Browsing Department of Mathematical Science by Author "Kumar, Ajay"

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Exact and approximate solutions of a phase change problem with moving phase change material and variable thermal coefficients

Singh, Abhishek Kumar; Kumar, Ajay; Rajeev (Elsevier B.V., 2018-12-19)

This article explores a phase change problem in a one-dimensional infinite domain x 0 including the time-dependent speed of a phase change material. In this problem, the Dirichlet type of boundary condition is considered, ...
A moving boundary problem with variable specific heat and thermal conductivity

Kumar, Ajay; Singh, Abhishek Kumar; Rajeev (Elsevier B.V., 2020-01)

This article presents a Stefan problem including thermal conductivity and heat capacity as the functions of temperature. At α=β, the exact solutions to the proposed problem are discussed for two different specific cases, ...

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