Topic
Stefan number
About: Stefan number is a research topic. Over the lifetime, 482 publications have been published within this topic receiving 32056 citations.
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TL;DR: In this article, the dynamic thermal performance of high temperature latent thermal energy storage system packed with spherical capsules is analyzed experimentally and numerically; the spherical capsules are encapsulated by sodium nitrate and air is used as heat transfer fluid.
110 citations
TL;DR: In this article, it is shown that the extent of maximum spread is primarily determined by the Reynolds number and, to a lesser degree, by the Weber number, and that the effect of solidification on droplet spreading is insignificant when the ratio of Stefan number to Prandtl number is much smaller than unity.
Abstract: The paper describes recent developments in modeling formation of plasma spray coatings. Specific attention is paid to the three-dimensional simulation of droplet impact and solidification under plasma spraying conditions. It is shown that the extent of maximum spread is primarily determined by the Reynolds number and, to a lesser degree, by the Weber number. Splashing and break-up is shown to be the result of solidification; fluid instabilities do not play a significant role in this regard. Finally, the effect of solidification on droplet spreading is insignificant when the ratio of Stefan number to Prandtl number is much smaller than unity.
99 citations
TL;DR: In this article, phase change materials encapsulated inside cylindrical enclosures are analyzed for solidification and melting process, and analytical solutions for finding the interface locations at various time steps are obtained.
97 citations
TL;DR: In this article, the authors investigated the inward solidification problem of a phase change material (PCM) encapsulated in a cylindrical/spherical container with a third kind of boundary condition.
95 citations
TL;DR: In this paper, a scale analysis is performed to estimate the extent of the complete phase change process, which is a key factor of designing LHTES systems and the scale analysis results in simplified relationships among different non-dimensional parameters (i.e., Fourier number, Stefan number, Rayleigh number, Nusselt number, porosity of the porous medium, and nano particle volume fraction).
95 citations