A computationally efficient reduced order model to generate multi-parameter fluid-thermal databases

Bache, E. and Alonso Fernández, Diego and Velázquez López, Ángel Gerardo and Vega de Prada, José Manuel (2012). A computationally efficient reduced order model to generate multi-parameter fluid-thermal databases. "International journal of thermal sciences", v. 52 ; pp. 145-153. ISSN 1290-0729. https://doi.org/10.1016/j.ijthermalsci.2011.08.022.

Description

Title: A computationally efficient reduced order model to generate multi-parameter fluid-thermal databases
Author/s:
  • Bache, E.
  • Alonso Fernández, Diego
  • Velázquez López, Ángel Gerardo
  • Vega de Prada, José Manuel
Item Type: Article
Título de Revista/Publicación: International journal of thermal sciences
Date: February 2012
ISSN: 1290-0729
Volume: 52
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Fundamentos Matemáticos de la Tecnología Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A reduced order model (ROM) is proposed to generate multi-parameter databases of some fluid-thermal problems, using a combination of proper orthogonal decomposition, a gradient-like method, and a continuation method. The resulting ROM greatly reduces the CPU time required by slower methods based on genetic algorithm formulations. As a byproduct, the number of required snapshots is also reduced, which yields an additional improvement of the computational efficiency. The work presented in this article aims to facilitate the use of ROMs in industrial environments, in which time is a very important asset. The methodology is illustrated with the non-isothermal flow past a backward-facing step in the laminar regime, which is a representative problem, related to the engineering design of micro-heat sinks.

More information

Item ID: 9447
DC Identifier: http://oa.upm.es/9447/
OAI Identifier: oai:oa.upm.es:9447
DOI: 10.1016/j.ijthermalsci.2011.08.022
Official URL: http://www.sciencedirect.com/science/article/pii/S1290072911002602
Deposited by: Memoria Investigacion
Deposited on: 12 Mar 2013 11:23
Last Modified: 20 Apr 2016 17:51
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