Goertler Vortices in Hypersonic Flow Detected by IR Thermography

Abstract

Abstrnef Heat transfer measurements performed by means of an Infrared Scanning Radiometer in a blowdown hypersonic wind tunnel are discussed In particular, the formation of Goertler-type vortices in the reattaching flow region over the flap following a flat plate is investigated, as well as its influence on the wall hezt transfer distribution Tests are carried out within the European Community Hermes space program to develop the first european space shuttle.