REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

AERODYNAMICS OF THE HIGH SPEED TRAIN BIO-INSPIRED BY A KINGFISHER

suzana liniĆ

Institute Gosa, Belgrade, sumonja@yahoo.com

boŠko raŠuo

University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia, brasuo@mas.bg.ac.rs

mirko koziĆ

Military Technical Institute, Belgrade, Serbia, mkozic@open.telekom.rs

Vojkan LuČanin

University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia, vlucanin@mas.bg.ac.rs

Aleksandar bengin

University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia, abengin@mas.bg.ac.rs

Abstract: With the intention to contribute to aerodynamic optimization of transport vehicles, the high speed train was biomimic with a kingfisher. Presented bionic concept design was defined after a series of hydrodynamic and numeric experiments of bionic model of the kingfisher. The aerodynamic characteristics of the high speed train were observed in three configurations, under various railing conditions, as follows: in a free flight (up to critical local conditions), in a presence of ground and passing through the tunnel. Obtained results presents the main aerodynamic characteristics of the bionic high-speed train, and in further, analyzed from the view of a design source. Adequate results were compared with concept designs bio-inspired with other animals showing the best performances after biomimic with the kingfisher up to velocities of 400km/h.

Keywords: aerodynamics, bionic, CFD, optimization.