Pro/Forums

Pro/Forums (http://forums.procooling.com/vbb/index.php)
-   General Liquid/Water Cooling Discussion (http://forums.procooling.com/vbb/forumdisplay.php?f=9)
-   -   Best low-resistance CPU block for AMD? (http://forums.procooling.com/vbb/showthread.php?t=10304)

AngryAlpaca 08-18-2004 04:01 PM

I think it is unreasonable. They require restriction to do what they do. Turbulence in any form causes restriction, and turbulence in any form helps cooling. Good waterblocks use lots of turbulence in good places, and thus restrict lots relatively. You're sacrificing the (usual) end for a (usual) means.

BillA 08-18-2004 04:08 PM

yea, but he should mod the SlitEdge,
remove the internal fins so it will flow more

Cathar 08-18-2004 04:36 PM

Quote:

Originally Posted by unregistered
its always refreshing to hear that wb designers have missed the obvious
perhaps Cathar's new wb ?

Hmmm - at ~1.5PSI @ 1gpm, the new block is obviously far from being desirable.

Karantanec 08-18-2004 04:47 PM

Is there a picture how the BeCooling SlitEdge looks from inside?

Cathar 08-18-2004 04:50 PM

Quote:

Originally Posted by Karantanec
Is there a picture how the BeCooling SlitEdge looks from inside?

http://thermal-management-testing.com/slitedge.htm

http://www.aquastealth.com/index.asp...ProdID=11&HS=1

http://www.nokytech.net/dossier.php?lire=97&page=1

http://www.nokytech.net/images/dossiers/slitedge/26.jpg

jaydee 08-18-2004 04:53 PM

1 Attachment(s)
Pic of slit edge.
EDIT: Bah, Cathar on the ball today! :D

jaydee 08-18-2004 04:55 PM

I just realized how easy that could be made into a Lumpy Channel style block! :D

Karantanec 08-18-2004 05:18 PM

Thanks for the photos.

Anyway, I understand the need of turbulence and surface for an efficient heat transfer.
But why cant the block be designed to cause turbulence without narrowing the total intersection surface that the water has to overcome at any given time.

An 1/2" ID tube has an intersection of 127 mm^2
My system uses this intersection surface in every place ( fittings ID, tubing ID, pump ID ), even the radiator allows the water to find its way through so there is always the minimum of 127 mm^2 the water has to overcome at any time...

SO, ideally, the w-block too would have a total inner intersection surface of at least 127 mm^2.
The point? Thats my idea of an unrestricted flow path.





Perhaps I am crazy

nikhsub1 08-18-2004 05:25 PM

Quote:

Originally Posted by Karantanec
Perhaps I am crazy

I think you should explore that last thought some more :D If I understand you correctly, you are more interested in how much flow you get than you are in performance? The best blocks ATM are restrictive, for good reason, they perform better. Why? Because the point of restriction creates velocity over the die area. Your analogy to me is like someone going to a car dealer and saying, "I want a car with 500 HP, I don't care how fast it is but it MUST have 500 HP." The dealer shows you a car with 300 HP that smokes the car with 500 HP. You insist, "I must have a car with 500 HP." But sir...

snowwie 08-18-2004 05:56 PM

why not ask for the best performing setup with the lowest noise level as well?

greenman100 08-18-2004 06:02 PM

Quote:

Originally Posted by Karantanec
An 1/2" ID tube has an intersection of 127 mm^2
My system uses this intersection surface in every place ( fittings ID, tubing ID, pump ID ), even the radiator allows the water to find its way through so there is always the minimum of 127 mm^2 the water has to overcome at any time...

SO, ideally, the w-block too would have a total inner intersection surface of at least 127 mm^2.
The point? Thats my idea of an unrestricted flow path.

a bit to learn about fluid dynamics, you do have.

Quote:

Originally Posted by Karantanec
Perhaps I am crazy

nope, just a little mixed up ;)

greenman100 08-18-2004 06:04 PM

Quote:

Originally Posted by nikhsub1
Your analogy to me is like someone going to a car dealer and saying, "I want a car with 500 HP, I don't care how fast it is but it MUST have 500 HP." The dealer shows you a car with 300 HP that smokes the car with 500 HP. You insist, "I must have a car with 500 HP." But sir...

more like the car dealer showing you over to the freight train next door

Cathar 08-18-2004 06:20 PM

Quote:

Originally Posted by Karantanec
Anyway, I understand the need of turbulence and surface for an efficient heat transfer.
But why cant the block be designed to cause turbulence without narrowing the total intersection surface that the water has to overcome at any given time.

An 1/2" ID tube has an intersection of 127 mm^2
My system uses this intersection surface in every place ( fittings ID, tubing ID, pump ID ), even the radiator allows the water to find its way through so there is always the minimum of 127 mm^2 the water has to overcome at any time...

