HIGH-FIDELITY SIMULATION OF AN INDUSTRIAL LOW-PRESSURE PUMP OF HELICOPTER USING COUPLED LES/CAA METHOD

被引：0

作者：

Benez, Pierre ^{[1
]}

Moureau, Vincent ^{[2
]}

Cailler, Melody ^{[3
]}

Ribert, Guillaume ^{[4
]}

Mingret, Pascal ^{[4
]}

Robin, Marine ^{[4
]}

机构：

[1] CNRS, CORIA UMR6614, St Etienne Rouvray, France

[2] Safran Tech, Digital Sci & Technol Dept, Chateaufort, France

[3] INSA Rouen Normandie, St Etienne Rouvray, France

[4] Safran Helicopter Engines, Buchelay, France

来源：

PROCEEDINGS OF ASME TURBO EXPO 2024: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, GT2024, VOL 12C | 2024年

关键词：

Large-Eddy Simulation; hybrid regenerative liquid ring pump; hybrid LES/CAA coupling; immersed boundary method; CENTRIFUGAL PUMP; NOISE; FLOW;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper is devoted to the simulation of an industrial hybrid regenerative liquid-ring pump in pure liquid conditions. An hybrid Large-Eddy Simulation (LES) / Computational AeroAcoustic (CAA) coupled method, based on the association between a low-Mach number flow solver and an implicit linear acoustic solver, is used to rebuild efficiently the hydro-acoustic pressure fluctuations generated by the flow. The acoustic effects are solved implicitly to avoid being limited by the acoustic time step at low-Mach number. This fully coupled strategy, already validated in a body-fitted formalism, is adapted here to an immersed-boundary formalism for the modeling of the pump rotor motion. The LES/CAA simulation of the pump is used to investigate the potential impact of the acoustics on the pump performances and the fuel vaporization risks.

引用

页数：12

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