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Wake
In fluid dynamics, a wake may either be:
or both.
Wake effects caused by viscosity
The wake is the region of disturbed flow (often turbulent) downstream of a solid body moving through a fluid, caused by the flow of the fluid around the body.
For a blunt body in subsonic external flow, for example the Apollo or Orion capsules during descent and landing, the wake is massively separated and behind the body is a reverse flow region where the flow is moving toward the body. This phenomenon is often observed in wind tunnel testing of aircraft, and is especially important when parachute systems are involved, because unless the parachute lines extend the canopy beyond the reverse flow region, the chute can fail to inflate and thus collapse. Parachutes deployed into wakes suffer dynamic pressure deficits which reduce their expected drag forces. High-fidelity computational fluid dynamics simulations are often undertaken to model wake flows, although such modeling has uncertainties associated with turbulence modeling (for example RANS versus LES implementations), in addition to unsteady flow effects. Example applications include rocket stage separation and aircraft store separation.
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Latest News for: wake
In the wake of Kavanaugh, who owns the Wisconsin voter enthusiasm edge?
Madison
05 Oct 2018
The contentious confirmation process for U.S. Supreme Court nominee Brett Kavanaugh may serve to fire up the Republican base ahead of the Nov. 6 election, Assembly Speaker Robin Vos, R-Rochester, said this week ... ....
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UW linebackers T.J. Edwards, Ryan Connelly led the recovery in the wake of the loss ...
Milwaukee Journal Sentinel 05 Oct 2018
Ryan Connelly had a huge stop on third-and-goal in the third quarter at Iowa and T.J. Edwards added a critical interception ... ....
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These Wake school leaders were named principal and assistant principal of the year
The News & Observer 05 Oct 2018
Two Raleigh magnet school leaders were named the Wake County school system’s top school administrators on Thursday. Will Chavis of Enloe High School was named Wake County’s 2018-19 Principal of ... ....
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For Wake Forest’s coaching staff, Clemson’s defensive line is poisonous
Southwest Daily News
05 Oct 2018
The first time that Wake Forest’s football coaching staff reviews film of their next opponent, there’s a keyword used to identify which defensive linemen can really wreak havoc on the Deacons’ offense. And when the Deacons’ staff looks at Clemson’s defensive line, it looks like a cabinet full of “poison.”. “We have an ID for a guy, a lot of teams will have that one or two players,” Clawson said ... “Poison, poison, poison, poison.” ... ....
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5 things to know about Wake Forest’s opponent: Clemson
The Portland Sun
05 Oct 2018
For the second time in three weeks, Wake Forest will play host to a top-10 team when Clemson arrives at BB&T Field on Saturday ... If Wake Forest’s offense is to have any success against the Tigers, it’ll start with moving their NFL-quality defensive line off the ball ... I mean, they are good, they’ve got depth,” Coach Dave Clawson of Wake Forest said ... It doesn’t matter who’s at QB ... said ... 4 ... Wake Forest knows this, and Clemson does too ... .......
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16 'anxiety thoughts' people have when they first wake up.
Good 05 Oct 2018
And while many people learn to live with and manage “anxiety thoughts” on a daily basis, it can be especially difficult to wake up and get accosted by them, sometimes before you even get out of bed ... Or maybe you wake up and trade the peace of sleep for a flood of intrusive thoughts you can’t find your way out of ... 1 – “I wake up anxiously listing all of the things I have to get done....
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vDirectorate of Archaeology wakes up after ancient house demolished
The News International 05 Oct 2018
PESHAWAR. The Directorate of Archeology and Museums has asked the police to register a case against the owner after he demolished major portion of a house of archeological value located along the Heritage Trail ... It was learnt that Ali Raza Khan had purchased the building having archeological importance a few months ago. It was a three-storey building, but the two floors were of historical importance and the third one was built later ... ....
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Scalper Lobbying Group Fires Shot at Ticketmaster in Wake of FTC Workshop Announcement
Billboard 05 Oct 2018
A lobbying group for ticket scalpers has launched a broadside against Ticketmaster, seizing on an announcement that the Federal Trade Commission is holding a workshop on ticketing to eviscerate the primary ticketing giant on a host of grievances over programs like Verified Fan ... [readmore.8478325] ... Last year, one of NATB's members Jason Nissen was accused of operating a Ponzi scheme by the U.S ... [readmore.8280775} ... [readmore.502937]....
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Elementary school parents want a permanent armed officer. That would be a first in Wake.
The News & Observer 04 Oct 2018
Some parents are threatening to pull their children out of Jones Dairy Elementary School if it doesn’t become the first Wake County elementary school to have a permanent armed officer ... ....
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Brooklyn business professor claims sexual assault is a male rite of passage in wake of ...
Raw Story 04 Oct 2018
A business professor at Brooklyn College expressed his belief that sexual assault is a male rite of passage in the wake of allegations against Supreme Court nominee Brett Kavanaugh ... The post Brooklyn business professor claims sexual assault is a male rite of passage in wake of Brett Kavanaugh allegations appeared first on Raw Story ... ....
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Stretch of Capital Boulevard in Wake Forest closed Wednesday evening after ‘incident’
The News & Observer 04 Oct 2018
A stretch of Capital Boulevard was closed in both directions Wednesday evening because of a “hazmat incident,” according to a news release from the town of Wake Forest. Police and ... ....
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