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Measurements of Air Entrainment by Bow Waves

Waniewski, T. A. and Brennen, C. E. and Raichlen, F. (2001) Measurements of Air Entrainment by Bow Waves. Journal of Fluids Engineering, 123 (1). pp. 57-63. ISSN 0098-2202. doi:10.1115/1.1340622.

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This paper describes measurements of the air entrained in experiments simulating the breaking bow wave of a ship for Froude numbers between two and three. The experiments and the characteristics of the wave itself are detailed in T. Waniewski, 1999, "Air Entrainment by Bow Waves; PhD. theses, Calif. Inst. of Tech." The primary mechanism for air entrainment is the impact of the plunging wave jet, and it was observed that the air bubbles were entrained in spatially periodic bubble clouds. The void fraction and bubble size distributions were measured in the entrainment zone. There were indications that the surface disturbances described in Waniewski divide the plunging liquid jet sheet into a series of plunging jets, each of which produces a bubble cloud.

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Additional Information:Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division June 4, 1999; revised manuscript received October 17, 2000. The authors wish to acknowledge the assistance of Mr. Hai Vu in developing the IVFM and the support of the Office of Naval Research under grant number N00014-94-1-1210, technical monitor Dr. Edwin Rood.
Issue or Number:1
Record Number:CaltechAUTHORS:WANjfe01
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:163
Deposited By: Christopher Brennen
Deposited On:09 Nov 2004
Last Modified:08 Nov 2021 19:00

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