DYNAMIC PRESSURE GAGE DEVELOPMENT FOR SUBSONIC FLOWS

Award Information
Agency:
Department of Defense
Branch
Defense Threat Reduction Agency
Amount:
$49,935.00
Award Year:
1988
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
9185
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Tech Reps Inc
5000 Marble Ave Ne - Ste 222, Albuquerque, NM, 87110
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
NOEL H ETHRIDGE
(301) 272-4200
Business Contact:
() -
Research Institution:
n/a
Abstract
THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP AN IMPROVED DIFFERENTIAL PRESSURE GAGE FOR DETERMINING DYNAMIC PRESSURE WITHIN BLAST AND SHOCK WAVE FLOWS WHERE THE FLOWS ARE SUBSONIC. DERIVATION OF DYNAMIC PRESSURE FROM A MEASUREMENT OF THE DIFFERENCE BETWEEN STAGNATION PRESSURE AND SIDE-ON OR STATIC PRESSURE REQUIRES USE OF THE SIDE-ON PRESSURE RECORD TO CORRECT FOR COMPRESSIBILITY EFFECTS. CURRENTLY THE SIDE-ON PRESSURE WAVEFORM MUST BE MEASURED BY A SEPARATE GAGE LOCATED APART FROM THE DIFFERENTIAL PRESSURE GAGE. THIS WAVEFORM MAY DIFFER FROM THAT OCCURRING AT THE DIFFERENTIAL PRESSURE GAGE LOCATION. UNDER THIS PROJECT, THE DIFFERENTIAL PRESSURE GAGE PROBE WILL BE MODIFIED TO ADD A GAGE TO MEASURE THE SIDE-ON PRESSURE IN ADDITION TO THE DIFFERENTIAL PRESSURE. THIS MODIFIED PROBE WILL BE EVALUATED IN SHOCK TUBE TESTS.

* information listed above is at the time of submission.

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