Accession Number : AD0692488

Title :   EXPERIMENTAL STUDY OF ROTOR DOWNWASH IN GROUND EFFECT IN THE PRESENCE OF A STEP.

Descriptive Note : Technical rept.,

Corporate Author : WEST VIRGINIA UNIV MORGANTOWN DEPT OF AEROSPACE ENGINEERING

Personal Author(s) : Shaffer,David G. ; Walters,Richard E.

Report Date : APR 1969

Pagination or Media Count : 85

Abstract : The purpose of the experimental study is to investigate various flow parameters in the plane of symmetry of the flow field produced by a 14 inch diameter, four bladed rotor centered at one rotor radius above a vertical step. The parameters under investigation are the pseudo two dimensional streamline pattern, the resultant flow angles, and the resultant velocities. The forces acting on the rotor are also under investigation. (Author)

Descriptors :   (*HELICOPTER ROTORS, *DOWNWASH), GROUND EFFECT, HOVERING, FLOW FIELDS, TWO DIMENSIONAL FLOW, VELOCITY, FORCE(MECHANICS), EXPERIMENTAL DATA, PROBES

Subject Categories : Aerodynamics
      Helicopters
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE