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On the Acoustical Dynamics of Bubble Clouds

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Title On the Acoustical Dynamics of Bubble Clouds
 
Creator d'Agostino, L.
Brennen, C. E.
 
Subject Caltech Library Services
 
Description Recently, Morch [1,2,3,4] Chahine [5,6] and others have focused attention on the dynamics of a cloud or cluster of cavitating bubbles and have expanded on the work of van Wijngaarden [7,8] and others. Unfortunately, there appear to be a number of inconsistencies in this recent work which will require further study before a coherent body of knowledge on the dynamics of clouds of bubbles is established. For example, Morch and his co-workers [1,2,3] have visualized the collapse of a cloud of cavitating bubbles as involving the inward propagation of a shock wave; it is assumed that the bubbles collapse virtually completely when they encounter the shock. This implies the virtual absense of non-condensable gas in the bubbles and the predominance of vapor. Yet in these circumstances the mixture in the the cloud will not have any real sonic speed. As implied by a negative L.H.S. of equation (9), the fluid motion equations for the mixture would be elliptic not hyperbolic and hence shock wave solutions are inappropriate.
 
Publisher American Society of Mechanical Engineers
 
Contributor Hoyt, J. W.
 
Date 1983-06
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Identifier http://authors.library.caltech.edu/206/1/DAG058.pdf
d'Agostino, L. and Brennen, C. E. (1983) On the Acoustical Dynamics of Bubble Clouds. In: Cavitation and Multiphase Flow Forum--1983 : presented at the Applied Mechanics, Bioengineering, and Fluids Engineering Conference, Houston, Texas, June 20-22, 1983. Fluids Engineering Division. Vol.FED-2. No.2. American Society of Mechanical Engineers , New York, pp. 72-75. http://resolver.caltech.edu/CaltechAUTHORS:DAGasmecmff83 <http://resolver.caltech.edu/CaltechAUTHORS:DAGasmecmff83>
 
Relation http://resolver.caltech.edu/CaltechAUTHORS:DAGasmecmff83
http://authors.library.caltech.edu/206/