Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
ABS carbon barrel heat dissipation......
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Guest" data-source="post: 115797"><p>[ QUOTE ]</p><p> <strong> Research scientist are people just like anybody else and their results are often influenced by who funded the research and follow up promises of additional funding. </strong></p><p></p><p>[/ QUOTE ]</p><p></p><p>You might want to reconsider that outrageously condemning myth. A researcher is only as good as her work and credibility. Having participated in funded research for the last two decades I can tell you I've never read a paper or met an investigator who skewed results for short term funding. I suppose when the VP is calling the best research junk (then admitting he was wrong a few years latter) it's easy for the public to believe that myth.</p><p></p><p>Other than the disparaging comment, your post was stellar.</p><p></p><p>[ QUOTE ]</p><p> <strong> Desert Fox: ...The rapid cooling I believed can be attributed to the barrel being thin and therefore has less mass... </strong></p><p></p><p>[/ QUOTE ]</p><p>For a homogeneous/isotropic material (gun barrel steel, carbon fiber is not isotropic) you have the correlation exactly opposite. For a given conductive material, heat transfer is increased with mass and surface area. A thinner barrel cooling faster must be MUCH more conductive.</p><p></p><p>Roy in ID. </p><p>Temp can be calculated on a pipe via solving the product form of the wave equation. See any elementary book on numerical solution of partial differential equations.</p><p></p><p> <img src="http://www.omega.com/Temperature/images/5TC_l.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />I plan on using 5 of omega's Thermocouples connected to my A/D (going to my laptop). At the same time I'll have an RSI strain gauge recording pressure. I was hoping to correlate the timestamps, pressure, temp change and get good reading for the barrel surface. I think buffalobob is right, what counts is the temp inside the barrel. To solve the heat equation for every position on the pipe you need the boundary conditions (ie, the temp in the throat)</p></blockquote><p></p>
[QUOTE="Guest, post: 115797"] [ QUOTE ] [b] Research scientist are people just like anybody else and their results are often influenced by who funded the research and follow up promises of additional funding. [/b] [/ QUOTE ] You might want to reconsider that outrageously condemning myth. A researcher is only as good as her work and credibility. Having participated in funded research for the last two decades I can tell you I've never read a paper or met an investigator who skewed results for short term funding. I suppose when the VP is calling the best research junk (then admitting he was wrong a few years latter) it's easy for the public to believe that myth. Other than the disparaging comment, your post was stellar. [ QUOTE ] [b] Desert Fox: ...The rapid cooling I believed can be attributed to the barrel being thin and therefore has less mass... [/b] [/ QUOTE ] For a homogeneous/isotropic material (gun barrel steel, carbon fiber is not isotropic) you have the correlation exactly opposite. For a given conductive material, heat transfer is increased with mass and surface area. A thinner barrel cooling faster must be MUCH more conductive. Roy in ID. Temp can be calculated on a pipe via solving the product form of the wave equation. See any elementary book on numerical solution of partial differential equations. [img]http://www.omega.com/Temperature/images/5TC_l.jpg[/img]I plan on using 5 of omega's Thermocouples connected to my A/D (going to my laptop). At the same time I'll have an RSI strain gauge recording pressure. I was hoping to correlate the timestamps, pressure, temp change and get good reading for the barrel surface. I think buffalobob is right, what counts is the temp inside the barrel. To solve the heat equation for every position on the pipe you need the boundary conditions (ie, the temp in the throat) [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
ABS carbon barrel heat dissipation......
Top