Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Fundamentals of CavitationBubbles and Cavities on Two-Dimensional Foils

Fundamentals of Cavitation: Bubbles and Cavities on Two-Dimensional Foils 8. BUBBLES AND CAVITIES ON TWO-DIMENSIONAL FOILS This chapter is mainly concerned with developed cavitation on two-dimensional hydrofoils as it occurs on blades of rotating machinery or lifting hydrofoils. The mechanisms which govern inception and development of attached cavitation and traveling bubble cavitation are presented in sections 8.1 and 8.2 respectively. It is shown that attached cavities are strongly connected to the boundary layer, while bubble cavitation chiefly depends on the pressure distribution and the liquid nuclei content. The possible competition and interaction between both modes of cavitation is examined in section 8.3 while roughness effects are examined in section 8.4. From an experimental viewpoint, the control of cavitation patterns requires specific control of the water quality by means of equipment devoted to de- aeration, nuclei seeding and nuclei measurement. 8.1. ATTACHED CAVITATION In chapters 6 and 7, the main features of attached cavities, partial cavities as well as supercavities, were reviewed. Two critical regions were pointed out: cavity detachment and cavity closure. The latter was treated in detail in chapter 7 for partial cavitation. Here the focus is on cavity detachment, whose location is, a priori, unknown in the case of a wall of continuous slope. 8.1.1. CAVITATION http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Fundamentals of CavitationBubbles and Cavities on Two-Dimensional Foils

Part of the Fluid Mechanics and Its Applications Book Series (volume 76)
Fundamentals of Cavitation — Jan 1, 2005
Download PDF
23 pages

Loading next page...
 
/lp/springer-journals/fundamentals-of-cavitation-bubbles-and-cavities-on-two-dimensional-CXZyy097ts
Publisher
Springer Netherlands
Copyright
© Springer Science + Business Media, Inc. 2005
ISBN
978-1-4020-2232-6
Pages
169 –192
DOI
10.1007/1-4020-2233-6_8
Publisher site
See Chapter on Publisher Site

Abstract

8. BUBBLES AND CAVITIES ON TWO-DIMENSIONAL FOILS This chapter is mainly concerned with developed cavitation on two-dimensional hydrofoils as it occurs on blades of rotating machinery or lifting hydrofoils. The mechanisms which govern inception and development of attached cavitation and traveling bubble cavitation are presented in sections 8.1 and 8.2 respectively. It is shown that attached cavities are strongly connected to the boundary layer, while bubble cavitation chiefly depends on the pressure distribution and the liquid nuclei content. The possible competition and interaction between both modes of cavitation is examined in section 8.3 while roughness effects are examined in section 8.4. From an experimental viewpoint, the control of cavitation patterns requires specific control of the water quality by means of equipment devoted to de- aeration, nuclei seeding and nuclei measurement. 8.1. ATTACHED CAVITATION In chapters 6 and 7, the main features of attached cavities, partial cavities as well as supercavities, were reviewed. Two critical regions were pointed out: cavity detachment and cavity closure. The latter was treated in detail in chapter 7 for partial cavitation. Here the focus is on cavity detachment, whose location is, a priori, unknown in the case of a wall of continuous slope. 8.1.1. CAVITATION

Published: Jan 1, 2005

Keywords: Cavitation Number; Turbulent Spot; Laminar Separation Bubble; Cavitation Inception; Deaerated Water

There are no references for this article.