Results 341 to 350 of about 191,825 (368)
Some of the next articles are maybe not open access.
2000
Publisher Summary Any propulsion system interacts with the ship hull. The flow field is changed by the (usually upstream located) hull. The propulsion system changes, in turn, the flow field at the ship hull. However, traditionally naval architects have considered propeller and ship separately and introduced special efficiencies and factors to account
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Publisher Summary Any propulsion system interacts with the ship hull. The flow field is changed by the (usually upstream located) hull. The propulsion system changes, in turn, the flow field at the ship hull. However, traditionally naval architects have considered propeller and ship separately and introduced special efficiencies and factors to account
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The Physics Of Listeria Propulsion
2008Listeria is a pathogenic bacterium, which can be dangerous for immune deficient individuals. It can be found almost everywhere, in particular in food such as soft cheese and smoked salmon. After ingestion, it is able to penetrate in the cellular system where it moves from cell to cell and divides on average every twenty minutes.
Prost, Jacques +3 more
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Propulsive jets and their acoustics
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2007The complex flow physics challenges and asks questions regarding these challenges a wide range of jet flows found in aerospace engineering. Hence, the daunting task facing Reynolds-averaged Navier–Stokes (RANS) technology, for which the time average of the turbulent flow field is solved, is set out. Despite the clear potential of large eddy simulation (
Stanley F. Birch +2 more
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Overview of NASA Electrified Aircraft Propulsion Research for Large Subsonic Transports
, 2017NASA is investing in Electrified Aircraft Propulsion (EAP) research as part of the portfolio to improve the fuel efficiency, emissions, and noise levels in commercial transport aircraft.
R. Jansen +4 more
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Journal of the American Institute of Electrical Engineers, 1921
This paper deals with the electric propulsion of practically all classes of vessels. The several types of electric drive are treated, in general, with special emphasis on Diesel-electric drive, as it is believed that this type of electric drive will be of most general interest, particularly to the inland section of our country, since it is especially ...
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This paper deals with the electric propulsion of practically all classes of vessels. The several types of electric drive are treated, in general, with special emphasis on Diesel-electric drive, as it is believed that this type of electric drive will be of most general interest, particularly to the inland section of our country, since it is especially ...
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32nd Joint Propulsion Conference and Exhibit, 1996
ANDRIANI, ROBERTO +2 more
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ANDRIANI, ROBERTO +2 more
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2012
Publisher Summary This chapter discusses propulsion of a rocket in outer space. The thrust or specific impulse is measured by the total impulse delivered by the engine per unit weight of propellant consumed. Electric propulsion systems have also been looked into.
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Publisher Summary This chapter discusses propulsion of a rocket in outer space. The thrust or specific impulse is measured by the total impulse delivered by the engine per unit weight of propellant consumed. Electric propulsion systems have also been looked into.
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Advanced structural ceramics in aerospace propulsion.
Nature Materials, 2016N. Padture
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2018
We start this chapter by pointing out that a preliminary vessel form has been developed, and a resistance curve in calm and operational conditions has been determined. The aft hull form will take some account of typical dimensions for power units and the intended propulsion device.
Alan Bliault, Liang Yun, Huan Zong Rong
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We start this chapter by pointing out that a preliminary vessel form has been developed, and a resistance curve in calm and operational conditions has been determined. The aft hull form will take some account of typical dimensions for power units and the intended propulsion device.
Alan Bliault, Liang Yun, Huan Zong Rong
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Energy efficiency of integrated electric propulsion for ships – A review
, 2020C. Nuchturee, Tie Li, Hongpu Xia
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