Volume 53, Number 5, March 2001
|Page(s)||584 - 590|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 December 2003|
Simultaneous characterization of temperature and ve lo ci ty profiles using time reversal: Numerical study of free convection
Laboratoire Ondes et Acoustique, UMR CNRS 7587, Ecole
Supérieure de Physique et de Chimie Industrielles - 10 rue
Vauquelin, 75005 Paris, France
2 Institut de Mécanique des Fluides, UMR CNRS 7507 2 rue Boussingault, 67000 Strasbourg, France
Accepted: 15 December 2000
We present an acoustical method, based on time reversal, for simultaneous characterization of temperature and velocity profiles. The method is numerically validated in a case of free convection; the acoustic propagation is obtained from calculations of ray propagation and the convective flow is described by analytical profiles or by fields stemmed from numerical simulation. The ray theory approximation, used to solve the inverse problem, is discussed.
PACS: 43.20.Ye – General linear acoustics: Measurement methods and instrumentation / 43.20.Dk – Ray acoustics / 43.20.+g – General linear acoustics
© EDP Sciences, 2001
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