EXAMINATION OF R-WIRE BURST USING A HYDRODYNAMIC MODEL

Award Information
Agency:
Department of Defense
Branch
Defense Threat Reduction Agency
Amount:
$49,977.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
6142
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Mission Research Corp
4935 N 30th St, Colorado Springs, CO, 80919
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
ROBERT A RACCA
(303) 528-8080
Business Contact:
() -
Research Institution:
n/a
Abstract
STUDIES WILL BE PERFORMED TO EXAMINE THE FEASIBILITY OF USING FAIRLY HIGH RESISTANCE CABLES (R-WIRES) AS A MEANS TO MITIGATE THE LARGE SREMP TRANSIENTS WHICH ARE EXPECTED IN BURIED AND OVERHEAD POWER-LINE DISTRIBUTIONS. THE ANALYSIS WILL UTILIZE COMPUTER CODES WHICH SOLVE THE ONE-DIMENSIONAL TRANSMISSION LINE EQUATIONS IN THE TIME DOMAIN USING FINITE DIFFERENCE TECHNIQUES. A MAJOR PORTION OF THIS EFFORT WILL BE DIRECTED TOWARDS THE INCORPORATION OF A HYDRODYNAMIC MODEL WITHIN THE FRAMEWORK OF THE 1-D CODES TO DESCRIBE THE BEHAVIOR OF THESE RESISTIVE CABLES UNDER ELECTRICAL STRESS. A SUFFICIENTLY LARGE AMOUNT OF ENERGY INJECTED INTO THE CABLE WILL RESULT IN VAPORIZATION OF THE MATERIAL AND SUBSEQUENT FORMATION OF A LOW RESISTANCE "RESTRIKE ARC." EARLIER STUDIES OF RESISTIVE CABLES EMPLOYED A SIMPLE JOULE HEATING MODEL WITHIN THE 1-D CODES. THE PROPOSED STUDY WILL CAREFULLY EXAMINE THE VAPORIZATION AND RESTRIKE PHENOMENON USING THE MORE SOPHISTICATED HYDRODYNAMIC MODEL TO DESCRIBE THESE EFFECTS.

* information listed above is at the time of submission.

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