Purdue University researchers, in the culmination of a four-year NASA-funded project, have created a method that will enable engineers to design more efficient systems for heating, cooling and other applications in spacecraft for missions to Mars and the moon.
The new method uses a model that was recently shown to be highly accurate in experiments onboard a NASA KC-135 aircraft that creates reduced gravity conditions such as those in earth orbit, on the moon and Mars. The aircraft flies in steep maneuvers, causing brief periods of microgravity in which to test theories for the design of space hardware, said Issam Mudawar, a Purdue professor of mechanical engineering, director of Purdues Boiling and Two-Phase Flow Laboratory and the universitys International Electronic Cooling Alliance.
"Our model can predict how these systems behave in reduced gravity based on operating conditions, how much fluid is flowing in a tube, how fast it is flowing, what the tube diameter and tube length are, and so on," Mudawar said. "What’s neat about the flight experiments is that not only did we get data about the microgravity of space travel, but we also simulated the reduced gravity of the moon and Mars."
Emil Venere | EurekAlert!
Further Improvement of Qubit Lifetime for Quantum Computers
09.12.2016 | Forschungszentrum Jülich
Electron highway inside crystal
09.12.2016 | Julius-Maximilians-Universität Würzburg
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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