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CORE COURSES
CORE COURSES

... significance of Biot and Fourier numbers, Heissler charts; Low Bi case; penetration depth, Essential nature of convection: transpiration cooling; writing energy equation without dissipation and pressure terms; one example (heat transfer to fluid flowing in a tube); non-dimen-sionalization, Nusselt n ...
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< 1 ... 134 135 136 137 138 139 140 141 142 ... 194 >

Lumped element model



The lumped element model (also called lumped parameter model, or lumped component model) simplifies the description of the behaviour of spatially distributed physical systems into a topology consisting of discrete entities that approximate the behaviour of the distributed system under certain assumptions. It is useful in electrical systems (including electronics), mechanical multibody systems, heat transfer, acoustics, etc.Mathematically speaking, the simplification reduces the state space of the system to a finite dimension, and the partial differential equations (PDEs) of the continuous (infinite-dimensional) time and space model of the physical system into ordinary differential equations (ODEs) with a finite number of parameters.
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