Mathematical Modeling of Flow and Heat Exchange in Pipes with Surface Turbulators with a Square Cross-Section (S/H = 1) and Edges (S/H << 1) Based on the Low-Reynolds Mentor Model

Authors: Lobanov IE*

DOI: 10.23880/psbj-16000158

Volume 4, Issue 2

Abstract

Mathematical modeling of heat transfer and hydraulic resistance in pipes with turbulators is carried out on the basis of a proven model. The flow and heat transfer parameters were calculated by calculation based on multiblock computational technologies based on the solution of the factorized finite-volume method (FKOM) of the Reynolds equations (closed using the Menter shear stress transfer model) and the energy equation (on multi-scale intersecting structured grids) for turbulators with transverse section in the form of a square (s/h = 1) and in the form of an edge (s/h << 1). The results of calculations showed the advantages and disadvantages of turbulators with a cross-section in the form of a square and in the form of an edge in relation to each other for various geometric and operating factors.

Keywords: Modeling; Heat transfer; Hydraulic resistance; Cross-section; Turbulator; Square; Rib

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