一种新型的仿生双尾推进器模型实验_于凯.pdfVIP

22 1 Vol. 22 , No. 1 2008 03 Journal of Experiments in Fluid Mechanics Mar. , 200 8 : ( 2008) 于 凯, 黄 胜, 王 超 ( , 150001) : , , , , : , , FLUENT , , , : ; ; : O811. 6 : A The model experiment of a newtype double tailfin robotic fish propulsion YU Ka , HUANG Sheng, WANG Chao ( College of Sh pbu ld ng Eng neer ng, Harb n Eng neer ng Un vers ty, Harb n 150001, Ch na) Abstract: To avo d the sw ng of forebody of robot c f sh w th s ngle ta lf n, a k nd of robot c f sh w th double ta lf n was des gned and was used n SWATH. The exper mental platform of double ta lf n propruls on was produced and the exper mental research of the double ta lf n propuls on was made n a pond. As a result , the double ta lf n propulsor as a newtype propulsor not only can solve the shakable problem of the s ngle ta l f n robot c f sh when t s sw mm ng, but also has excellent propuls ve eff c ency and maneuverab l ty. The CFD software FLUENT was used to calculate the unsteady flow character st c of the sw ng ng ta lf n . Accord ng to the d fferent flow character st c between the s ngle ta lf n and the double ta lf n , the author analyzed the mutual nterferent al problem dur ng the sw ng process of the double ta lf n. The numer cal s mulat on of the ta lf n f eld shows that t s benef c al that the two ta l- f ns of double ta lf n robot c f sh propuls on nter fere w th each other wh le sw ng ng n the low frequency. Key words: robot c f sh ; double ta lf n thrust; numer cal s mulat on 0 , ( ) , , , , , , , ,