Convergence issues on fully-coupled radiative gas dynamic calculations

Tomoko Tsuru; Keisuke Sawada

Convergence issues on fully-coupled radiative gas dynamic calculations

ENG - Aerospace Engineering

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

Abstract

Convergence problems on the fully-coupled calculation of strongly radiating hypersonic flowfields are discussed. Calculations are conducted for the inviscid flow over an axisymmetric blunt body of 1.5m nose radius. The case of the flow Mach number 46.8 is considered. Radiative transfer equation is solved using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The radiative heat flux is calculated two-dimensionally. In the calculation, the governing equations are integrated in time implicitly, but the radiative source term is treated explicitly. It is shown that converged solution can be obtained for strongly radiating flowfield with considerably large CFLnumbers even if the radiative source terms are integrated explicitly.

Original language	English
Publication status	Published - 2000 Dec 1
Event	38th Aerospace Sciences Meeting and Exhibit 2000 - Reno, NV, United States Duration: 2000 Jan 10 → 2000 Jan 13

Other

Other	38th Aerospace Sciences Meeting and Exhibit 2000
Country	United States
City	Reno, NV
Period	00/1/10 → 00/1/13

ASJC Scopus subject areas

Space and Planetary Science
Aerospace Engineering

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title = "Convergence issues on fully-coupled radiative gas dynamic calculations",

abstract = "Convergence problems on the fully-coupled calculation of strongly radiating hypersonic flowfields are discussed. Calculations are conducted for the inviscid flow over an axisymmetric blunt body of 1.5m nose radius. The case of the flow Mach number 46.8 is considered. Radiative transfer equation is solved using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The radiative heat flux is calculated two-dimensionally. In the calculation, the governing equations are integrated in time implicitly, but the radiative source term is treated explicitly. It is shown that converged solution can be obtained for strongly radiating flowfield with considerably large CFLnumbers even if the radiative source terms are integrated explicitly.",

author = "Tomoko Tsuru and Keisuke Sawada",

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T1 - Convergence issues on fully-coupled radiative gas dynamic calculations

AU - Tsuru, Tomoko

AU - Sawada, Keisuke

PY - 2000/12/1

Y1 - 2000/12/1

N2 - Convergence problems on the fully-coupled calculation of strongly radiating hypersonic flowfields are discussed. Calculations are conducted for the inviscid flow over an axisymmetric blunt body of 1.5m nose radius. The case of the flow Mach number 46.8 is considered. Radiative transfer equation is solved using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The radiative heat flux is calculated two-dimensionally. In the calculation, the governing equations are integrated in time implicitly, but the radiative source term is treated explicitly. It is shown that converged solution can be obtained for strongly radiating flowfield with considerably large CFLnumbers even if the radiative source terms are integrated explicitly.

AB - Convergence problems on the fully-coupled calculation of strongly radiating hypersonic flowfields are discussed. Calculations are conducted for the inviscid flow over an axisymmetric blunt body of 1.5m nose radius. The case of the flow Mach number 46.8 is considered. Radiative transfer equation is solved using a model developed earlier which combines Planck, Rosseland and Gray-gas models. The radiative heat flux is calculated two-dimensionally. In the calculation, the governing equations are integrated in time implicitly, but the radiative source term is treated explicitly. It is shown that converged solution can be obtained for strongly radiating flowfield with considerably large CFLnumbers even if the radiative source terms are integrated explicitly.

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M3 - Paper

AN - SCOPUS:84894334139

T2 - 38th Aerospace Sciences Meeting and Exhibit 2000

Y2 - 10 January 2000 through 13 January 2000

ER -

Convergence issues on fully-coupled radiative gas dynamic calculations

Abstract

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ASJC Scopus subject areas

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