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bernard&miranda April 12, 2013 10:06

fire in a tunnel simulation

We are working on a simulation of a fire in the middle of a tunnel with some exhauster fans in the ceiling.

At the moment, our model works fine in the horizontal position, but when we try to decompose the gravity in 2 directions, the results aren't logical: the sense of the flux in the fans changes over the time, and in some areas there is a excecive velocity.:eek:

We would appreciate if someone explains us why our flux in the fans changes its direction, even after we require a presure gauge.:(

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