Effects of Aerodynamic Lags on Aircraft Responses,

Abstract

Results of a theoretical study on the effects of unsteady aerodynamics on symmetric aircraft responses due to elevator and vertical turbulence inputs, are presented. Several linear models were developed to describe unsteady lift and downwash and delays due to horizontal tail length. Results for three example aircraft types show that calculated normal acceleration levels due to turbulence are very 'little affected by including unsteady wing lift and downwash. However, there appears to be a noticable influence on plunging acceleration and pitch rate response to elevator or vertical turbulence inputs.

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1985
Accession Number
ADP005036

Entities

People

  • J. C. Van Der Vaart

Organizations

  • Delft University of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamics
  • Aircrafts
  • Downwash
  • Dynamics
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Horizontal Stabilizers
  • Hydrodynamics
  • Mechanics
  • Turbulence
  • Unsteady Aerodynamics

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Computational Fluid Dynamics (CFD)