Topic
Thermal radiation
About: Thermal radiation is a research topic. Over the lifetime, 12290 publications have been published within this topic receiving 197186 citations. The topic is also known as: heat radiation.
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TL;DR: In this paper, the problem of unsteady laminar two-dimensional boundary layer flow and heat transfer of an incompressible viscous fluid in the presence of thermal radiation, internal heat generation or absorption, and magnetic field over an exponentially stretching surface subjected to suction with an exponential temperature distribution is discussed numerically.
56 citations
TL;DR: In this article, the entropy generation on the interaction of nanoparticles over a stretching porous sheet with nonlinear thermal radiation was examined and the results for temperature, velocity, Bejan number, and entropy profiles were obtained and investigated by Successive linearization technique and Chebyshev spectral collocation scheme.
56 citations
TL;DR: The current attempt develops a nonlinear mathematical model (Williamson fluid) towards moving surface heated convectively and finds Buongiorno relation has reverse behavior for concentration ϕ(η) of Williamson nanofluid regarding Nt and Nt.
56 citations
Patent•
08 Apr 1976
TL;DR: In this article, a transparent thermal insulating system with controllable transmissivity to visible radiation was proposed, comprising a first layer generally transparent to visible, a second layer generally opaque to visible and spaced from the first layer, partition means for separating the space between the layers into compartments; a thermal radiation suppression device for suppressing thermal radiation transmission; and variable transparency thermal control device for controlling transmisson of visible radiation as a function of temperature.
Abstract: A transparent thermal insulating system having controllable transmissivity to visible radiation comprising a first layer generally transparent to visible radiation, a second layer generally transparent to visible radiation and spaced from the first layer; partition means for separating the space between the layers into compartments; a thermal radiation suppression device for suppressing thermal radiation transmission; and a variable transparency thermal control device for controlling transmisson of visible radiation as a function of temperature.
56 citations
01 Jun 2020
TL;DR: In this paper, the impact of nonlinear thermal radiation with entropy production on the steady flow of magneto-micropolar fluid was studied and the results revealed good relationship with existing ones in literature in the limiting conditions for special cases.
Abstract: Various industrial and engineering operations are accompanied with the phenomena of heating and cooling and in such situations, the construction of relevant thermal devices for use in energy and electronic devices is crucial. For efficient performance of such devices, entropy generation should be reduced in the processes. Hence, this study focuses on the impact of nonlinear thermal radiation with entropy production on the steady flow of magneto-micropolar fluid. The flow is generated by a nonlinear stretchable sheet with the influence of variable fluid properties and convective surface heating condition. The controlling mathematical equations are transmuted from partial to ordinary differential equations by similarity conversion procedures and then numerically integrated using shooting techniques accompanied by Runge-Kutta scheme. The graphs of the main physical quantities affecting the velocity, temperature, entropy generation and Bejan number are displayed and discussed. The comparison of the results revealed good relationship with existing ones in literature in the limiting conditions for special cases. From the analysis, it is found that the growth in the magnitude of Prandtl and Eckert numbers enhance entropy generation while the dominance of viscous and Ohmic heating irreversibility over heat transfer irreversibility is observed with a rise in both parameters due to a decline in Bejan number.
56 citations