DEVELOPMENT OF ADVANCED INSTRUMENTATION FOR DROP SIZE AND LIQUID WATER CONTENT MEASUREMENTS IN CLOUDS

Award Information
Agency:
Department of Defense
Amount:
$257,000.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
Army
Award Year:
1989
Phase:
Phase II
Agency Tracking Number:
5453
Solicitation Topic Code:
N/A
Small Business Information
Aerometrics Inc.
Po Box 308, Mountain View, CA, 94042
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 William D Bachalo
 (415) 965-8887
Business Contact
Phone: () -
Research Institution
N/A
Abstract
DEVELOPMENT OF ADVANCED DIAGNOSTICS FOR THE DETERMINATION OF THE LIQUID WATER (LWC) FOR FOG AND CLOUDS IS PROPOSED. SUCH DATA ARE FUNDAMENTAL TO THE RESEARCH IN CLOUD PHYSICS, ACID PRECIPITATION, ELECTROMAGNETIC WAVE PROPAGATION, AND AIRCRAFT ICING. CURRENTLY, THE METHODOLOGIES FOR MEASURING LWC ARE TIME-CONSUMING, LACK VERSATILITY, AND LACK ACCURACY. UNDER THIS PROGRAM, THE RECENTLY DEVELOPED PHASE DOPPLER PARTICLE ANALYZER (PDPA) WILL BE EVALUATED AS A MEANS OF PROVIDING ACCURATE DROP SIZE SPECTRA, AIRFLOW SPEED, AND NUMBER OF DROPS COUNTED IN A MEASURED PERIOD OF TIME. THESE RESULTS ARE NEEDED ALONG WITH THE SAMPLING CROSS SECTION TO ESTABLISH THE LWC. CRITICAL QUESTIONS ON THE SYSTEM PERFORMANCE IN LOW TEMPERATURE ENVIRONMENTS AND ON AIRCRAFT WILL BE ADDRESSED. DEMONSTRATIONS ON THE CONSISTENT LEVELS OF ACCURACY IN THE MEASUREMENT OF THE LWC WILL BE PERFORMED. EVALUATIONS WILL BE MADE BY GENERATING SPRAYS OF SIZE DISTRIBUTIONS SIMILAR TO FOG AND CLOUDS WITH KNOWN LWC. MEASUREMENTS OF THESE SPRAYS WILL BE PERFORMED WITH THE PDPA AND COMPARED TO THE KNOWN NOZZLE FLOW RATES. THESE MEASUREMENTS WILL BE MADE IN THE AEROMETRICS' TWO-PHASE FLOW WIND TUNNEL AT A RANGE OF CONVECTION VELOCITIES.

* information listed above is at the time of submission.

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