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A Finite Element Thermal Modelling of Modular Space Radiators
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English
Abstract
A rigorous study of physical phenomena that characterize the energy transfer in a radiative panel, presents serious problems when, aiming at optimizing feasible design solutions, is oriented to the prognostic evaluation of the overall system performance.
Different thermal interaction modes among constitutive components (i.e. headers, tubes, fins, honeycombs) and an intrinsically complex geometry make extremely cumbersome, if not impossible, to operate with a mathematical model featuring infinite degrees of freedom, as is the case for the real system. The need thus arises to build up a model possessing limited degrees of freedom, capable of approximately portraying, yet with specifiable accuracy, the bulk of physical phenomena that actually evolve in the heat rejection system.
In the given frame this work elucidates how the objective may be attained by utilizing the finite element method and how it is also possible to deal with non-linearities stemming from existing boundary conditions.
Authors
Citation
Nervegna, N. and Borio, U., "A Finite Element Thermal Modelling of Modular Space Radiators," SAE Technical Paper 820865, 1982, https://doi.org/10.4271/820865.Also In
References
- “Satellite Power System: Concept Development and Evaluation Program, Vol. IV” November 1981
- Borio U. “Applicazioni del Metodo degli Elementi Finiti allo Studio di Radiatori per Veicoli Spaziali”
- Williams J.L. French R.J. “Space Shuttle Orbiter Radiator System” ASME Paper 77-ENAs-33 July 1977
- Howell H.R. Stalmach D.D. “Space Radiator Trade Studies For the 25 kW Power System” ASME paper 80-ENAS-27 July 1980
- Nervegna N. Zarotti G. L. Borio U. “Moduli a Tubi Alettati per Radiatori Spaziali - Prestazioni Termiche, Metodi di Ottimizzazione” 1981
- Thornton E. A. Wieting A. R. “Finite Element Methodology for Thermal Analysis of Convectively Cooled Structures” AIAA paper 77-187
- Wieting A. R. Thornton E. A. “Finite Element Thermal Analysis of Convectively Cooled Aircraft Structures” 1981
- Cappelli A. “Honeycomb Sandwich Panel Thermal Conductivity”
- Zienkiewicz O. C. 1981
- Elsgolts L. “Differential Equations and the Calculus of Variations” 1977
- Cesari F. “Il Metodo degli Elementi Finiti nei Problemi Termostrutturali” 1976
- Heinrich J.C. Huyakorn P.S. Mitchell A.R. Zienkiewicz O.C. “An Upwind Finite Element Scheme for Two-Dimensional Convective Transport Equation” 1977
- Heinrich J.C. Zienkiewicz O.C. “Quadratic Finite Element Schemes for Two-Dimensional Convective Transport Problems” 1977
- Hughes T.J. “A Simple Scheme for Developing Upwind Finite Elements” 1978
- Leach J.W. Stalmach D.O. “Optimum Design of Spacecraft Radiators for Large Capacity or Long Duration Mission Applications” ASME paper 79-ENAs-10 July 1979