HOT-BLOCK ANEMOMETRY

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 6391
Amount: $53,320.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Scientific Research Assocs Inc
Po Box 1058, Glastonbury, CT, 06033
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR BRIAN E THOMPSON
 (203) 659-0333
Business Contact
Phone: () -
Research Institution
N/A
Abstract
RESEARCH AND DEVELOPMENT OF A MAJOR INNOVATION IN FLOW MEASURMENT, CALLED HOT-BLOCK ANEMOMETRY, IS PROPOSED FOR MEASURING FLUID VELOCITY. MEASUREMENT OF VELOCITY CHARACTERISTICS IN COMPLEX AND UNSTEADY FLOWS IS A PROBLEM OF GREAT PRACTICAL IMPORTANCE. HOT-BLOCK ANEMOMETRY IS PROPOSED TO EXTEND CURRENT CAPABILITY AND TO PROVIDE INSTANTANEOUS VALES OF FLOW SPEED AND DIRECTION IN THE COMPLETE RANGE FROM SIMPLE, LAMINA FLOWS TO COMPLEX, TURBULENT FLOWS. HOT BLOCK ANEMOMETRY IS AN EXTENSION OF WELL-ESTABLISHED THERMAL ANEMOMETRY AND HAS RESULTED IN PART FROM RECENT DEVELOPMENTS IN MICROCOMPUTER AND SURFACE-COATING TECHNOLOGIES. HOT-BLOCK ANEMOMETRY WILL PROVIDE CONTINUOUS AND SIMULTANEOUS MEASUREMENT OF ALL THREE VELOCITY COMPONENTS IN UNSTEAD FLOWS AND IN A WIDE RANGE OF TURBULENT FLOWS. MEAN AND TURBULENT QUANTITIES OBTAINED WITH HOT-BLOCK ANEMOMETRY SHOULD BE MORE ACCURATE THAN THOSE OBTAINED WITH 5-HOLE IMPACT PROBES OR HOTWIRE ARRAYS AND MUCH LESS EXPENSIVE THAN THOSE OBTAINED WITH LASER VELOCIMETRY. THE PHASE I FEASIBILITY STUDY WOULD PROVIDE A DESIGN, AND AN ASSESSMENT OF MANUFACTURABILITY OF A HOT-BLOCK PROBE. PHASE IIWOULD DEVELOP A PROTOTYPE PROBE, AN ASSOCIATED DATA-ACQUISITON SYSTEM AND SOFTWARE PACKAGE, AND WOULD PROVIDE A COMPLETE PROTOTYPE INSTRUMENT. PHASE III WOULD DEVELOP A MARKETABLE PRODUCT, THE HOT-BLOCK ANEMOMETRY SYSTEM AND PROBES, IN PREPARATION FOR COMMERCIAL SALES. THE PROPOSED EFFORT, IF SUCCESSFUL, WOULD PROVIDE AN INNOVATIVE INSTRUMENT AND ESTABLISH TECHNIQUES FOR ITS USE.

* information listed above is at the time of submission.

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