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From: email@example.com (Glen Walpert)
Subject: Re: Thermal Resistance/Forced Convection
X-Newsreader: News Xpress 2.01
Date: Thu, 12 Dec 2002 13:10:16 GMT
NNTP-Posting-Date: Thu, 12 Dec 2002 08:10:16 EST
Organization: Net Access (netaxs.com)
In article <firstname.lastname@example.org>, email@example.com (Bill Sloman) wrote:
>John Woodgate wrote in message
>> I read in sci.electronics.design that Tobias Maier wrote
>> (in ) about 'Thermal
>> Resistance/Forced Convection', on Wed, 11 Dec 2002:
>> >How can I verify, that the thermal resistance of a heat sink is
>> >dependent of the airflow velocity????????????????
>> >I`ve measured the temperatur off a switch without cooling with an
>> >with an airflow velocity of 2,5m/s i've measured only 60K:
>> >that means that the thermal resistance is reduced. How can i verify
>> >this with physical formulas?
>> You should ask on a physics newsgroup. Most electronic engineers don't
>> know the basic physics of forced cooling.
>Neither do most physicists. I'd have higher hopes of an an aerodynamics
sci.engr.mech might theoretically be a better place to ask heat transfer
questions, but as far as I can see not too many real experts read that group.
I think most mechanical engineers find the group too boring to bother with -
at least I do (yes, I am a mechanical engineer).
Probably the best bet is to read a book on the subject; I could recommend some
english language books but the OP would probably be better off finding one
written in German.
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