Our heavyweight helicopter equal in the world does not have
In Rostov started production of the most load-lifting rotary-wing car The Russian holding «Helicopt[...]
THERMAL INVERSE DESIGN AND OPTIMIZATION
G. S. Dulikravich
The Pennsylvania Stale University, University Park, PA. USA
13.1 Introduction
During the design of high speed flight vehicles the designer should take into account the aerodynamic heating due to surface friction and the high temperature air behind the strong shock, waves The allowable exterior surface temperatures arc limited by the material properties of the skin materia) of the flight vehicle. In addition, the amount of heat that penetrates the skin structure should be minimized since it will have to be absorbed by the fuel and not allowed to enter the passenger cabin. A typical remedy is to cool the structure by pumping a cooling fluid (typically the fuel) through numerous passages manufactured inside the outer structure of the flight vehicle. A design optimization method should therefore provide the designer with a tool to guide the development of innovative designs of internally cooled, thermally coated or non-coated structures that will cost less to manufacture, have a longer life span, be easier to repair, and sustain higher surface temperatures
