The Influence of Geometry Parameters Upon Lag Error in Airborne Pressure Measuring Systems

Abstract

The general nature of the lag problem in airborne pressure measuring systems is discussed. It is concluded that variations in system geometry offer the most promise in improving response. The remainder of the report is given to a theoretical examination of various geometry parameters and to an evaluation (utilizing both theoretical and experimental methods) of their effect upon lag error. Techniques for computing lag error in any system are presented. Theory and experiment are shown to be in agreement for the case of laminar flow. Evidence of transitional flow is also presented. Based upon the results of the study, specific dimensions for tubing lines and pitot-static tube chambers are recommended for use in the static pressure systems of high performance aircraft.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1957
Accession Number
ADA275671

Entities

People

  • J. P. Lamb Jr.

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Aircrafts
  • Altitude
  • Computational Fluid Dynamics
  • Flight Speeds
  • Fluid Dynamics
  • Laminar Flow
  • Mach Number
  • Measurement
  • Measuring Instruments
  • Navier Stokes Equations
  • Poiseuille Flow
  • Pressure Measurement
  • Pressure Transducers
  • Supersonic Aircraft
  • Test Equipment

Fields of Study

  • Physics

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Fluid Dynamics.
  • Systems Analysis and Design