SALTATION AND SUSPENSION OF SEDIMENT BY TURBULENT WIND

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$49,949.00
Award Year:
1992
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
18467
Agency Tracking Number:
18467
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Waterjet Technology, Inc. (Currently Waterjet Technology Inc)
21414-68th Avenue South, Kent, WA, 98032
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. Paul A. Hwang
(202) 872-9500
Business Contact:
() -
Research Institution:
n/a
Abstract
PARTICLES IN THE AIR ABSORB AND SCATTER ELECTROMAGNETIC WAVES, CAUSING TRANSMISSION LOSS AND IMAGE OBSCURATION. THE PATTERNS OF SCATTERING AND EXTINCTION ARE FUNCTIONS OF WAVELENGTH AND PARTICLE SIZE. IN ORDER TO CALCULATE THE TRANSMITTANCE AND EXTINCTION COEFFICIENTS OF MULTI-SPECTRAL, FROM VISIBLE TO MILLIMETER WAVELENGTH, TARGET ACQUISITION SYSTEMS, THE SIZE DISTRIBUTION OF PARTICLES ALONG THE TARGET PATH NEEDS TO BE PROVIDED. MOST SEDIMENT TRANSPORT EQUATIONS, HOWEVER, ARE CONCERNED WITH THE TOTAL MASS FLUX OVER THE WHOLE SALTATION LAYER, OR AT MOST GIVE THE VERTICAL CONCENTRATION PROFILES OF SUSPENSION, WITHOUT RESOLUTION OF PARTICLE SIZE. IN PHASE I, WE PROPOSE TO DEVELOP A NUMERICAL PROCEDURE TO OBTAIN THE SIZE DISTRIBUTION OF SEDIMENT SALTATION AND SUSPENSION. THE COMPUTED RESULTS WILL BE PRESENTED IN SPHERICAL COORDINATES THROUGH MATHEMATICAL TRANSFORMATION.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government