Internal Convection Effects in Thermal Models of Space Vehicles

Hsia, H. M.; Bliek, J.A. Van der

doi:10.21236/ad0646770

1967

DOI: 10.21236/ad0646770

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Internal Convection Effects in Thermal Models of Space Vehicles

H. M. Hsia¹,

J.A. Van der Bliek²

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1968

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“…In Ref. 1, the effect of internal convection on the temperature of a spacecraft model of arbitrary shape, subjected to parallel radiation, was considered, and the transient temperatures were calculated. With the aid of numerical results, the conditions under which convection can be neglected were determined.…”

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Effect of Internal Radiation on the Temperature Distribution of a Spherical Shell

Todd¹,

Bliek²,

Hsia³

1968

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This report is a continuation of a study of the effects of internal heat transfer on the temperature of hollow spacecraft and the requirements for thermal modeling. Considered herein is the effect of internal heat transfer by radiation on the temperature distribution. The equation governing the heat transfer of a spherical shell exposed to parallel radiation is derived; conduction and radiation are considered. The general equation is simplified by assuming steady state, and a numerical method is given to solve the steady state equation. A computer program is described which employs the method. Solutions of the steady state equation are graphically presented and discussed. The requirements for temperature preservation in thermal modeling are derived. The possibility of thermal modeling without temperature preservation is discussed. It is observed that for an inside emissivity to outside emissivity ratio greater than one, the requirement for duplication of the other dimensionless ratio can be relaxed.

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confidence: 99%

Effect of Internal Radiation on the Temperature Distribution of a Spherical Shell

Todd¹,

Bliek²,

Hsia³

1968

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Internal Convection Effects in Thermal Models of Space Vehicles

Cited by 1 publication

References 0 publications

Effect of Internal Radiation on the Temperature Distribution of a Spherical Shell

Effect of Internal Radiation on the Temperature Distribution of a Spherical Shell

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