Micro-bubble resistance reduction on a model SES catamaran
✍ Scribed by Robert Latorre; Aaron Miller; Richard Philips
- Book ID
- 104159092
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 209 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0029-8018
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✦ Synopsis
The concept of micro-bubble ejection is emerging as an attractive method for viscous drag reduction for high speed craft. Most of the drag reduction literature presents results for microbubble ejection above/below horizontal surfaces. Nevertheless, modern high-speed hull forms are slender with vertical surfaces. This paper presents results of model tests with micro-bubble ejection to the vertical sides of a high speed model with a non-wetting coating. The coating yielded drag reduction of 4-6% and micro-bubbles with coating reduced overall drag by 4-11%. The local coefficient of friction with micro-bubbles is analyzed and found comparable to vertical flat plate results of Madavan et al.