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Large Eddy Simulation (LES) of Tunnel Pool Fire and calculation Infra Red absorption

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Old   April 29, 2020, 22:25
Lightbulb Large Eddy Simulation (LES) of Tunnel Pool Fire and calculation Infra Red absorption
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Large Eddy Simulation (LES) of Tunnel Pool Fire and calculation Infra Red absorption Coefficients of Soot Particles (on All About CFD blog)

In this work a new algorithm has been developed in order to calculate the soot particles infra red absorption coefficient during Heptane pool tunnel fire. It is based on the Fire Dynamics Simulator (FDS) results.
In the FDS model, the combustion is represented by means of the mixture fraction with a single step chemical reaction model. Large Eddy Simulation (LES) is used to model the dissipative processes.
CFD results show that the soot absorption coefficient is strongly influenced by the concentration and the temperature fields. It was found out that soot particle tends to concentrate near the tunnel ceiling. This phenomenon occurs due to thermal buoyancy forces. The thermal gradient causes the flow to flow towards the ceiling.
This proposed algorithm can be implemented in smoke detection systems and in fire simulation codes.

Simulation:
https://lnkd.in/dPuEPH4

Post:
https://lnkd.in/gGQ6NKJ

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Old   May 4, 2020, 11:42
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Have anyone tutorial of LES ????
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Old   May 4, 2020, 14:00
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Quote:
Originally Posted by Mutlaq View Post
Have anyone tutorial of LES ????
Here you go:
https://drive.google.com/file/d/1PKC...w?usp=drivesdk

You may get much more resources at All About CFD... blog https://allaboutcfd-tomersblog.com/2...out-cfd-index/
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