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| + | <metadesc>Thermography of a cyclonic water cooling</metadesc> | ||
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| + | Version française: [[Vue thermographique du faïençage de l'eau]] | ||
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== Thermogram of the cooling of a water's pellicule == | == Thermogram of the cooling of a water's pellicule == | ||
[[File:water_cooling.jpg|500px]]<br> | [[File:water_cooling.jpg|500px]]<br> | ||
| − | + | ===Description=== | |
| − | + | ||
| − | + | ||
This was experiment about thermographic view of brownian motion. In order to improve quality of image, I imagined to pour the boiling water on a cold water couch. | This was experiment about thermographic view of brownian motion. In order to improve quality of image, I imagined to pour the boiling water on a cold water couch. | ||
What happen was surprising, I blocked the vertical brownian motion because pellicule was too thin and finally create a cyclonic cooling system thanks to the atmosphere. | What happen was surprising, I blocked the vertical brownian motion because pellicule was too thin and finally create a cyclonic cooling system thanks to the atmosphere. | ||
A cyclon in a board to finally crackle and become back a normal brownian motion until equilibar and back to time 0. | A cyclon in a board to finally crackle and become back a normal brownian motion until equilibar and back to time 0. | ||
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| + | The point here is that pellicule of water is unable to have vertical convection but is hotter than air and below water. As so hotter than density disallow both water zone to mix together, then this exchange only with conductivity to the below and with convection with the above. | ||
| + | So long the temperature difference is enough high, a cyclonic activity can be observed with a thermal camera. | ||
| + | |||
| + | Other effects: | ||
| + | * No Coriolis force involved, experiment shows that this is the slightest side effect of the drop who generate a possible turning | ||
| + | * Mirror effect from beneath the hot pellicule who emphasize reflection and optimize friction between both water's medium. | ||
Complete article in french: [[Vue thermographique du faïençage de l'eau]] | Complete article in french: [[Vue thermographique du faïençage de l'eau]] | ||
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| + | A case were drop was perfectly straight | ||
| + | [[Fichier:Thermographie_eau_double_cyclone.jpg|320px|double effect of water cooling in thermal view]] | ||
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| + | ===Experiment's data=== | ||
| + | |||
| + | A classical water board without plate : 21 -12 cm diameter, 3 cm high | ||
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| + | 200ml of cold water + 110 ml nearby boiling water | ||
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| + | This means around 1 cm deep for cold water and 0.3 cm for hot water. | ||
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| + | No difference observed between tap water and pure water. | ||
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| + | [[Fichier:Eau thermographie animee.gif|animated gif of an experiment where water is cooling under a thermographic camera]] | ||
| + | |||
| + | ===In video=== | ||
| + | |||
| + | Vision one version [[:catégorie:fer|iron]]: [http://youtu.be/0XAQtd8XYo0 YouTube 1] | ||
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| + | Vision two version [[:catégorie:arc-en-ciel|rainbow]]: [http://youtu.be/SX9JBbksGQU YouTube 2] | ||
| + | |||
| + | ===Gallery=== | ||
| + | <gallery> | ||
| + | Water-infrated-thermography-cooling-TESTO-890.jpg|Starting point of a water cooling seen with a thermal camera. | ||
| + | Water-thermography-cooling-brownian.jpg|Thermographic image of a water cooling Brownian motion with a depth below convection's limit. | ||
| + | Water-verkouding-thermografie-TESTO-890.jpg|Thermogaphy of Brownian motion in a water depth under convection's level. | ||
| + | </gallery> | ||
| + | |||
| + | Version française: [[Vue thermographique du faïençage de l'eau]] | ||
| + | |||
| + | Hugues CREPIN | ||
[[Catégorie:library]] | [[Catégorie:library]] | ||
Version actuelle en date du 10 juin 2016 à 22:19
Version française: Vue thermographique du faïençage de l'eau
Sommaire |
[modifier] Thermogram of the cooling of a water's pellicule
[modifier] Description
This was experiment about thermographic view of brownian motion. In order to improve quality of image, I imagined to pour the boiling water on a cold water couch. What happen was surprising, I blocked the vertical brownian motion because pellicule was too thin and finally create a cyclonic cooling system thanks to the atmosphere. A cyclon in a board to finally crackle and become back a normal brownian motion until equilibar and back to time 0.
The point here is that pellicule of water is unable to have vertical convection but is hotter than air and below water. As so hotter than density disallow both water zone to mix together, then this exchange only with conductivity to the below and with convection with the above. So long the temperature difference is enough high, a cyclonic activity can be observed with a thermal camera.
Other effects:
- No Coriolis force involved, experiment shows that this is the slightest side effect of the drop who generate a possible turning
- Mirror effect from beneath the hot pellicule who emphasize reflection and optimize friction between both water's medium.
Complete article in french: Vue thermographique du faïençage de l'eau
A case were drop was perfectly straight
[modifier] Experiment's data
A classical water board without plate : 21 -12 cm diameter, 3 cm high
200ml of cold water + 110 ml nearby boiling water
This means around 1 cm deep for cold water and 0.3 cm for hot water.
No difference observed between tap water and pure water.
[modifier] In video
Vision one version iron: YouTube 1
Vision two version rainbow: YouTube 2
[modifier] Gallery
Starting point of a water cooling seen with a thermal camera.
Thermographic image of a water cooling Brownian motion with a depth below convection's limit.
Thermogaphy of Brownian motion in a water depth under convection's level.
Version française: Vue thermographique du faïençage de l'eau
Hugues CREPIN