DTIC ADA248767: United States Air Force Summer Research Program 1991. Summer Faculty Research Program (SFRP) Reports. Volume 5A. Wright Laboratory

525 Pages·18.9 MB·English

by  Defense Technical Information Center

PW4
UNITED STATES AIR FORCE
SUTAMER RESEARCH PROGRAM 1991
--
.SUMME9 FACULTY RESEARCH PROGRAM
VOLUME 15A
WRIGHT LABORATORY
SaO UPLANDER WAY
CULVER CITY, CA 90230-660
,, M.0T, TED TO:
LT. COL. CLAUDE CAVENDER
PROGRAM MAAGER
AJR FORCE OFFOCE OF SCENTIFIC RESEARCH
BOLLING AIR FORCE BASE
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WASHINGTON. D.D.
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UNTthD STATES AIR FORCE
SUMMER RESEARCH PROGRAM - 1991
SUMMER FACULTY RESEARCH PROGRAM (SFRP) REPORTS
VOLUME 5A
WRIGHT LABORATORY
RESEARCH & DEVELOPMENT LABORATORIES
5800 Uplander Way
Culver City, CA 90230-6608
Program Director, RDL Program Manager, AFOSR
Gary Moore Lt. Col. Claude Cavender
Program Manager. RDL Program Administrator, RDL
Claude Baum Gwendolyn Smith
Submitted to: Accesion For
NTIS CRA&I
DTIC TAB
Uriai:ot:ced
AIR FORCE OFFICE OF SCIENTIFIC RESEARCH Justificatlon
Boiling Air Force Base By ......................
Di~t ibotion I
Washington, D.C.
Availability Co.
December 1991 Avail a.idijc
£,t Dist S,p,ca ,
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InIl •I• Imuro• Im iu n U~lUmm IA iIL I
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REPORT DOCUMENTATION PAGE oM -OO, X-081
1. AGEM" USE ONLY (Leave Wank) 2. REPORT DATE 3 REPORT TYPE AND DATES COVERED
1 9 January 9', ,30 Se, '0-30 Sev 91
!4.T iFtlE ANDeS UB' ' S. FU)SINDG NUMBERS
1991 Surmner Faculty Research Prograrm (SFPRP)
V6. ,q
Volumes 2-5b F49620-.,-C-0076
6. AUTNOF[ )
Nr Gary Moore
7. PERFOrMING ORGANIZATION dAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION
Research Development Laboratories (RDL) REPORT NUMBER
5800 Uplander Way
Culver City CA 90230-6608 ,
9. SPONSORING IMONITORING AGE'CY NAME(S) AND ADORESS(ES) 10. SPONSORING IMONITORING
AGENCY REPORT NUMBER
AFOSR/NI
Bldg 410
Boll .igA FB DC 20332-6448
Lt Col V. Claude Cavender
11. SUPPLEMENTARY NOTES
12a. DISTRIBUTION /AVAILABILITY STATEMENT 12b. DiSTRiBUTION COC..
UNLIMITED
13. ABSTRACT (Maximum 200 words)
The purpose of this program is to develop the basis fo: continuing research of interest to
the Air Force at the institution of :he faculty member: to stimulaie - ntinuing i elations
among faculty members and professicnal peers in the Air Force; to e-hance the research
interests and capabilities of scientific and engineering educators; and to provide follow-on
funding for research of particular pro nise that was started at an Air Force laboratory
under the Summer Faculty Research Program.
During the summer of 1991 170 univc rsity facuty conducted research at Air Foice
laboratories for a period of 10 weeks . Fach p rticipant pri ided a report of their research,
and these reports are consolidated into this aniuai report.
14. SUBJECT TERMS IS. NUMBER OF PAGi:S
16. P'.RCE CODE
17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SICURITY CLASSIFICKATION 20. LIMITATION OF ABSTRACT
OF REPORT OF THIS PAGE OF ABSTRACT
UNCLASSIFIED UNCLASSIFIED UNCLASSIFIED UL
NSN 7540-01-280.5500 Standard Form 298 (Rev 2-89)
Presribed by ANSI Std Z39-18
296-102
1'REFACE
Reports in this volume are numbered consecutivcly beginning with number 1. Each report
is paginazed with the report number followed by consecutive page numbers, e.g., 1-1,
1-2, 1-3; 2-1, 2-2, 2-3.
Due to its length, Volume 5 is bound in two parts, 5A and 5B. Volume 5A contains
reports #1-30. Volume 5B contains reports #31-55. The Table of Contents for Volume 5 is
included in both paws.
