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Computation of incompressible three-dimensional mixed convection flows in long aspect ratio channels using an efficient finite difference method for vectorial supercomputers

Xavier Nicolas 1, * S. Xin 2 A. Benzaoui 1
* Corresponding author
1 LETEM - Laboratoire d'Etudes des Transferts d'Energie et de Matière
2 LIMSI - Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur
Abstract : Based on Goda's algorithm and second-order central finite differences, a very efficient vectorized code is tailored to solve 3D incompressible Navier-Stokes equations for mixed convection flows in high streamwise aspect ratio channels. The code takes advantage of incremental factorization method of ADI type, spectral decomposition of the 1D Laplace operators and TDMA algorithm. It is validated through experiments of various Poiseuille-Rayleigh-Benard flows with steady longitudinal and unsteady transverse rolls.
Keywords : VECTORIAL COMPUTATIONS HORIZONTAL RECTANGULAR DUCT BOUNDARY-CONDITION PLANE CHANNEL AIR THERMOCONVECTIVE PATTERNS TRANSVERSE ROLLS LONGITUDINAL ROLLS SINUOUS ROLLS SIMULATION
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https://hal-upec-upem.archives-ouvertes.fr/hal-00711383
Contributor : Xavier Nicolas <>
Submitted on : Sunday, June 24, 2012 - 4:20:25 PM
Last modification on : Wednesday, September 16, 2020 - 5:20:09 PM

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CNRS | LIMSI | UNIV-MLV | MSME_TCM | MSME | CV_MSME | UPEC-UPEM | SORBONNE-UNIVERSITE

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Xavier Nicolas, S. Xin, A. Benzaoui. Computation of incompressible three-dimensional mixed convection flows in long aspect ratio channels using an efficient finite difference method for vectorial supercomputers. HT2005: ASME Heat Transfer Summer Conference, ASME, Jul 2005, San Francisco, CA, United States. pp.829-836, ⟨10.1115/HT2005-72112⟩. ⟨hal-00711383⟩

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