Accession Number:

AD0904474

Title:

Analysis of the Hover Performance of a High Speed Circulation Control Rotor

Personal Author(s):

Corporate Author:

DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD AVIATION AND SURFACE EFFECTS DEPT

Report Date:

1971-08-01

Abstract:

A method for calculating the detailed hover performance of any arbitrary circulation control rotor is presented. The method includes such higher order effects as non-uniform inflow, internal ducting losses and experimental airfoil data. Calculations were performed on an untwisted constant chord blade with varying section thickness and camber. Hover Figures of Merit exceeding 0.80 are calculated for this rotor at thrust coefficient to solidity ratios of 0.20. The optimum pitch angle is determined for each thrust coefficient. The effects of slot height and tip Mach number are also analyzed. A comparison is made with a conventional rotor system of the same solidity.

Descriptive Note:

Technical note

Pages:

0059

Subject Categories:

Communities Of Interest:

Modernization Areas:

Distribution Statement:

Approved for public release; distribution is unlimited.

File Size:

3.19MB