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View Full Version : 200 geos to solve my engineering question



speedfreak227
11-23-2005, 07:34 PM
i know that fluid resistance varies with the square of speed. (to go twice as fast requires 4 times the power, 3 times as fast requires 9 times the power)

but i'm looking for a corolation between air and water resistance. i know that besides the fact that water fills a vessel to a level and air fills a vessel to an even pressure, there's virtually no differene in their behaviours. water is esentially VERY thick air.

can anyone find a relationship between the power required to travel a certain speed through air vs the power required to travel the same speed through water?

i'm looking for a website that i can reference for a report, thanx.
i'll pay out to the first user that posts a link that i end up using in my report.
payment to be made before or after reset, your choice

speedfreak227

Timmetie
11-23-2005, 07:58 PM
this is not doable by only taking the pressure into account? for thats essentially the only difference between the 2?

nah ignore me, im probably babling away :)

MIMIK
11-23-2005, 08:44 PM
The relation is approximately the density ratio (air density/water density).


i know that fluid resistance varies with the square of speed. (to go twice as fast requires 4 times the power, 3 times as fast requires 9 times the power)

but i'm looking for a corolation between air and water resistance. i know that besides the fact that water fills a vessel to a level and air fills a vessel to an even pressure, there's virtually no differene in their behaviours. water is esentially VERY thick air.

can anyone find a relationship between the power required to travel a certain speed through air vs the power required to travel the same speed through water?

i'm looking for a website that i can reference for a report, thanx.
i'll pay out to the first user that posts a link that i end up using in my report.
payment to be made before or after reset, your choice

speedfreak227

speedfreak227
11-23-2005, 10:15 PM
The relation is approximately the density ratio (air density/water density).

the trouble is i can't quote "mimik, google earth war forums, nov 23, 2005"

i need an actual web site to site in my references.

speedfreak227

Ozzy.prv
11-24-2005, 01:17 AM
Speed, look into drag coeficients.

http://scienceworld.wolfram.com/physics/DragCoefficient.html

Oz.

speedfreak227
11-24-2005, 06:15 AM
ok ozzy that was basically what i needed, but the strange thing now is.......

.......i can't remember why and how i wanted to put it into my report. HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA

at the time it seemed like a good idea but now...... :whoa:

good thing i'm working on this paper ahead of time.

speedfreak227

araT
11-24-2005, 06:19 AM
Re-read your original post, it may jog your memory as to why you needed it ;)

then again, mayne not :spin: what drugs were you on that day? :lol:

T.

Timmetie
11-24-2005, 07:13 AM
dont quote MIMIK, quote me. i'm sure they all remember me and my work.

speedfreak227
11-24-2005, 07:23 AM
Re-read your original post, it may jog your memory as to why you needed it ;)

then again, mayne not :spin: what drugs were you on that day? :lol:

T.

well, what it boils down to is this:

dolphins shouldn't be able to swim as fast as they do. they have a "magic" skin texture that allows them to do so.

top THAT!

speedfreak227

blitzkrieg
11-24-2005, 07:30 AM
Hmmm perhaps not the most complete body of work around. Timmetie circa 2005. Known for spurts of self stated "brilliance"

for instance;

http://www.googleearthhacks.com/forums/showthread.php?t=3813

Also for well educated responces to current affairs issues

for example;

http://www.googleearthhacks.com/forums/showthread.php?p=18424#post18424

And for enriching the lives of others

as in;

http://www.googleearthhacks.com/forums/showthread.php?p=17981#post17981

Could he be gay (not that there's anything wrong with that)

Queer eye for the straight guy?;

http://www.googleearthhacks.com/forums/showthread.php?p=17944#post17944

Nuff said...... for now ;)

Timmetie
11-24-2005, 12:03 PM
he wow :shock: !!, i should indeed publish this stuff.

The world cant miss out on this.