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

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.

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADP000357

Entities

People

  • Clayton Nelson
  • Dara W. Childs
  • John B. Dressman
  • Ted Noyes

Organizations

  • Texas A&M University

Tags

DTIC Thesaurus Topics

  • Buildings And Structures
  • High Pressure
  • Hydrogen
  • Instability
  • Liquid Hydrogen
  • Reynolds Number
  • Space Shuttles
  • Test Facilities
  • Turbomachinery
  • Turbopumps
  • Viscosity
  • Workshops

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fire Suppression Systems Design.
  • Robotics and Automation.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster