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An article like this would be greatly improved with some pictures, does anyone have any? I'll try and find some but I was thinking something along the lines of:
-Moody chart for a sphere, as the change in friction factor is well explained by boundary layers.
-Smoke blowing past a sphere or aerofoil in a wind tunnel.
-Transition to turbulence, flow over a flat plate perhaps.
-Velocity profiles (and temperature profiles) for flow over a hot plate.
-Flow through a duct showing the effect of adverse pressure gradients on boundary layer separation.
Anyone got any other suggestions?
Andrew.Ainsworth
23:32, 22 May 2007 (UTC)
I just uploaded a simple boundary layer schematic that you might consider. Syguy 18:57, 19 September 2007 (UTC)
I moved most of this section to added mass, since it seems to confuse added mass with boundary layer effects. For instance for a ship of 100 m length and 10 m draft, at 20 m/s, the boundary layer will be of the order of 0.1 m thickness, so a boundary-layer mass of 2x100x10x0.1×103=200×103 kg. Which will be only a tiny fraction of the ship mass. The remarks about mass affected by aircraft are off-topic: not about naval architecture and not about boundary layers, so I removed them. -- Crowsnest ( talk)
Boundary layer is a concept used in all transport phenomena (mass transfer, heat transfer, momentum transfer, etc.), but the page talk almost exclusively of the momentum transfer. Please generalize it, in particular it is important to generalize the incipit. -- Daniele Pugliesi ( talk) 12:15, 28 October 2014 (UTC)
The integrated equations are wrong as they still depend on the integrated variable x — Preceding unsigned comment added by 152.96.212.60 ( talk) 10:07, 11 March 2020 (UTC)
Boundary_layer_thickness does not seem very useful, especially since all the calculation are on this page. Tigraan ( talk) 15:50, 29 January 2015 (UTC)
In case the issue is about the general sense of the term, I've never heard of any other meaning of the word, neither www.oxforddictionaries.com nor www.merriam-webster.com have, apart from the already linked in anatomical feature.
— Preceding unsigned comment added by 84.236.116.111 ( talk) 06:13, 9 March 2015 (UTC)
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![]() | This ![]() It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||
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An article like this would be greatly improved with some pictures, does anyone have any? I'll try and find some but I was thinking something along the lines of:
-Moody chart for a sphere, as the change in friction factor is well explained by boundary layers.
-Smoke blowing past a sphere or aerofoil in a wind tunnel.
-Transition to turbulence, flow over a flat plate perhaps.
-Velocity profiles (and temperature profiles) for flow over a hot plate.
-Flow through a duct showing the effect of adverse pressure gradients on boundary layer separation.
Anyone got any other suggestions?
Andrew.Ainsworth
23:32, 22 May 2007 (UTC)
I just uploaded a simple boundary layer schematic that you might consider. Syguy 18:57, 19 September 2007 (UTC)
I moved most of this section to added mass, since it seems to confuse added mass with boundary layer effects. For instance for a ship of 100 m length and 10 m draft, at 20 m/s, the boundary layer will be of the order of 0.1 m thickness, so a boundary-layer mass of 2x100x10x0.1×103=200×103 kg. Which will be only a tiny fraction of the ship mass. The remarks about mass affected by aircraft are off-topic: not about naval architecture and not about boundary layers, so I removed them. -- Crowsnest ( talk)
Boundary layer is a concept used in all transport phenomena (mass transfer, heat transfer, momentum transfer, etc.), but the page talk almost exclusively of the momentum transfer. Please generalize it, in particular it is important to generalize the incipit. -- Daniele Pugliesi ( talk) 12:15, 28 October 2014 (UTC)
The integrated equations are wrong as they still depend on the integrated variable x — Preceding unsigned comment added by 152.96.212.60 ( talk) 10:07, 11 March 2020 (UTC)
Boundary_layer_thickness does not seem very useful, especially since all the calculation are on this page. Tigraan ( talk) 15:50, 29 January 2015 (UTC)
In case the issue is about the general sense of the term, I've never heard of any other meaning of the word, neither www.oxforddictionaries.com nor www.merriam-webster.com have, apart from the already linked in anatomical feature.
— Preceding unsigned comment added by 84.236.116.111 ( talk) 06:13, 9 March 2015 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Boundary layer. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
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Cheers.— InternetArchiveBot ( Report bug) 16:20, 6 November 2016 (UTC)
Hello fellow Wikipedians,
I have just modified 3 external links on Boundary layer. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
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Cheers.— InternetArchiveBot ( Report bug) 01:59, 24 July 2017 (UTC)