Computation of hypersonic radiating flowfield over a blunt body

Takeharu Sakai; Tomoko Tsuru; Keisuke Sawada

Computation of hypersonic radiating flowfield over a blunt body

Takeharu Sakai, Tomoko Tsuru, Keisuke Sawada

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

Abstract

A numerical method for calculating a strongly radiating axisymmetric flow field is developed. Radiative heat flux is determined one-, two-, and three-dimensionally using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The flow solution is obtained with a fully implicit time-marching method using a full block matrix inversion. The method is applied for calculating the environments of a blunt body flying up to the velocity of 16 km/s. The calculated results are compared with the experimental data conducted in a ballistic range. The results show the calculated radiative heat; flux values are lower than the measured value by a factor of about five. The possible reasons for these discrepancies are given.

Original language	English
Publication status	Published - 1999
Externally published	Yes
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/Territory	United States
City	Reno
Period	99/1/11 → 99/1/14

ASJC Scopus subject areas

Space and Planetary Science
Aerospace Engineering

Cite this

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title = "Computation of hypersonic radiating flowfield over a blunt body",

abstract = "A numerical method for calculating a strongly radiating axisymmetric flow field is developed. Radiative heat flux is determined one-, two-, and three-dimensionally using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The flow solution is obtained with a fully implicit time-marching method using a full block matrix inversion. The method is applied for calculating the environments of a blunt body flying up to the velocity of 16 km/s. The calculated results are compared with the experimental data conducted in a ballistic range. The results show the calculated radiative heat; flux values are lower than the measured value by a factor of about five. The possible reasons for these discrepancies are given.",

author = "Takeharu Sakai and Tomoko Tsuru and Keisuke Sawada",

note = "Funding Information: Has been supported by JSPS Research Fellowships for Young Scientists. Publisher Copyright: {\textcopyright} 1998 The A merican Institute of Aeronautics and Astronautics Inc. All rights reserved.; 37th Aerospace Sciences Meeting and Exhibit, 1999 ; Conference date: 11-01-1999 Through 14-01-1999",

year = "1999",

language = "English",

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TY - CONF

T1 - Computation of hypersonic radiating flowfield over a blunt body

AU - Sakai, Takeharu

AU - Tsuru, Tomoko

AU - Sawada, Keisuke

N1 - Funding Information: Has been supported by JSPS Research Fellowships for Young Scientists. Publisher Copyright: © 1998 The A merican Institute of Aeronautics and Astronautics Inc. All rights reserved.

PY - 1999

Y1 - 1999

N2 - A numerical method for calculating a strongly radiating axisymmetric flow field is developed. Radiative heat flux is determined one-, two-, and three-dimensionally using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The flow solution is obtained with a fully implicit time-marching method using a full block matrix inversion. The method is applied for calculating the environments of a blunt body flying up to the velocity of 16 km/s. The calculated results are compared with the experimental data conducted in a ballistic range. The results show the calculated radiative heat; flux values are lower than the measured value by a factor of about five. The possible reasons for these discrepancies are given.

AB - A numerical method for calculating a strongly radiating axisymmetric flow field is developed. Radiative heat flux is determined one-, two-, and three-dimensionally using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The flow solution is obtained with a fully implicit time-marching method using a full block matrix inversion. The method is applied for calculating the environments of a blunt body flying up to the velocity of 16 km/s. The calculated results are compared with the experimental data conducted in a ballistic range. The results show the calculated radiative heat; flux values are lower than the measured value by a factor of about five. The possible reasons for these discrepancies are given.

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M3 - Paper

AN - SCOPUS:84983099251

T2 - 37th Aerospace Sciences Meeting and Exhibit, 1999

Y2 - 11 January 1999 through 14 January 1999

ER -

Computation of hypersonic radiating flowfield over a blunt body

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ASJC Scopus subject areas

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