Caption: Thermographic footage of the surface of hot oil as it cools down. The thermal camera shows the temperature of the oil surface, with hotter areas brighter than cooler ones. Hot, less dense oil rises to the surface, where it cools, spreads out and sinks, forming convection cells. This is called Rayleigh-Bénard convection, and it occurs where a fluid is heated from below. A similar pattern is seen on the surface of the Sun, where hot plasma rises, cools and sinks to produce a pattern known as granulation.

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Keywords: benard cells, cell, cells, cooling, demonstration, dynamics, education, educational, false-coloured, fluid, fluids, from above, granulation, heat, heat transfer, hot, infrared, ir, oil, orange, pattern, physical, physics, rayleigh-benard convection, science, solar, sun, surface, thermal, thermodynamics, thermogram, thermographic, thermography

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Cooling oil convection cells, thermography

K006/9934 Rights Managed

Downloadable master

Duration: 00:00:05.09

Frame size: 1280x720

Frame rate: 30

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 50.5M


Capture format: Thermographic

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.


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