Towards Numerical Simulation of Snow Showers in Jet engine Fuel Systems

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Date

2014

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MESR

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Copyright PERSEE 2003-2023. Works reproduced on the PERSEE website are protected by the general rules of the Code of Intellectual Property. For strictly private, scientific or teaching purposes excluding all commercial use, reproduction and communication to the public of this document is permitted on condition that its origin and copyright are clearly mentionned.


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Particle ; Two-way coupling ; Finite volume ; Moving Least Squares ; Simple algorithm

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Snowfall

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Ewan Marechal et al., « Towards Numerical Simulation of Snow Showers in Jet engine Fuel Systems », Journées de l'hydraulique, ID : 10670/1.c5g6lv


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Aircraft fuel systems are subject to icing at low temperatures. If the flow rate is increased, sudden releases of large quantities of ice may occur, called “ snow showers”. They threaten the safety of flights and have been the subject of several investigations over past years. Jet engines fuel system components may sensitive to clogging. When a snow shower happens, ice particles settle in seconds, forming a porous layer. Modelling such events involves transient hydraulics and solid dynamics. We propose to investigate numerically the dynamics of transient particle clogging. Equations of motion for the incompressible fluid phase are discretized in a high-order finite-volume context and solved using a pressure-based algorithm. The discrete phase is modelled in a Lagrangian frame. Contacts between solids are handled by a dedicated algorithm. Solid volume fraction is calculated in regions occupied by particles. Finally, two-way coupling is achieved by source terms for momentum exchange, viscous and inertial loss. 2D simulation of the clogging of an ideal filter is performed.

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