SO, ideally, the w-block too would have a total inner intersection surface of at least 127 mm^2.
The point? Thats my idea of an unrestricted flow path.

http://web.mit.edu/lienhard/www/ahttv122.pdf <- Read it

greenman100 08-18-2004 06:33 PM

762 pages?

better grab a snickers

you international folk, there's a slogan for the snickers candy bar: "not going anywhere for a while? GRAB A SNICKERS"

Althornin 08-18-2004 11:09 PM

Quote:

Originally Posted by Karantanec
Thanks for the photos.

Anyway, I understand the need of turbulence and surface for an efficient heat transfer.
But why cant the block be designed to cause turbulence without narrowing the total intersection surface that the water has to overcome at any given time.

An 1/2" ID tube has an intersection of 127 mm^2
My system uses this intersection surface in every place ( fittings ID, tubing ID, pump ID ), even the radiator allows the water to find its way through so there is always the minimum of 127 mm^2 the water has to overcome at any time...

SO, ideally, the w-block too would have a total inner intersection surface of at least 127 mm^2.
The point? Thats my idea of an unrestricted flow path.





Perhaps I am crazy

Um, what?
Do you really think that total cross-sectional area has everything to do with flow?
DO you think that one opening of 127mm^2 will flow the same as 100 tiny pipes, each with a 1.27mm^2 opening? Or 1000 even tinier pipes of .127mm^2 sized openings?
Think about it.

Karantanec 08-19-2004 07:57 AM

Quote:

Originally Posted by Althornin
Um, what?
Do you really think that total cross-sectional area has everything to do with flow?
DO you think that one opening of 127mm^2 will flow the same as 100 tiny pipes, each with a 1.27mm^2 opening? Or 1000 even tinier pipes of .127mm^2 sized openings?
Think about it.


It's hard to describe what I want in my own language, let alone in another...

Of course a lot of tiny pipes restrict flow alot more then one big pipe. But thats another kind of flow restriction and is in my thought less restrictive, then pushing water through some tiny-winy holes with, lets say, 90% less cross-section area to create the jet effect...
90% less cross-section area for water to go through against, lets assume, 15% less area.
There's bound to be a difference.

Althornin 08-22-2004 01:58 PM

Quote:

Originally Posted by Karantanec
is in my thought less restrictive

there is your problem.
go with facts, not your (baseless??) thoughts.

nikhsub1 08-22-2004 03:21 PM

Quote:

Originally Posted by Althornin
there is your problem.
go with facts, not your baseless thoughts.

I think we've all (I know I have) given up on this guy...

Althornin 08-22-2004 04:08 PM

Quote:

Originally Posted by nikhsub1
I think we've all (I know I have) given up on this guy...

I'll make one last effort:
I just don't understand the facination with "flow"...
who cares?
If a block flows half what another block does, with the same pump, yet keeps the processor 2 degrees cooler, which one is preferable????

BillA 08-22-2004 04:15 PM

medium flow ?

Karantanec 08-24-2004 03:41 PM

I guess I am a hopeless case :p

To counter that thought:

Quote
If a block flows half what another block does, with the same pump, yet keeps the processor 2 degrees cooler, which one is preferable????

If its just 2 degrees weaker then the high performance block, I'll take the block with half the restriction right away ;)

BillA 08-24-2004 04:11 PM

to what point ?
how is lower performance better ?

ah yes, because it flows more
is this a water fountain ?

Cathar 08-24-2004 04:16 PM

Exactly. Just what is it that is hoped to be gained by having a lower restriction weaker performing block?

What is the need for this low restriction? It has to be something other than performance based. Are we watering the garden or something?

rundymc 08-25-2004 09:05 PM

Quote:

Originally Posted by Karantanec
I guess I am a hopeless case :p

To counter that thought:

Quote
If a block flows half what another block does, with the same pump, yet keeps the processor 2 degrees cooler, which one is preferable????

If its just 2 degrees weaker then the high performance block, I'll take the block with half the restriction right away ;)

I don't get it- why would you take the lower performing block?
it doesn't make sense, its just flow
or are you talking about boasting rights

Karantanec 08-26-2004 12:00 PM

Quote:

Originally Posted by rundymc
I don't get it- why would you take the lower performing block?
it doesn't make sense, its just flow
or are you talking about boasting rights

Boasting rights?
:p

There isnt really a scientific reason for such a design. But wouldnt such blocks allow efficient cooling with smaller pumps, leaving more "head" for longer cooling routes with more waterblocks and without stressing the system?


All times are GMT -5. The time now is 05:46 AM.

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
(C) 2005 ProCooling.com
If we in some way offend you, insult you or your people, screw your mom, beat up your dad, or poop on your porch... we're sorry... we were probably really drunk...
Oh and dont steal our content bitches! Don't give us a reason to pee in your open car window this summer...