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- W1552880930 abstract "This paper is focussed on the detail analysis of some specific parts of fin-and-tube heat exchangers using CFD methodologies. The multidimensional simulation developed is based on fully implicit finite volume techniques. The coupled time averaged governing equations (continuity, momentum, energy, and turbulence quantities) are solved in a segregated manner using pressure-based algorithms. Some topics about the numerical procedure are presented, such as the numerical implementation of inflow and outflow pressure boundary conditions or the strategy of the parallel implementation of the code based on the (approximately) spatial parabolic flow structure. An important issue addressed in this work has been the analysis of the quality of the numerical solutions. A post-processing procedure based on both the generalised Richardson extrapolation for h-refinement studies and on the grid convergence index (GCI) has been used. In this way, criteria about the sensitivity of the simulation to the computational model parameters that account for the discretization errors are presented. Two different flows have been studied: the airflow through parallel corrugated plates and the single-phase flow inside headers and tubes. Different aspects related to the quality of the numerical solution (grid properties, numerical schemes) are highlighted. After that, the different parameters (geometry and boundary conditions) which have an influence on the thermal and fluid dynamic behaviour of these flows are analysed." @default.
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- W1552880930 date "2009-05-26" @default.
- W1552880930 modified "2023-10-14" @default.
- W1552880930 title "CFD Studies on Fin and Tube Heat Exchangers: Critical Analysis of the Numerical Solutions Reliability" @default.
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- W1552880930 doi "https://doi.org/10.4203/ccp.76.30" @default.
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