Linear induction motor - Revision history

en>Willem89: Replaced the words "permit allows" with "enable" in the last line - "Linear induction motors are also used in looms, magnetic levitation permit allows bobbins to float..."

2015-01-02T08:57:29Z

Replaced the words "permit allows" with "enable" in the last line - "Linear induction motors are also used in looms, magnetic levitation permit allows bobbins to float..."

← Older revision		Revision as of 10:57, 2 January 2015
Line 1:		Line 1:
	~~<br><br>[http://devolro~~.~~com/exterior legendary]<br><br>At this exciting event, people can test drive the Toyota's 4X4 machines such because your Tundras, Tacomas~~ and FJ Cruisers in the simulated dirt environment. Blood pressure levels . it can the connection with a lifetime if possess driven a 4X4 machine off racing.<br><br><br><br>When my hubby brought this finding to the attention of the Ft. Wayne Indiana Toyota dealer, the trainer told us they would look into the matter. After wasting 1 week before actually doing almost anything to change this lease, we had been told that ~~too ever late. The salesman never offered us this deal, and the sales manager told us their dealership gave us the cheapest price they could maybe~~. In the same sentence the sales leader told us we qualified for the base offer. Basically they didn't give us the cheapest price they might well have. They gave us the highest lease price we were willing spend for. My credit score is ~~excellent, but it would not have crafted a difference to this dealership~~. When we had shopped around before signing our lease, we would have definitely got such a better trade toyota tundra tuning .<br><br>The Chevrolet Silverado Crew Cab LT2 is the third in the ranking. It possesses a great high engine capacity along with the consumption is efficient. It is the cheapest of ~~this trucks. Its off-road performance is exceptional and is actually possible to lower for stability~~ in ~~fact it i balanced~~ to ~~allow it to keep at high-speed even while carrying to capacity. Authorised favorite some thing people likewise sips gas has good transmission and now it is affordable~~. It is ~~used both as a SUV because a truck since tend to be : enough space for 5 passengers~~.~~<br><br>For Busch~~'s ~~part, he was gracious with his runner-up finish despite having never won at the paperclip-shaped half mile~~. ~~Gone,~~ it ~~seems, are the days of seeing him stomping away from his race vehicle to his hauler to avoid post-race your media. The NCWTS owner~~/~~driver told SPEED's Krista Voda his truck went away after the final restart with four laps to opt.<br><br>The 2UZFE is a 4.7L~~ [http://devolro.com ~~extreme~~] engine also produced at the Huntsville grow plants. It also has a 94mm bore, but the stroke is reduce to 84mm. Again, we possess a 32 valve DOHC. The government dual VVT-I on this engine though - only variable valve timing. The 2UZFE implements a cast iron block and aluminum moves.<br><br>The Ford Ranger, Nissan Frontier and Toyota Tacoma are all highly worthy compact trucks. The perfect vehicles if you plan on starting a landscaping organisation. They offer 4 and 6 cylinder engine options but to be honest they aren't all much toyota tundra off road more frugal than larger full size pickup trucks which offer more value for the buck and far nicer rooms. If you love your options simple and should not fathom for instance a built-in bed step or other such full size truck cleverness these are fine picks.<br><br>2009 Next year Pickup 2WD: With a town mileage of 21 together highway mileage of 27; this has become most fuel efficient small pick ups in the market today. The 4 cylinder, 2.3 liter engine and a manual 5 speed transmission offer superior performance having to break the standard. Available in 3 trims, the compact 2WD offers value for money whether you buy the XL, XLT or Sport. Their 2010 version of the model, many take your pick between manual or automatic point.		Hi several. My name is Maynard and I totally dig that details. Supervising is his day job now. One of what I love most in order to do design but I'm thinking on starting new things. California is the place he loves almost any. She's been working on her behalf website remedied time appropriate now. Check it out here: http://[http://devolro.com/armoring devolro].com/armoring

en>Incompetence: /* History */ added simulation of magnetic river (transverse flux induction motor)

2014-02-14T21:41:32Z

History: added simulation of magnetic river (transverse flux induction motor)

