Accession Number:
ADA001337
Title:
Time-Dependent Thrust Generated by a Propeller Operating in a Turbulent Inflow.
Descriptive Note:
Technical memo.,
Corporate Author:
PENNSYLVANIA STATE UNIV STATE COLLEGE APPLIED RESEARCH LAB
Personal Author(s):
Report Date:
1974-04-26
Pagination or Media Count:
24.0
Abstract:
The broadband radiated sound of a propulsor can be related to the time-dependent thrust generated by the propulsor due to operation in a randomly varying turbulent velocity field. In order to understand better the radiated sound phenomenon, an experimental and theoretical investigation of the time-dependent thrust response of a propeller due to operation in turbulent inflows having various characteristic parameters was conducted. The experimental investigations employ an unsteady thrust balance mounted in the drive shaft of a 5-bladed free-stream propeller. Measurements of the time-dependent thrust generated by the propeller were made for turbulent inflows having a range of characteristics length scales and a range of turbulent intensity.
Subject Categories:
- Aerodynamics
- Fluid Mechanics