Results 331 to 340 of about 561,587 (376)

Experimental Study of Thermal Contact Conductance Based on Heat-Transfer Theory with Variable Thermal Conductivity

Journal of Testing and Evaluation, 2012
Abstract To calculate the interface temperature drop ΔT during the thermal contact conductance (TCC) testing, an optimization computing method based on the one-dimensional steady heat-transfer theory with variable thermal conductance is proposed in this paper.
Zong Ren Wang, Jun Yang, Mingyuan Yang, Weifang Zhang   +3 more
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Variable Thermal Conductivity, Contact-Aided Cellular Structures for Spacecraft Thermal Control

54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2013
Thermal baseplates are sized to limit high temperature excursions when spacecraft electronics modules are generating peak thermal loads. Because of relatively high nominal conductivity, at low loads makeup heat is required to maintain acceptable temperatures, adding weight associated with batteries, heaters, and thermal control.
Rebecca Stavely, George A. Lesieutre
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Variable thermal properties and thermal relaxation time in hyperbolic heat conduction

27th Aerospace Sciences Meeting, 1989
Numerical solutions were obtained for a finite slab with an applied surface heat flux at one boundary using both the hyperbolic (MacCormack's method) and parabolic (Crank-Nicolson method) heat conduction equations. The effects on the temperature distributions of varying density, specific heat, and thermal relaxation time were calculated.
DAVID GLASS, D. MCRAE
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Loop Heat Pipe with Thermal Control Valve for Variable Thermal Conductance

41st International Conference on Environmental Systems, 2011
It is often desirable to partially or completely shut down a Loop Heat Pipe (LHP), for example, to maintain the temperature of electronics connected to the LHP on a satellite during an eclipse. The standard way to control the LHP is to apply electric power to heat the compensation chamber, as required. The amount of electrical power to shut down an LHP
John Hartenstine, Kara Walker, William Anderson   +2 more
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Transient heat conduction in a composite slab with variable thermal conductivity

International Journal for Numerical Methods in Engineering, 1979
AbstractTransient heat conduction in a composite slab is investigated in the present work by using the orthogonal collocation method. The present numerical method is found to be quite efficient and highly stable even for the power‐type temperature dependence of thermal conductivity which often cuases severe computational instability to many numerical ...
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On a New Turbulent Energy Equation With Variable Thermal Conductivity

Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C, 2008
The present work investigates the energy equation of a general fluid, Newtonian or non-Newtonian, with variable thermal conductivity in turbulent flow. The usual energy equation, without the dissipation terms, is taken into account with the fluctuating terms in the temperature as well as in the thermal conductivity.
GORI, FABIO, Boghi, A.
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Variable Thermal Conductivity Heat Transfer With Symbolic Algebra

Innovations in Engineering Education: Mechanical Engineering Education, Mechanical Engineering/Mechanical Engineering Technology Department Heads, 2005
This paper deals with the analysis of heat transfer in media with variable thermal conductivity. The tool employed is the symbolic algebra package Maple. The specific problems considered are (1) steady conduction in a heat generating plane wall with thermal conductivity increasing as the square of the coordinate, (2) steady conduction in a circular rod
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Influence of variable thermal conductivity and mixed convection on hybrid nanofluid (SWCNT + MWCNT/H_2O) flow over an exponentially elongated sheet with slip conditions

Indian Journal of Physics, 2023
A. Manigandan, Satya Narayana
semanticscholar   +1 more source

Lattice Boltzmann Method Applied to Variable Thermal Conductivity Conduction and Radiation Problems

Journal of Thermophysics and Heat Transfer, 2006
In the present article, application of the lattice Boltzmann method has been extended to solve the energy equation of a problem involving temperature dependent thermal conductivity. To validate the formulation, transient heat conduction in a planar medium with and without temperature dependent thermal conductivity was analyzed.
Nishant Gupta, G. Raghu Chaitanya, Subhash C. Mishra   +2 more
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Thermal Ignition with Variable Thermal Conductivity

IMA Journal of Applied Mathematics, 1982
Lacey, A. A., Wake, G. C.
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