← Older revision		Revision as of 23:41, 14 February 2014
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	~~The '''Ekman number''' ('''Ek''') is a~~ [~~[dimensionless number~~]~~] used in describing [[geophysics\|geophysical]] phenomena~~ in the ~~[[oceans]] and [[Celestial body atmosphere\|atmosphere]]~~. ~~It characterises~~ the ~~ratio of [[viscosity\|viscous]] forces in~~ a ~~[[fluid]]~~ to the ~~[[Coriolis effect\|fictitious forces]] arising from [[planet]]ary [[rotation]]~~. ~~It is named after~~ the ~~[[Sweden\|Swedish]] [[oceanographer]] [[Vagn Walfrid Ekman]]~~.		<br><br>[http://devolro.com/exterior legendary]<br><br>At this exciting event, people can test drive the Toyota's 4X4 machines such because your Tundras, Tacomas and FJ Cruisers in the simulated dirt environment. Blood pressure levels . it can the connection with a lifetime if possess driven a 4X4 machine off racing.<br><br><br><br>When my hubby brought this finding to the attention of the Ft. Wayne Indiana Toyota dealer, the trainer told us they would look into the matter. After wasting 1 week before actually doing almost anything to change this lease, we had been told that too ever late. The salesman never offered us this deal, and the sales manager told us their dealership gave us the cheapest price they could maybe. In the same sentence the sales leader told us we qualified for the base offer. Basically they didn't give us the cheapest price they might well have. They gave us the highest lease price we were willing spend for. My credit score is excellent, but it would not have crafted a difference to this dealership. When we had shopped around before signing our lease, we would have definitely got such a better trade toyota tundra tuning .<br><br>The Chevrolet Silverado Crew Cab LT2 is the third in the ranking. It possesses a great high engine capacity along with the consumption is efficient. It is the cheapest of this trucks. Its off-road performance is exceptional and is actually possible to lower for stability in fact it i balanced to allow it to keep at high-speed even while carrying to capacity. Authorised favorite some thing people likewise sips gas has good transmission and now it is affordable. It is used both as a SUV because a truck since tend to be : enough space for 5 passengers.<br><br>For Busch's part, he was gracious with his runner-up finish despite having never won at the paperclip-shaped half mile. Gone, it seems, are the days of seeing him stomping away from his race vehicle to his hauler to avoid post-race your media. The NCWTS owner/driver told SPEED's Krista Voda his truck went away after the final restart with four laps to opt.<br><br>The 2UZFE is a 4.7L [http://devolro.com extreme] engine also produced at the Huntsville grow plants. It also has a 94mm bore, but the stroke is reduce to 84mm. Again, we possess a 32 valve DOHC. The government dual VVT-I on this engine though - only variable valve timing. The 2UZFE implements a cast iron block and aluminum moves.<br><br>The Ford Ranger, Nissan Frontier and Toyota Tacoma are all highly worthy compact trucks. The perfect vehicles if you plan on starting a landscaping organisation. They offer 4 and 6 cylinder engine options but to be honest they aren't all much toyota tundra off road more frugal than larger full size pickup trucks which offer more value for the buck and far nicer rooms. If you love your options simple and should not fathom for instance a built-in bed step or other such full size truck cleverness these are fine picks.<br><br>2009 Next year Pickup 2WD: With a town mileage of 21 together highway mileage of 27; this has become most fuel efficient small pick ups in the market today. The 4 cylinder, 2.3 liter engine and a manual 5 speed transmission offer superior performance having to break the standard. Available in 3 trims, the compact 2WD offers value for money whether you buy the XL, XLT or Sport. Their 2010 version of the model, many take your pick between manual or automatic point.

	~~More generally~~, ~~in any rotating flow~~, the ~~Ekman number is~~ the ~~ratio of viscous forces to [[Coriolis force]]s~~. ~~When~~ the ~~Ekman number~~ is ~~small~~, ~~disturbances are able~~ to ~~propagate~~ before ~~decaying owing to frictional effects~~. The ~~Ekman number describes~~ the ~~order~~ of ~~magnitude~~ for ~~the thickness of an [[Ekman layer]], a [[boundary layer]]~~ in ~~which viscous diffusion~~ is ~~balanced by Coriolis effects, rather than the usual convective [[inertia]]~~.

