Time-accurate simulations of synthetic jet-based flow control for an axisymmetric spinning body / Jubaraj Sahu.

Format:

Book

Government document

Author/Creator:

Sahu, Jabaraj

Contributor:

U.S. Army Research Laboratory

Series:

ARL-TR (Aberdeen Proving Ground, Md.) ; 3300.

ARL-TR ; 3300

Language:

English

Subjects (All):

Projectiles, Aerial--Aerodynamics.

Projectiles, Aerial.

Physical Description:

1 online resource (vi, 21 pages) : illustrations (some color), color charts.

Place of Publication:

Aberdeen Proving Ground, MD : Army Research Laboratory, [2004]

Summary:

This report describes a computational study undertaken to consider the aerodynamic effect of synthetic jets as a means of providing the control authority needed to maneuver a projectile at a low subsonic speed. A time-accurate Navier-Stokes computational technique has been used to obtain numerical solutions for the unsteady jet-interaction flow field for a spinning projectile at a subsonic speed, Mach 0.24, and angle of attack, 0 degree. Numerical solutions have been obtained by Reynolds-averaged Navier-Stokes (RANS) and hybrid RANS-large-eddy simulation turbulence models. Unsteady numerical results show the effect of the jet on the flow field and the aerodynamic coefficients, particularly the lift force. These numerical results are being used to assess if synthetic jets can be used to provide the control authority needed for maneuvering munitions to hit the targets with precision.

Notes:

Title from PDF title screen (viewed on Aug. 10, 2010).

"September 2004."

The original document contains color images.

Includes bibliographical references (pages 19-20).

OCLC:

74272064

Access Restriction:

Approved for public release, not available in microfiche.