Papers by Didier Bessette
AIAA SCITECH 2023 Forum, 23-27 January 2023, National Harbor, MD and Online, 2023
As hydrogen is gaining popularity as an alternative source of energy, there is a strong focus on ... more As hydrogen is gaining popularity as an alternative source of energy, there is a strong focus on understanding the hazards related to its storage and transport. Nowadays there are two means of transporting and storing hydrogen: in liquid state, or in gaseous state at a very high pressure. For the latter, the hydrogen is often stored in highly pressurized tanks, which could be subject to accidental damages and subsequent leakages. As hydrogen is highly flammable, the auto-ignition of leaked hydrogen may further cause a potentially serious safety hazard. The current work focuses on numerically predicting the auto-ignition patterns of suddenly released hydrogen from a pressurized tank into the atmosphere. The latest density-based CFD solver is utilized to simulate the 3D turbulent structures during the mixing of the fast-propagating hydrogen with the ambient air, using Large Eddy Simulation for turbulence and Finite Rate Chemistry for combustion. The mesh is automatically refined to capture the turbulent eddies, shock waves and thin reaction zones. The numerical calculations are performed at three tank pressures (250 bar, 100 bar and 50 bar) within two sector domains (1 degree and 30 degree).
The turbulent diffusion and auto-ignition patterns of the leaked hydrogen are correctly predicted across different operating conditions.
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Papers by Didier Bessette
The turbulent diffusion and auto-ignition patterns of the leaked hydrogen are correctly predicted across different operating conditions.
The turbulent diffusion and auto-ignition patterns of the leaked hydrogen are correctly predicted across different operating conditions.