Fire Simulation!

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Fire Simulation (1), CFD

Example 1 is a fire showing the formation of semi-periodic eddies. This animation shows the location of hot spots and the cooler vapor dome overlaying a pool of hydrocarbon fuel.

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Fire Simulation (2), CFD

In example 2 a solid object moves horizontally across the fire, demonstrating the effect of a moving structure in a flow calculation.

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Fire Simulation (3), CFD

The fire in example 3 is a trench fire in a crosswind.  The view is end on showing the flame stretch and tilt due to the mild crosswind.

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Fire Simulation (4), CFD

Example 4 is the first example of a "flame holder".  The fire attaches itself to the side of a flat object and follows the object as it moves through the flame.  Once at the base, the flame completely attaches itself to the object.

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Fire Simulation (5), CFD

Example 5 demonstrates a vortex shedding fire- object interaction.  The fire oscillates about a cylinder due to the vortex shedding phenomenon demonstrated in the Von Karman simulations.

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Fire Simulation (6), CFD

Example 6 shows a rectangular object in an engulfing fire with a crosswind.

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Fire Simulation (7), CFD

Example 7 shows an enclosure fire wherein an oil fire burns within a deep pit.

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Fire Simulation (8), CFD

Example 8 shows a range fire in mountainous terrain with a thermal inversion layer and a light wind.

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Fire Simulation (9), CFD

Example 9 shows a fire in a weapons bunker engulfing an explosive ordinance, when the explosive material reaches a high enough temperature, it ignites suddenly, spreading high explosive combustion products about the room.

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Fire Simulation (10), CFD

Example 10 shows a fire in a shallow trench with no wind.  The view is perpendicular to the trench.  The geometry of the trench is two dimensional yet the fire behavior is three dimensional because of 3-D fluid instabilities.  the flame breaks up into individual flamelets which grow, migrate, coalesce, and disperse.

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Fire Simulation (11), CFD

Example 11 shows the "flame holder" effect again.   The fire is just downwind of a small vertical wall, although the fire is downwind of the wall it is swept to the wall by the wake created in the crosswind.

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