This document is one of a set of 13 volumes describing the 1991 AFOSR Summer Research
Program. The following volumes c&mprise the set:
VOLIIE TITLE
1 Program Management Report
Summer Facully Research Program (SFRP) Reports
2 Armstrong Laboratory, Wilford Hall Medical Center
3 Phillips Laboratory, Civil Engineering Laboratory
4 Rome Laboratory, Arnold Engineering Development Center, Frank J. Seiler Research Laboratory
5A&B Wright Laboratory
Graduate Student Research Program (GSRP) Reports
6 Armstrong Laboratory, Wilford Hall Medical Center
7 Phillips Laboratory, Civil Engineering Laboratory
8 Rome Laboratory, Arnold Engineering Development Center, Frank J. Seiler Research Laboratory
9 Wright Laboratory
High School Apprenticeship Program (HSAP) Reports
10 Armstrong Laboratory
11 Phillips Laboratory, Civil Engineering Laboratory
12 Rome Laboratory, Arnold Engineering Development Center
13 Wright Laboratory
1991 FACULTY RESEARCH REPORTS
Wright Laboratory
Repro
Number Reort Title Author
VOLUME A
Aero fropulsion & Power Laboratory (PROP)
I Influence of Operating Temperature and Quench and Stability of Oxide Dr. Mingking Chyu
High-Ta Superconductors
2 Turbulent Length Scale Measurements in Axisymmetric Sudden Expansion Dr. Richard Gould
Using LDV
3 Electrical Field Effects on Propane/Air Flames Dr. Harold Harris
4 Investigation of the Combustion Characteristics of Swirled Injectors in a Dr. Paul Hedman
Confined Coannular System with a Sudden Expansion
5 Critical Assessment of Research in Elastohydrodynamic Lubrication Dr. Michael Khonsari
6 Effects of Riblets on Turbine Blade Heat Transfer and Velocity and Heat Dr. Paul Maciejewski
Transfer Measurements in a Ribbed Channel
7 Electron Density Measurements in Thermionically-Assisted Discharges in Dr. Douglas Marcum
Cesium-Argon Plasmas
8 A Numerical Method for Time-Dependent Incompressible and Compressible Dr. Tien-Mo Shih
Naver-Stokes Flows
9 Experimental and Analytical Investigation of Effects of Noncondensible Gases Dr. Kaveh Tagavi
on On-Axis Rotating Heat Pipes
10 Measurements of Droplet Velocities and Size Distributions in Pressure/Air Dr. Richard Tankin
Blast Atomizer
11 Transient Effects in Glow Discharges Using the GEC Reference Reactor Dr. Fred Wells
Armament Laboratory (ATL)
12 Signal Processing for High Speed Video Technology Dr. Eugene Chenette
13 Light-Gas Gun Firing-Cycle Design for High Velocity and Low Projectile Dr. Rober Courter
Loading
14 Two Dimensional Simulation of Railgun Plasma Arcs Dr. Manual Huerta
15 Nonlinear Estimation for Exoatmospheric Trajectories: The Daum-Based Dr. Antonio Magliaro
Filter
16 Practical Considerations for a First Cut Multi-Sensor Fusion Seeker Dr. Charlesworth Martin
ii
bRee T- Author
17 Newton's Method Solvers for the Navier-Stokes Equations Dr. Paul Orkwis
18 Analysis and Design of Nonlinear Missile Autopilots Dr. Jeff Shamma
19 Qualitative Effects of KKV Impact Locations on Hydraulic RAM in Fuel Dr. Steven Trogdon
Tanks at Fifty Percent Ullage (Hydrocode Analysis)
20 Mounting Techniques for High G L-pact Sensors Dr. Wayne Zimmermann
Avionics Laboratory (AVION)
21 Multiresolution FLIR Image Analysib Dr. Raj Achaya
22 Automatic Segmentation of Infrared Images Dr. Satish Chandra
23 Performance Evaluation of Rule Grouping Algorithm Ruming on the Dr. Ing-Ray Chen
Activation Framework Architecture
24 A Note on Prony's Method Dr. David Choate
25 Correlation Dimension of Chaotic Attractors Dr. Thomas Gearhart
26 Fiber Laser Preamplifier for Laser ?adar Detectors Dr. Richard Miers
27 A Methodology for Employing Modulation Quality Factors in the Analysis of Dr. Glenn Prescott
LPI Waveforms
28 Evaluating the Reusable Ada Avionics Software Packages (RAASP) Dr. Brian Shelbume
29 Filtering by Similarity Dr. Thomas Sudkamp
30 Aspects of Pattern Theory Dr. James Wolper
VOLUME SB
Electronic Technology Laboratory (ETL)
31 Velocity Distribution in a Degenerately-Doped Submicron-Length Field Effect Dr. Vijay Arora
Transistor
32 Sol-Gel Waveguide Laser Fabrication Dr. Raymond Zanoni
Flight Dynamics Laboratory (F)L)
33 Hypersonic Vehicle Control Stratcgies: Preliminary Consideration Dr. Daniel Biezad
34 A Study on Interferometric To&, graphic Application of the Aerodynamic Dr. Soyoung Cha
Experimental Facilities at Wright Laboratory
111
Revort Tit Author
Wfnfh Labomftor (cont.)
