DC FLOW INVESTIGATIONS IN THERMOACOUSTIC PRIME MOVER

被引：0
|
作者：
Paridaens, Richard [1 ]
Kouidri, Smaine [1 ]
Jerbi, Fathi Jebali [1 ]
机构：
[1] LIMSI CNRS, F-91403 Orsay, France
来源：
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2011, VOL 4, PTS A AND B | 2012年
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D O I：
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中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In thermoacoustic device, the nonlinear phenomena are the source of secondary flows superimposed on the oscillating flow. To date, the acoustic streaming have been only characterized for progressive and standing waves in current systems. A method to characterize theoretically the secondary flows in thermoacoustic systems with more complex geometries is developed in this paper. This method is applied in the case of an annular thermoacoustic prime mover. The streaming fields are then provided. As the determination of the streaming fields requires the knowledge of the first order acoustic parameters, a linear model is used. The theoretical results of the acoustic pressure are compared to the experimental data. A relative error less than 10 % is obtained, allowing the validation of the linear model.
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页码：439 / 444
页数：6
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