	~~==Definitions==~~
	It is ~~defined~~ as:

	:<~~math~~>~~\mathrm{Ek}=\frac{\nu}{2D^2\Omega\sin\varphi}~~<~~/math~~>

	~~- where ''D'' is a characteristic (usually vertical) length scale of a phenomenon; ''ν'~~', the ~~kinematic [[eddy viscosity]]; Ω~~, the ~~[[angular velocity]]~~ of ~~[[planet]]ary [[rotation]]; and φ,~~ the ~~[[latitude]]~~. The ~~term 2 Ω sin φ~~ is ~~the~~ [~~[Coriolis effect\|Coriolis frequency]~~].
	It ~~is given in terms of the kinematic viscosity~~, ~~''ν'';~~ the ~~angular velocity~~, ~~Ω; and~~ a ~~characteristic length scale, ''L''~~.

	~~There do appear to be some differing conventions in the literature~~.

	~~Tritton gives:~~

	:<~~math~~>
	~~\mathrm{Ek} = \frac{\nu}{\Omega L^2}.~~
	<~~/math~~>

	~~In contrast~~, ~~the NRL Plasma Formulary<ref>http://www~~.~~ipp~~.~~mpg~~.~~de/~dpc/nrl/23~~.~~html~~<~~/ref~~> ~~gives:~~

	:<~~math~~>
	~~\mathrm{Ek} = \sqrt{\frac{\nu}{~~2~~\Omega L^2}} = \sqrt{\frac{\mathrm{Ro}}{\mathrm{Re}}}~~.
	~~</math>~~

	~~where Ro is~~ the ~~[[Rossby number]] and Re is~~ the ~~[[Reynolds number]]~~.

	~~==References==~~
	~~{{Reflist}}~~

	~~{{NonDimFluMech}}~~

	~~[[Category:Dimensionless numbers~~ of ~~fluid mechanics]]~~
	~~[[Category:Fluid dynamics]]~~
	~~[[Category:Geophysics]]~~

	~~{{fluiddynamics-stub}}~~

en>GliderMaven: rearrange

2013-12-30T15:19:40Z

rearrange

New page

The '''Ekman number''' ('''Ek''') is a [[dimensionless number]] used in describing [[geophysics|geophysical]] phenomena in the [[oceans]] and [[Celestial body atmosphere|atmosphere]]. It characterises the ratio of [[viscosity|viscous]] forces in a [[fluid]] to the [[Coriolis effect|fictitious forces]] arising from [[planet]]ary [[rotation]]. It is named after the [[Sweden|Swedish]] [[oceanographer]] [[Vagn Walfrid Ekman]].

More generally, in any rotating flow, the Ekman number is the ratio of viscous forces to [[Coriolis force]]s. When the Ekman number is small, disturbances are able to propagate before decaying owing to frictional effects. The Ekman number describes the order of magnitude for the thickness of an [[Ekman layer]], a [[boundary layer]] in which viscous diffusion is balanced by Coriolis effects, rather than the usual convective [[inertia]].

==Definitions==
It is defined as:

:<math>\mathrm{Ek}=\frac{\nu}{2D^2\Omega\sin\varphi}</math>

- where ''D'' is a characteristic (usually vertical) length scale of a phenomenon; ''ν'', the kinematic [[eddy viscosity]]; Ω, the [[angular velocity]] of [[planet]]ary [[rotation]]; and φ, the [[latitude]]. The term 2 Ω sin φ is the [[Coriolis effect|Coriolis frequency]].
It is given in terms of the kinematic viscosity, ''ν''; the angular velocity, Ω; and a characteristic length scale, ''L''.

There do appear to be some differing conventions in the literature.

Tritton gives:

:<math>
\mathrm{Ek} = \frac{\nu}{\Omega L^2}.
</math>

In contrast, the NRL Plasma Formulary<ref>http://www.ipp.mpg.de/~dpc/nrl/23.html</ref> gives:

:<math>
\mathrm{Ek} = \sqrt{\frac{\nu}{2\Omega L^2}} = \sqrt{\frac{\mathrm{Ro}}{\mathrm{Re}}}.
</math>

where Ro is the [[Rossby number]] and Re is the [[Reynolds number]].

==References==
{{Reflist}}

{{NonDimFluMech}}

[[Category:Dimensionless numbers of fluid mechanics]]
[[Category:Fluid dynamics]]
[[Category:Geophysics]]

{{fluiddynamics-stub}}