Dynamic Characteristics of Aerial Refueling Systems.

Abstract

Two aircraft refueling system configurations were simulated using HYTRAN, an existing transient flow analysis computer program. Transient pressure response subsequent to downstream valve closure was investigated for the KC-135 and a laboratory test rig and compared to available experimental data and previous research. Parametric studies were performed of system variables: valve closure time, valve area versus time (closure curves), and variation in surge attenuation components (surge boot, accumulators). A typical closure curve for quick disconnects was approximated and verified. The simulation results compared favorably with experimental data and previous work. Transient pressure was found to be sensitive to accumulator or surge boot precharge pressure while changes in accumulator volume had little effect. Variations in accumulator entry line diameter or length affected transient pressure and settling time. Increased valve snubbing reduced maximum transient pressures. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA124770

Entities

People

  • Thomas J. Carter Iii

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Computer Programs
  • Computers
  • Engineering
  • Experimental Data
  • Fuel Systems
  • Laboratory Tests
  • Plastic Explosives
  • Poppet Valves
  • Pressure Measurement
  • Refueling
  • Refueling In Flight
  • Simulations
  • Sleeve Valves
  • Steady State
  • Tanker Aircraft

Readers

  • Aerodynamics.
  • Explosive Engineering.
  • Internal Combustion Engine (ICE) Technology.