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Validation of averaged equations for thermal vibrational convection in near-critical fluids

Vorobev, Anatoliy and Lyubimov, Dimitry and Lyubimova, Tanya and Mojtabi, Abdelkader and Zappoli, Bernard Validation of averaged equations for thermal vibrational convection in near-critical fluids. (2004) Comptes Rendus Mécanique, 332 (10). 803-809. ISSN 1631-0721

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Official URL: https://doi.org/10.1016/j.crme.2004.05.003

Abstract

Within an averaging approach, the governing equations and effective boundary conditions describing both the average and pulsation motion of a near-critical fluid subjected to high-frequency vibrations are obtained. Vibrations induce the non-homogeneities in average temperature. Owing to these non-homogeneities, the average flows can be generated even in isothermal cavity under weightlessness. These flows are examined for 1D and 2D configurations. The direct numerical simulations fulfilled earlier confirm the averaged model, we obtain the same flow structures by essentially smaller requirements for computational time.

Item Type:Article
HAL Id:hal-01946140
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Perm state university (RUSSIA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Russian academy of sciences (RUSSIA)
Laboratory name:
Funders:
U.S. Civilian Research & Development Foundation
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Deposited By: Isabelle Perez
Deposited On:20 Nov 2018 16:17

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