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Articles 1 - 9 of 9

Full-Text Articles in Mechanical Engineering

Optimization Of A Low Reynolds Number 2-D Inflatable Airfoil Section, Todd A. Johansen Dec 2011

Optimization Of A Low Reynolds Number 2-D Inflatable Airfoil Section, Todd A. Johansen

All Graduate Theses and Dissertations

A stand-alone genetic algorithm (GA) and an surrogate-based optimization (SBO) combined with a GA were compared for accuracy and performance. Comparisons took place using the Ackley Function and Rastrigin's Function, two functions with multiple local maxima and minima that could cause problems for more traditional optimization methods, such as a gradient-based method. The GA and SBO with GA were applied to the functions through a fortran interface and it was found that the SBO could use the same number of function evaluations as the GA and achieve at least 5 orders of magnitude greater accuracy through the use of ...


Astro Camp Presentation, Get Away Special Team 2011 Jul 2011

Astro Camp Presentation, Get Away Special Team 2011

Education and Outreach

No abstract provided.


Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Mictrogravity, Troy Munro, Heng Ban Apr 2011

Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Mictrogravity, Troy Munro, Heng Ban

Presentations

No abstract provided.


Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Microgravity, Troy Munro, Andrew Fassman Mar 2011

Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Microgravity, Troy Munro, Andrew Fassman

Presentations

The motivation of this nucleate boiling research is to understand the effects of surface geometry and heat flux as applied to a thin wire heater. This will further the understanding of the fundamental behaviors of boiling onset, steady state heat transfer, and bubble dynamics with respect to nucleate boiling with the goal of creating efficient thermal management systems for future space applications. Using three different thin platinum wire geometries and five different power levels, subcooled water was boiled over a period of approximately 30 seconds for 15 parabolic arcs to simulate microgravity. To represent the trends in bubbles behavior across ...


Effects Of Heat Flux On Nucleate Boiling In Microgravity, Andrew Fassman Feb 2011

Effects Of Heat Flux On Nucleate Boiling In Microgravity, Andrew Fassman

Presentations

No abstract provided.


The Design And Construction Of A Microgravity Boiling Experiment, Troy Munro Feb 2011

The Design And Construction Of A Microgravity Boiling Experiment, Troy Munro

Presentations

No abstract provided.


Report For 2011 Urco Funded Experiment: Development Of Optimal Bubble-Seeding Microheaters To Study Nucleate Boiling Heat Transfer In Microgravity, Ryan Martineau Jan 2011

Report For 2011 Urco Funded Experiment: Development Of Optimal Bubble-Seeding Microheaters To Study Nucleate Boiling Heat Transfer In Microgravity, Ryan Martineau

Reports and Proposals

No abstract provided.


Development Of Optimal Bubble-Seeding Microheaters To Study Nucleate Boiling Heat Transfer In Microgravity, Ryan Martineau Jan 2011

Development Of Optimal Bubble-Seeding Microheaters To Study Nucleate Boiling Heat Transfer In Microgravity, Ryan Martineau

Reports and Proposals

No abstract provided.


Get Away Special: Microgravity Research Team, Getaway Special Team Jan 2011

Get Away Special: Microgravity Research Team, Getaway Special Team

Education and Outreach

No abstract provided.