| 单词 | turbulent flow |
| 例句 | What makes these images strike deep and seem something more than “nature photography” is the way they mirror life’s own rush of experience, with crystalline, perishable moments indelibly caught in the turbulent flow. Seattle-area artists play with visual rhythms from nature 2013-03-21T20:31:12Z And once again it’s a study in turbulent flow, with small-scale compositions that break open to enable exploration. New Music: New Albums From Estelle, Lambchop and Matthew Shipp Trio 2012-02-27T23:36:19Z In fluid dynamics, a turbulent flow refers to an irregular flow whereby eddies, swirls and flow instabilities occur. Engineering study employs deep learning to explain extreme events 2023-10-02T04:00:00Z The turbulent flow punches a carrot-shaped pipe through the ground, ripping out chunks of deep subsurface rock, including some that are studded with diamonds. When Ancient Eruptions Pumped Diamonds to Earth’s Surface 2023-07-26T04:00:00Z The strengthening fields, in turn, generated their own turbulent flow of stellar material. Star Cores Spin Surprisingly Slowly—Scientists Now Think They Know Why 2023-01-24T05:00:00Z It turns out that a soccer ball’s drag coefficient is approximately 2.5 times larger for laminar flow than for turbulent flow. Men’s World Cup Soccer Ball, the Al Rihla, Has the Aerodynamics of a Champion 2022-11-19T05:00:00Z Heart murmurs, consistent with their name, are sounds produced by turbulent flow around damaged and insufficiently closed heart valves. College Physics for AP Courses 2015-08-12T00:00:00Z The term murmur is used to describe an unusual sound coming from the heart that is caused by the turbulent flow of blood. Anatomy and Physiology 2013-06-19T00:00:00Z Dry describes how, in the late 1940s, Stommel used parsnips as “experimental apparatus” to study turbulent flow. Making the planetary personal: the roots of climate science 2019-09-16T04:00:00Z Coming off the water, though, the wind hits the trees and buildings of Hudson Heights, and the mounting obstacles create huge vortices of air that join the increasingly turbulent flow. New York Above 800 Feet 2016-06-02T04:00:00Z Though it may seem counterintuitive, roughening a ball’s surface delays the separation of the boundary layer and keeps a ball in turbulent flow longer. Men’s World Cup Soccer Ball, the Al Rihla, Has the Aerodynamics of a Champion 2022-11-19T05:00:00Z In the transition region, the flow can oscillate chaotically between laminar and turbulent flow. College Physics for AP Courses 2015-08-12T00:00:00Z Of course, turbulent flow in air is much harder for us to see than a turbulent stream! Wild Winds: Turbulent Flow around Structures 2015-09-17T04:00:00Z Though this model is incredibly simple, it captures the barest essentials of the complex nature of turbulent flow. Keep It Simple And Complex, Stupid 2015-04-20T04:00:00Z Attached at the extremity of each wing, they act to manage the flow of air passing the craft, reducing the amount of turbulent flow around the body and cutting drag. These Fancy New Winglets Will Save United $200 Million Each Year 2013-07-18T13:00:00Z If laminar flow starts at too high a speed, the ball begins to slow down much more quickly than a ball that maintains turbulent flow for longer. Men’s World Cup Soccer Ball, the Al Rihla, Has the Aerodynamics of a Champion 2022-11-19T05:00:00Z The transition to turbulent flow occurs for N′R between 1 and about 10, depending on surface roughness and so on. College Physics for AP Courses 2015-08-12T00:00:00Z The turbulent flow of water creates undulations in the bed sediments - a series of ripples or dunes that slowly migrate in the direction of the water current. Curiosity to return to some classic rocks 2013-05-08T22:42:41Z The complexities of the work led him to the development of new methods of computing, which were specifically devised to help with the difficulties of creating mathematical models of turbulent flow situations. Steven Orszag, Pioneer in Fluid Dynamics Study, Dies at 68 2011-05-07T23:01:14Z Even newer airframe designs such as those used in the 787 use an upward swept wing, which effectively mitigates turbulent flow on its own. These Fancy New Winglets Will Save United $200 Million Each Year 2013-07-18T13:00:00Z Understanding what causes the transition from laminar to turbulent flow requires massive mathematical and computing power. The aircraft of the future: Plane truths 2011-03-10T10:55:19Z Before we can define viscosity, then, we need to define laminar flow and turbulent flow. College Physics for AP Courses 2015-08-12T00:00:00Z The problem with turbulent flow is that it creates friction and drag that must be overcome by pumping harder, at higher cost. Observatory: Taming the Inner Turbulence of Pipelines 2010-03-22T23:27:00Z She broke out into a triumph song in whose turbulent flow the words 'physique' and 'efficiency' came frequently rolling. Years of Plenty The smooth flow is called laminar flow, whereas the swirls and eddies typify turbulent flow. College Physics for AP Courses 2015-08-12T00:00:00Z Moreover, in some cases a pilot might wish to do the opposite and promote turbulent flow—for example, when slowing down. The aircraft of the future: Plane truths 2011-03-10T10:55:19Z |
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