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oai:recercat.cat:2117/3320932026-02-07T01:15:22Zcom_2072_1033col_2072_452949

Study on the rudder characteristics of ultimate rudder by numerical calculation Tendou, Yasuhiro Okada, Yoshihisa Kajihama, Taro Kajino, Toshie Katayama, Kenta Okazaki, Masafumi Fukuda, Kenichi Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits Finite element method Marine engineering Ultimate Rudder, Rudder with bulb, Rudder characteristics, CFD Enginyeria naval The authors invented Ultimate Rudder3) as the rudder with bulb. The authors calculated the rudder characteristics of the normal rudder and Ultimate Rudder by CFD at several steering angles and compared these values. The result showed that regardless of the presence or absence of the bulb, signs of separation appear on the control surface with a steering angle of 20 deg. to 30 deg. and regarding the steering torque coefficient, it was found that the steering torque coefficient of Ultimate Rudder is larger than the normal Rudder when the steering angle is less than 20 deg. and also the steering torque coefficient can be decreased by changing the shape of the rudder bulb. 2017 Conference report Tendou, Y. [et al.]. Study on the rudder characteristics of ultimate rudder by numerical calculation. A: MARINE VII. "MARINE VII : proceedings of the VII International Conference on Computational Methods in Marine Engineering". CIMNE, 2017, p. 932-937. ISBN 978-84-946909-8-3. 978-84-946909-8-3 https://hdl.handle.net/2117/332093 eng Open Access 6 p. application/pdf CIMNE