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Browsing by Author "North Carolina State University. Mechanical and Aerospace Engineering Department"

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    Hyperbolic heat conduction with temperature-dependent thermal conductivity
    Glass, D. E.; Ozisik, M. Necati; McRae, D. S.; Vick, Brian L. (American Institute of Physics, 1986-03-15)
    Hyperbolic heat conduction in a semi-infinite slab with temperature-dependent thermal conductivity is studied numerically, and the results are compared with those obtained from the classical parabolic equation for the following cases: (a) constant applied temperature at x=0.0, (b) constant applied heat flux at x=0.0, and (c) a pulsed heat source released instantaneously at t=0.0 in the region [] adjacent to an insulated boundary. In addition to changing the temperature profiles, the nonlinear thermal conductivity also altered the speed of the thermal front. An increase in the thermal conductivity increased the wave speed, while a decrease in the thermal conductivity decreased the wave speed.