Accession Number : ADP000357

Title :   A High-Reynolds-Number Seal Test Facility: Facility Description and Preliminary Test Data,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Childs,Dara W. ; Nelson,Clayton ; Noyes,Ted ; Dressman,John B.

Report Date : 1982

Pagination or Media Count : 15

Abstract : A facility has been developed for testing the leakage and rotordynamic characteristics of interstage-seal configurations for the HPFTP (High Pressure Fuel Turbopump) of the SSME (Space Shuttle Main Engine). Axial Reynolds numbers on the order of 400,000 are realized in the test facility by using a Dupont freon fluid called Halon (CBrF3). The kinematic viscosity of Halon is of the same order as the liquid hydrogen used in the HPFTP. Initial testing has focused on the current flight configurations (a three-segment, stepped unit) and a convergent-taper candidate.

Descriptors :   *Turbomachinery, *Turbopumps, *Fuel pumps, *Sealed systems, *Test facilities, *Workshops, High pressure, Halogenated hydrocarbons, Reynolds number, Rotors, Dynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE