engleski

Modelling of heat transfer in a laminar flow through a helical pipe

We study the flow of heat-conducting incompressible Newtonian fluid through a helical pipe with cooling. Pipe’ s thickness and the helix step are considered as the small parameter ε . Using asymptotic analysis with respect to ε , we derive the simplified mathematical model describing the heat transfer through the pipe. The error estimate for the approximation is proved.

heat transfer ; helical pipe ; asymptotic expansion

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