Recent Developments of Image Based Measurement Methods for Application to Transonic Flows in Industrial Wind Tunnels  

基于图像的测量方法在工业风洞跨声速流测量中的最新进展(英文)

作　　者：J.KOMPENHANS J.AGOCS Y.EGAMI R.ENGLER U.FEY H.FRAHNERT K.de GROOT U.HENNE T.KIRMSE C.KLEIN F.KLINGE R.KONRATH L.KOOP H.MATTNER D.OTTER D.PALLEK W.SACHS A.SCHRDER B.STASICKI 

机构地区：[1]German Aerospace Center (DLR),Institute of Aerodynamics and Flow Technology 37073 Gttingen,Bunsenstrasse 10 , Germany

出　　处：《Chinese Journal of Aeronautics》2006年第2期114-125,共12页中国航空学报（英文版）

摘　　要：The experimental investigation of unsteady complex flow fields in wind tunnels requires advanced measurement techniques. The most important of such image based measurement techniques are those for the measurement of planar flow velocity fields, planar pressure distribution, model location and deformation, model temperature and quantitative high speed flow visualization. The applications as carried out by DLR range from low speed flows to transonic flows, from high lift configurations to propellers and rotors, from wake vortex investigations in catapult facilities and water towing tanks to investigations of vortex break down phenomena on delta wings. The capability to use image based measurement techniques in transonic flows requires dedicated technical developments and experienced scientists due to the special environment of a transonic wind tunnel. In this paper an overview of the state-of-the art of the application of image based measurement techniques in transonic flows as performed by DLR＇s Institute of Aerodynamics and Flow Technology will be given.The experimental investigation of unsteady complex flow fields in wind tunnels requires advanced measurement techniques. The most important of such image based measurement techniques are those for the measurement of planar flow velocity fields, planar pressure distribution, model location and deformation, model temperature and quantitative high speed flow visualization. The applications as carried out by DLR range from low speed flows to transonic flows, from high lift configurations to propellers and rotors, from wake vortex investigations in catapult facilities and water towing tanks to investigations of vortex break down phenomena on delta wings. The capability to use image based measurement techniques in transonic flows requires dedicated technical developments and experienced scientists due to the special environment of a transonic wind tunnel. In this paper an overview of the state-of-the art of the application of image based measurement techniques in transonic flows as performed by DLR＇s Institute of Aerodynamics and Flow Technology will be given.

关 键 词：industrial wind tunnel transonic flow image based measurement techniques pressure sensitive paint particle image velocimetry model deformation measurement techniques THERMOGRAPHY non-standard video techniques 

分 类 号：V411[航空宇航科学与技术—航空宇航推进理论与工程]