35 (Not Used)
36 Evaluation of the Analytical Design Package (ADP) for Frameless Dr. Joe Chow
Transparency Program
37 A Massively Parallel Algorithm for Large-Scale Nonlinear Computation Dr. Shurit Dey
38 Decentralized Control of Flexible Structures with Uncertain Interconnections Dr. George Flowers
39 Computational Prediction of Static and Rolling of an Aircraft Tire on a Rigid Dr. Manjriker Gunaratne
Surface as Prelude to Wear Studies
40 D.'ply of Laminated Panels with Perforation Due to Impact Dr. David Hui
41 Monitorng of Damage Accumulation for the Prediction of Fatigue Lifetime Dr. Byung-Lip Lee
of Cord-R.:bb~r Composites
42 In-Flight Structural Combat Damage Detection and Evaluation for Enhanced Dr. Vernon Matzen
Survivability of Military Aircraft
43 A Report on Robust Control Design for Structured Uncertainties Dr. Jenny Rawson
44 Experimental Investigation of the Influence of Constrained-Layer Damping Dr. Lawrence Zavodney
Treatment on Parametric and Autoparametric Resonances in Nonlinear
Structural Systems
Materials Laboratory (MAT)
45 Semi-Empirical Self-Consistent Calculations of GAAS Surface Restructuring Dr. Shashikala Das
46 X-ray Crystallographic Studies of Model Systems for Rigid Rod Polymers and Dr. Albert Fratini
Molecules with Poteatial Nonlinear Optical Properties
47 Computer-Aided Process Planning for Grinding Operations Dr. Rakesh Govind
48 Transmission Electron Micro!.copy of Deformation at the Interface of Dr. Warren Moberly
Ti-6-4//SCS6 SiC Fiber Composites
49 Ultrasonic Beam Propagation: Diffractionless Beams and Beams in Dr. Byron Newberry
Anisotropic Media
50 Geometric Reasoning for Process Planning Dr. Joseph Nurre
51 Synthesis and Characterization of Chiral Mesogens for Use in Cyclic Siloxane Dr. Steven Pollack
Liquid Crystalline Materials
iv
Report
Number Report Title Author
Wright Laboratory (cont.)
52 Ab Initio Computational and NMR Relaxation Time Investigations of Dr. Martin Schwartz
Rotational Barriers and Chain Dynamics in Perfluoropolyalkylethers
53 On Photoreflectance Spectra from Two Dimensional Electron Gas in Dr. Michael Sydor
GaAs/AIGaAs Heterojunctions
54 Creep Behavior of a Fine-Grained Y A 0 +YAIO (18 Vol. %)M aterial Dr. Jeffrey Wolfenstine
3 5 12 3
55 Elastic Moduli of Fiber Reinforced Brittle Matrix Composites with Interfacial Dr. Fuh-Gwo Yuan
Debonding
V
INFLUENCE OF OPERATING TEMPERATURE ON QUENCH AND
STABILITY OF OXIDE HIGH-TC SUPERCONDUCTORS
M.K. Chyu
Department of Mechanical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
C.E. Oberly
Aero Propulsion and Power Directorate
Wright Laboratory
Wright Patterson Air Force Base, OH 45433
ABSTRACT
This paper examines the influence of operating temperature, ranging from 20K to
80K, on the stability and normal zone propagation in a silver sheathed, YBCO
superconductor tape. The distributions of temperature and heat generation are obtained
numerically by solving a transient, two-dimensional energy equation with temperature-
dependent properties and a current-sharing model. The present results suggest that a 20K
operation is considerably more stable than its 80K counterpart. In addition, during a pulse-
induced quench zone propagation, most of the ohmic heating is generated in the YBCO
superconductor for a 20K operation. On the other hand, the silver sheath generates most of
the heat for an 80K operation. Imposing transverse cooling significantly promotes stability
and reduces normal zone propagation velocity. However, it has little influence on the
instantaneous rise in local temperature during a disturbance. Such a temperature spike,
largely caused by the low thermal diffusivity of YBCO, may exceed YBCO melting
,emperature.
1-1