Abstrakt
Steady state two-dimensional numerical simulation of laminar heat
transfer and fluid flow in a scraped surface heat exchanger (SSHE) is
presented. Typical SSHE consists of a stator, rotating shaft and scraping
blades. Due to symmetry only a quarter of the heat exchanger is modelled.
Governing equations for transport of mass, momentum and energy are
discretised and solved with the use of commercial CFD code. The results
are presented in a nondimensional form for velocity, pressure and
temperature distributions. Local and averaged Nusselt number along the
stator wall are calculated and depicted in graphs. It was found that the
thirty fold increase of the cReynolds number, leads to heat transfer
enhancement rate by three times.
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