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- W4290565437 abstract "A non-classical initial and boundary value problem for a non-homogeneous one-dimensional heat equation for a semi-infinite material with a zero temperature boundary condition at the face $x=0$ is studied with the aim of finding explicit solutions. It is not a standard heat conduction problem because a heat source $-Phi(x)F(V(t),t)$ is considered, where $V$ represents the heat flux at $x=0$. Explicit solutions independents of the space or temporal variables are given. Solutions with separated variables when the data functions are defined from the solution $X=X(x)$ of a linear initial value problem of second order and the solution $T=T(t)$ of a non-linear (in general) initial value problem of first order which involves the function $F$, are also given and explicit solutions corresponding to different definitions of $F$ are obtained. A solution by an integral representation depending on the heat flux at $x=0$ for the case in which $F=F(V,t)=nu V$, $nu>0$, is obtained and explicit expressions for the heat flux at $x=0$ and for its corresponding solution are calculated when $h=h(x)$ is a potential function and $Phi=Phi(x)$ is given by $Phi(x)=lambda x$, $Phi(x)=-musinh{(lambda x)}$ or $Phi(x)=-musin{(lambda x)}$, $lambda>0$ and $mu>0$. The limit when the temporal variable $t$ tends to $+infty$ of each explicit solution obtained in this paper is studied and the controlling effects of the source term $-Phi F$ are analysed by comparing the asymptotic behavior of each solution with the asymptotic behavior of the solution to the same problem but in absence of source term. Finally, a relationship between this problem with another non-classical initial and boundary value problem for the heat equation is established and explicit solutions for this second problem are also obtained." @default.
- W4290565437 created "2022-08-08" @default.
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- W4290565437 date "2014-10-15" @default.
- W4290565437 modified "2023-09-28" @default.
- W4290565437 title "Explicit solutions for a non-classical heat conduction problem for a semi-infinite strip with a non-uniform heat source" @default.
- W4290565437 doi "https://doi.org/10.48550/arxiv.1410.4183" @default.
- W4290565437 hasPublicationYear "2014" @default.
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