Towards a robust parallel solver for large-scale industrial flow simulations
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hdl:2117/376517
Tipus de documentProjecte Final de Màster Oficial
Data2022-07-15
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Abstract
In this work a CFD analysis is done on incompressible viscous flows using Finite Volume
schemes implemented in the open-source software OpenFOAM. The objective of this
study is twofold: to gain experience with the software and to define a set of best
practices when running large-scale cases in OpenFOAM using parallel architectures.
The first objective is obtained by testing three academic benchmarks, namely the lid-
driven cavity, the flow over a backward facing step, and flow past a circular cylinder.
The validation of these results is made by contrasting them to the data available in
the literature. The second objective was fulfilled by studying two large-scale industrial
problems, laminar flow inside an S-bend and turbulent external flow around a car.
For the latter, the DriveAer geometry has been used. The analysis of these high-
performance computing studies has been defined in terms of the relative efficiency and
speed up for the two problems. The studied cases have been scaled up until 84 CPUs for
the S-bend, and until 224 CPUs for the vehicle geometry. Furthermore, the performance
of three partitioners, namely the simple, hierarchical, and scotch decomposers have been
evaluated.
TitulacióMÀSTER UNIVERSITARI EN MÈTODES NUMÈRICS EN ENGINYERIA (Pla 2012)
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Master_Thesis_MatyasRosta.pdf | 13,16Mb | Visualitza/Obre |