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| نشریه دانشکده فنی | ||
| مقاله 9، دوره 19، شماره 0 - شماره پیاپی 1000161، فروردین 1350 اصل مقاله (1.21 M) | ||
| نویسندگان | ||
| زین العابدین نجات؛ محمد رضا هوشنگی* | ||
| عنوان مقاله [English] | ||
| A New Electrical Analog Method to Study Two-Dimensional Heat-Conduction in Solids | ||
| چکیده [English] | ||
| An electrical network model consisting of electrical resistances is used to demonstrate the steady and two-dimensional heat conduction field in solids. The governing equation being Fourier's field equation of conduction in partial deferential form is replaced by a finite-difference equation with the help of this network. The nodal points of the network are connected to a set of sockets on the same board as the resistances. Different geometrical shapes can be formed by connecting these sockets together. A D-C electric current is supplied to the model in order to stimulate an electrical field analogous to the heat conduction field. Experiments on a rectangular fin and a chimney cross-sections arc reported. The advantages of present model over the electrolytic-bath and the conducting paper models are shown. It is possible to build a network model to study the heat conduction in non-isotropic solids. This method also can be easily extended to take care of unsteady heat conduction conditions. | ||
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