Fundamental Investigation of Noise Generation by Turbulent Jets Lewis Flight Propulsion Laboratory, NACA

Format:

Conference/Event

Author/Creator:

Sanders, N. D., author.

Conference Name:

SAE National Aeronautic Meeting

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1957

Summary:

EQUATIONS relating to noise outside a turbulent jet to the turbulent velocities inside the jet have been derived making use of Lighthill's suggestion that the actual flow field can be simulated with a stationary field of quadrupoles.Hot-wire anemometer techniques were applied to a 3V-inches air jet to measure the turbulent structure of the mixing region. These measurements and the previously derived equations were used to estimate some of the characteristics of the sound field.The estimated characteristics were found to be in good agreement with the experimentally measured sound field of a full-scale turbojet engine

Notes:

Vendor supplied data

Publisher Number:

570025

Access Restriction:

Restricted for use by site license