Talk:Convection (heat transfer)

message: :I agree with the comment below.  It would be nice to have some formulas for estimating convective heat transfer. Drswenson (talk) 15:24, 15 January 2009 (UTC)
thread_title:  Equation variables 

message: Would anyone object to a small addition mentioning simple estimations of beta? I'll add it tomorrow if not. Chng3802B (talk) 05:06, 19 March 2008 (UTC)
thread_title:  Beta 

message: The opener didn't quite get the meaning or process of convection across to me (the "what it is").  I see that the article convection defines it more clearly so I'll add a little (see convection after the first definition).  Seems that this page deals with more complex equations involved in the process than the other page.  Maybe this page should be split in three?  (don't know the wikipedia guidline for this case)... 1 page refering to Convective heat transfer as the adj:  "of or partaining to convective heat" or something, and 1 page for each of the two types of convective heat types (although I can see the benafit of keeping the two mathmatical properties on the same page, but seperate from the other).  I'm no expert on the subject so maybe I'm way off base here.Xetxo (talk) 19:36, 16 December 2008 (UTC)
replies: text: Maybe it would be apropriate to name the page Convection (maths) to destiguish the pages purpose (if I even have the purpose right).Xetxo (talk) 19:39, 16 December 2008 (UTC)
thread_title:  Opening paragraph 

message: I think many of your readers would be interested in knowing more about the role that the Prandtl_number and Nusselt_number play in convective heat transfer.  The present article does not even mention these and maybe it would be better if it did? StressTensor (talk) 18:59, 18 April 2011 (UTC)
replies: text: It certainly would be better, and please do. The Prandtl and Nusselt numbers are the major reason why the effective heat transfer coefficient h in convective heat transfer is NOT linearly dependent on temperature. This article actually implies the opposite, by analyzing a case of convective cooling which has a Newton's law behavior (transfer proportional = linearly dependent on T gradient). Of course that is ONLY is seen when h is independent of delta-T. I'll fix it with a caveat and qualification that this is the case only across short temperature-intervals in convection (or in the steady state where delta-T is constant), but otherwise (particularly for many configurations in free convection) is not generally the case.SBHarris 19:20, 18 April 2011 (UTC)
thread_title:  Prandtl number? 

message: Stated in [], there appear the names "heat reservoir" and "heat content".
Being heat, by definition, transient energy, I think that this phrasing is misleading. Don't you agree?
:It's easy enough to change all the "heat content" stuff to "thermal energy content" to avoid that. The newest definitions all demand that heat be used only to refer to transient energy flow across boundaries, but it wasn't always that way, you know. Once upon a time, objects had "heat content" rather than thermal energy content. As still implied by the idea that they have "heat capacity." Which once upon a time actually was meant to imply that the heat was (in some sense) still IN them, even after it had been absorbed and used to heat them. NOW we're politically correct and say that once the heat is in, it must be called "thermal energy." Politics. SBHarris 16:51, 11 May 2011 (UTC)
thread_title:  Aren't they misnomers, Heat reservoir and heat content? 

message: It seems to me that the Newtonian section here assumes that the convective transfer is close to 0, and is therefore not a representation of convective transfer (and more closely related to conductive transfer). Am I misinterpreting this in any way? Techhead7890 (talk) 03:52, 9 February 2014 (UTC)
replies: text: Later experiments to correct this law were conducted in a vacuum, so I suspect you're onto something, but I'm not going to bruise my high-school physics trying to puzzle this out. — MaxEnt 10:50, 10 April 2014 (UTC)
thread_title:  Newtonian section a misnomer 

message: I would certainly support this becoming a separate page if an editor came along with decent reference works concerning the historical context of Newton's investigations.  I didn't find a lot in a quick search.  I did find one PPT which claimed that Newton used a modern-style thin tube thermometer filled with linseed oil, marked in a "Celsius" scale (perhaps centigrade would be the more correct term).  It also pointed out that Newton's law is correct even though his own experiment disagreed, due to experimental effects such as convection within the thermometer itself.  It wasn't up to cite-worthy standards, though.  It seems Newton himself only regarded his law as valid for temperature differences up to 10 degrees C.— MaxEnt 10:48, 10 April 2014 (UTC)
replies: text: Newton's law of cooling happens in many circumstances, some convective, some conductive. It deserves its own article as a mechanistic phenomenon, even absent a history section, and it used to have one. Then some lumper-editor person stuck it here. I'll give everybody a few days to comment, and then assume that silence implies consent, start a Newton's Law of Cooling article, then spin this section off per WP:SS, leaving a small summary section behind. That needs be done also, referencing this "law" in several other heat transfer articles. SBHarris 19:56, 8 June 2015 (UTC)
thread_title:  Newton's law of cooling 

message: :The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion. 
The result of the move request was: Move to Convection (heat transfer)  Best Wishes, Lee Vilenski (talk • contribs) 11:37, 12 April 2021 (UTC)
replies: text: Convective heat transfer →  – To help eliminate confusion between the different physical phenomena which are described by the same name in different contexts. 60.242.168.210 (talk) 11:57, 5 April 2021 (UTC)

text: This is a contested technical request (permalink). OCouch (talk) 11:54, 7 April 2021 (UTC)
thread_title:  Requested move 7 April 2021 

message: Convetion 69.160.112.122 (talk) 23:37, 25 January 2023 (UTC)
thread_title:  Heat tranfer