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What is Your Favorite Dimensionless Group? (POLL)
Vote for Your Favorite Dimensionless Group!
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05-24-2010, 07:42 PM
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Model Citizen
Join Date: May 2007
Location: The Voodoo Lounge
Posts: 18,823
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I'm fond of the solar system.
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"I would be a tone-deaf heathen if I didn't call the engine astounding. If it had been invented solely to make noise, there would be shrines to it in Rome" |
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05-24-2010, 07:47 PM
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AutoBahned
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thing cut off my title - there can only be ONE WINNER!
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05-24-2010, 07:50 PM
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Registered
Join Date: Apr 2006
Posts: 5,179
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%#*&$#! I chose reynolds (because I worked as an aerodynamicist for an open wheel formula racing team for quite some time...)
but then I saw nusselt number.... I love me some heat transfer!
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M |
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05-24-2010, 08:27 PM
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Registered
Join Date: Apr 2006
Posts: 5,179
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And you forgot Eckert Number... named after a relative of mine.
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M |
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05-24-2010, 08:28 PM
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Registered
Join Date: Apr 2008
Location: Houston TX
Posts: 8,702
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Sorry, but your favorites SUCK.
Fine Structure Constant. Not only dimensionless, but the integral link between all of the physical constants of the local Universe.
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Mike Bradshaw 1980 911SC sunroof coupe, silver/black Putting the sick back into sycophant! |
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05-24-2010, 08:32 PM
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AutoBahned
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yeh Mike - mine tend to be clustered around heat transfer and fluid flow
sorry 'bout yer unerverse, bud |
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05-24-2010, 08:59 PM
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Bandwidth AbUser
Join Date: Nov 2001
Location: SoCal
Posts: 29,522
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The local universe is so limited, Mike. Think big, man!
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Jim R. |
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05-25-2010, 02:06 AM
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Dog-faced pony soldier
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I don't see R value or U value listed...
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A car, a 911, a motorbike and a few surfboards Black Cars Matter |
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05-25-2010, 02:27 AM
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canna change law physics
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Yep, I was an Aero...And I do more with gas flows than anything else, these days.
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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05-25-2010, 03:42 AM
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Dog-faced pony soldier
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Quote:
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A car, a 911, a motorbike and a few surfboards Black Cars Matter |
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05-25-2010, 03:45 AM
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canna change law physics
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Fajitas and local micro-brewed beer!
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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05-25-2010, 03:53 AM
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Registered
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My cat's breath smells like cat food
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1979 911 SC Silver 2002 996 race car 2005 Ford Excursion |
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05-25-2010, 05:16 AM
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Registered
Join Date: Apr 2008
Location: Houston TX
Posts: 8,702
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"local universe" was a safety measure, since Sniper would come in and claim I was saying stuff that wasn't 100% fully completely absolutely proven everywhere for all time.
It seems that thermo has too many simple equations if they have that many dimensionless numbers flopping around... 
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Mike Bradshaw 1980 911SC sunroof coupe, silver/black Putting the sick back into sycophant! |
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05-25-2010, 08:32 AM
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Registered
Join Date: Jun 2002
Location: PNW
Posts: 2,753
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I'm partial to Reynolds, and Pi gets a lot of press but I'm going off the chart and saying the Poisson ratio or perhaps Drag coefficient.
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gary |
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05-25-2010, 08:40 AM
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canna change law physics
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Quote:
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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05-25-2010, 09:04 AM
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B58/732
Join Date: Feb 2000
Location: Hot as Hell, AZ
Posts: 12,313
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Overheard in the MechE lab:
Cute Co-ed #1: Hey, how's the homework going? Cute Co-ed #2: It sucks! I'm up to my butt in Fluids.
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ΜΟΛΩΝ ΛΑΒΕ I don't always talk to vegetarians--but when I do, it's with a mouthful of bacon. |
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05-25-2010, 09:10 AM
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Registered
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Crap....I used to be an engineer (or so I thought), and I haven't even "heard" of most of these, let alone, know what they are?
Great fodder for a quiz night somewhere.... I'll stick with Pi.....something I can wrap my arms around.....arrrr, arrrr.
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"Are you out of your Vulcan mind?" Doug 2022 Carrera 4S, 1989 Delta Integrale, 1973 911T CIS |
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05-25-2010, 10:55 AM
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Make Bruins Great Again
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PPOT and PARF. Both include folks that defy logic and know no bounds for stupidity.
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-------------------------------------- Joe See Porsche run. Run, Porsche, Run: `87 911 Carrera |
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05-25-2010, 11:20 AM
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AutoBahned
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Quote:
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05-25-2010, 11:20 AM
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1970/1982 Porsche 914-6/911SC 2.7 RS
2015 
Kermee
Max
