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NASA KC-135 Flight. Georgia Tech Aerospace Engineering October 24, 2001. Dynamic Behavior of Surface Tension in Microgravity. Agenda. NASA RGSFOP Program 2001 Georgia Tech Microgravity Team Experiment Overview Experiment Setup Flight Day 1 Flight Day 2 Data Reduction
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NASA KC-135 Flight Georgia Tech Aerospace Engineering October 24, 2001 Dynamic Behavior of Surface Tension in Microgravity
Agenda • NASA RGSFOP Program • 2001 Georgia Tech Microgravity Team • Experiment Overview • Experiment Setup • Flight Day 1 • Flight Day 2 • Data Reduction • Continuation of Project • Acknowledgements
NASA’s Reduced Gravity Student Flight Opportunities (RGSFO) Program Students submit scientific experiment proposals If selected, spend a week in Houston and fly proposed experiment aboard KC-135 NASA RGSFO Program • KC-135 Weightless Wonder • a.k.a the “Vomit Comet” • Flies in parabolas to simulate weightlessness • Used primarily for astronaut training
2001 GT Microgravity Team Courtney Spells – Team Leader Robert Coffman Jordan Drewitt Alisa Hawkins Judy Kim Daniel Uhlig Advisor: Dr. Jerry Seitzman
Experiment Overview Dynamic Behavior of Surface Tension in Microgravity • Basic idea • View the dynamic motion of liquids of varying surface tension in zero-g • Objectives • Determine the frequency at which liquids oscillate • Determine a dampening effect • Practical Applications • Further research in quick deployment of liquid shapes in zero-gravity environment
Design and Construction • Box Design for liquid containment • 3D design done using Pro-E • Box built in AE Machine Shop • Ground Testing • High Speed camera test • Absorption test • Popping and procedure test
Pre-Flight in Houston • Test Readiness Review • Lectures • Motion Sickness • Tours of NASA • Hypobaric Chamber Ride Taken to simulated altitude of 25,000 ft to experience hypoxia
Flight Day 1 • Flyers • Robbie Coffman • Daniel Uhlig • Tested - Balloon sizing • ½, 1, 1½, 2 fluid ounces • Found - 2 fluid ounce balloons were most favorable • More liquid for viewing • Less shearing effect
Flight Day 2 • Flyers • Courtney Spells • Alisa Hawkins • Experiment Parameter • Varied Liquids Used • Water • Milk • Water/Soap • Olive Oil • Jello • Video Taped Motion of liquids during deployment
Data Reduction • Drops Vibration • V vertical diameter • H horizontal diameter V and H versus time (frames) v H
Data Reduction • Different types of liquids
Data Reduction • Different Sizes (Water) • Drop 1 (red) is twice as big as drop 2 (black Dash line is vertical Solid line is horizontal
Continuation of Project • 2002 Microgravity Team submitted follow-up flight proposal last Friday • Recommendations to 2002 team • New popping method which does not have such a shearing effect • High Speed camera • Better measurement techniques
Acknowledgements • Dr. Jerry Seitzman • NASA RGSFO Office • AE Machine Shop – Harry Rudd, Wayne Springfield, Mike Edwards • Georgia Space Grant Consortium • Texas Space Grant Consortium • Rebecca Bardwell, Larry Bowie of ICPA • Ted Lisbon of Microspec, Inc. • Dr. Robert Loewy, Dr. Stefan Dancila, Dr. Tim Lieuwen, Dr. Manohar Kamat • Allan Dokhan • Rebecca Cutri-Kohart, Sarah Graybeal, Kent Siebeneck
More Information • 2001 Georgia Tech Microgravity Webpage: www.ae.gatech.edu/~gravity • NASA Reduced Gravity Office Webpage: microgravityuniversity.jsc.nasa.gov