavior of two-temperature model in intermediate hypersonic regime",

abstract = "Shock stand-off distances for a sphere are calculated to examine behavior of Park{\textquoteright}s two-temperature model in intermediate hypersonic flow. Calculations are csrried out for three distinct binary scaling parameter values, corresponding to nearly frozen, nonequilibrium, and nearly equilibrium flows, respectively. The obtained shock stand-off distances are compared quantitatively with the experimental data measured in ballistic range. It is shown that the two-temperature model generally well reproduces the shock stand-off distances in intermediate hypersonic flows, but tends to loose its accuracy where considerable vibrational excitation occurs but chemical reactions are nearly frozen.",

author = "Michiko Furudate and Satoshi Nonaka and Keisuke Sawada",

year = "1999",

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AU - Furudate, Michiko

AU - Nonaka, Satoshi

AU - Sawada, Keisuke

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Shock stand-off distances for a sphere are calculated to examine behavior of Park’s two-temperature model in intermediate hypersonic flow. Calculations are csrried out for three distinct binary scaling parameter values, corresponding to nearly frozen, nonequilibrium, and nearly equilibrium flows, respectively. The obtained shock stand-off distances are compared quantitatively with the experimental data measured in ballistic range. It is shown that the two-temperature model generally well reproduces the shock stand-off distances in intermediate hypersonic flows, but tends to loose its accuracy where considerable vibrational excitation occurs but chemical reactions are nearly frozen.

AB - Shock stand-off distances for a sphere are calculated to examine behavior of Park’s two-temperature model in intermediate hypersonic flow. Calculations are csrried out for three distinct binary scaling parameter values, corresponding to nearly frozen, nonequilibrium, and nearly equilibrium flows, respectively. The obtained shock stand-off distances are compared quantitatively with the experimental data measured in ballistic range. It is shown that the two-temperature model generally well reproduces the shock stand-off distances in intermediate hypersonic flows, but tends to loose its accuracy where considerable vibrational excitation occurs but chemical reactions are nearly frozen.

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Y2 - 11 January 1999 through 14 January 1999

ER -