An Application of Coanda Effect to a Flapped Rudder

  • Ahn, Hae-Seong (Department of Namal Architecture and Ocean Eng., Seoul National University) ;
  • Kim, Hyo-Chul (Department of Namal Architecture and Ocean Eng., Seoul National University) ;
  • Park, Je-Jun (Department of Naval Architecture and Ocean Eng., Inha University) ;
  • Lee, Seung-Hee (Department of Naval Architecture and Ocean Eng., Inha University)
  • Published : 1999.12.01

Abstract

A Coanda effect which is known to provide a high lift in a high drag condition has been applied to a flapped rudder of a ship. Model experiments and numerical simulations on the Coanda effect of the flapped rudder have been carried out at various situations and the results are compared to each other. It I found that a remarkable increase in the rudder force occur due to the Coanda effect and that the results ould be utilized for the design of a high-lift rudder system.

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