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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997
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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997 |
05-15-14, 02:43 PM
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#9 | |
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Gefallen Engel U-666
 Join Date: Jul 2013
Location: On a tilted, overheated, overpopulated spinning mudball on Collision course with Andromeda Galaxy
Posts: 30,049
Downloads: 24
Uploads: 0
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Quote:
An average surface fire on the forest floor might have flames reaching 1 metre in height and can reach temperatures of 800°C (1,472°F) or more. Under extreme conditions a fire can give off 10,000 kilowatts or more per metre of fire front. This would mean flame heights of 50 metres or more and flame temperatures exceeding 1200°C (2,192°F).The flash point, or the temperature at which wood will burst into flame, is 572°F, A pyroclastic flow (also known scientifically as a pyroclastic density current) is a fast-moving current of hot and rock (collectively known as Tephra), which reaches speeds moving away from a volcano of up to 700 km/h (450 mph). The gas can reach temperatures of about 1,000 °C (1,830 °F). Pyroclastic flows normally hug the ground and travel downhill, or spread laterally under gravity. Those reaching the river or sea and flowing below the surface are lahars. Their speed depends upon the density of the current, the volcanic output rate, and the gradient of the slope. They are a common and devastating result of certain explosive volcanic eruptions. Whether a 'tephra in my toga' circa 79 AD-Vesuvius-due again (last blew in 1944) or a Lahar in my neoprene dive-suit off Hawaii's Kilauea volcano-due anytime! I fear my gandu is "frickaseed' either way 
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