Accession Number : ADA330104

Title :   Joint US/Russia TU-144 Engine Ground Tests

Descriptive Note : Technical memo.

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER

Personal Author(s) : Acosta, Waldo A. ; Balser, Jeffrey S. ; McCartney, Timothy P. ; Richter, Charles A. ; Woike, Mark R.

PDF Url : ADA330104

Report Date : JUN 1997

Pagination or Media Count : 29

Abstract : Two engine research experiments were recently completed in Moscow, Russia using an engine from the Tu-144 supersonic transport airplane. This was a joint project between the United States and Russia. Personnel from the NASA Lewis Research Center, General Electric Aircraft Engines, Pratt & Whitney, the Tupolev Design Bureau, and IBP Aircraft LTD worked together as a team to overcome the many technical and cultural challenges. The objective was to obtain large scale inlet data that could be used in the development of a supersonic inlet system for a future High Speed Civil Transport (HSCT). The first experiment studied the impact of typical inlet structures that have trailing edges in close proximity to the inlet/engine interface plane on the flow characteristics at that plane. The inlet structure simulated the subsonic diffuser of a supersonic inlet using a bifurcated splitter design. The centerbody maximum diameter was designed to permit choking and slightly supercritical operation. The second experiment measured the reflective characteristics of the engine face to incoming perturbations of pressure amplitude. The basic test rig from the first experiment was used with a longer spacer equipped with fast actuated doors. All the objectives set forth at the beginning of the project were met.

Descriptors :   *AIRCRAFT ENGINES, *SUPERSONIC INLETS, *SUPERSONIC TRANSPORT AIRCRAFT, TEST AND EVALUATION, UNITED STATES, AIR FLOW, COMPUTATIONAL FLUID DYNAMICS, RUSSIA, CIVIL AVIATION, SUPERCRITICAL FLOW, SUPERSONIC FLOW, PRESSURE DISTRIBUTION, SUBSONIC DIFFUSERS.

Subject Categories : Transport Aircraft
      Fluid Mechanics
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE