STUDY OF ROTOR CONFIGURATIONS FOR MINIMUM POWER AND ROTOR-WAKE PRESSURE DISTRIBUTIONS.

Abstract

Two independent tasks are included as follows: Task I - Develop a method for analytically determining rotor planform and twist distribution to minimize the power required by a hovering or slowly advancing rotor. Task II - Predict the time-varying pressure distribution on a smooth surface due to a hovering rotor. Under Task I, the mathematical developments required were completed and are discussed. The Task II effort was made in support of research being carried out concerning the transmission of sound energy across a water interface. Digital computer calculations of the unsteady static pressures on a smooth ground plane directly beneath a hovering rotor were performed for two separate rotor configurations. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1967
Accession Number
AD0664689

Entities

People

  • C. Tung
  • W. G. Brady

Organizations

  • Calspan

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Computers
  • Computing Devices
  • Digital Computers
  • Hovering
  • Planform
  • Pressure Distribution
  • Static Pressure

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerospace Engineering
  • Computational Modeling and Simulation