Version 1
: Received: 29 October 2024 / Approved: 29 October 2024 / Online: 30 October 2024 (05:30:12 CET)
How to cite:
Jeong, S.-J.; Moon, S.-J. Three-Dimensional Pulsating Flow Simulation in a Multi-Point Gas Admission Valve for Large Bore CNG Engines. Preprints2024, 2024102320. https://doi.org/10.20944/preprints202410.2320.v1
Jeong, S.-J.; Moon, S.-J. Three-Dimensional Pulsating Flow Simulation in a Multi-Point Gas Admission Valve for Large Bore CNG Engines. Preprints 2024, 2024102320. https://doi.org/10.20944/preprints202410.2320.v1
Jeong, S.-J.; Moon, S.-J. Three-Dimensional Pulsating Flow Simulation in a Multi-Point Gas Admission Valve for Large Bore CNG Engines. Preprints2024, 2024102320. https://doi.org/10.20944/preprints202410.2320.v1
APA Style
Jeong, S. J., & Moon, S. J. (2024). Three-Dimensional Pulsating Flow Simulation in a Multi-Point Gas Admission Valve for Large Bore CNG Engines. Preprints. https://doi.org/10.20944/preprints202410.2320.v1
Chicago/Turabian Style
Jeong, S. and Seong-Joon Moon. 2024 "Three-Dimensional Pulsating Flow Simulation in a Multi-Point Gas Admission Valve for Large Bore CNG Engines" Preprints. https://doi.org/10.20944/preprints202410.2320.v1
Abstract
This study examines the dynamic fluid behavior of a PWM-controlled Solenoid-Operated Gas Admission Valve (SOGAV) for large-bore CNG engines using 3D CFD simulations with dynam-ic mesh techniques. The research focuses on the influence of orifice geometry variations in the multi-hole restrictor and pressure differentials between the inlet and outlet on flow stability, turbulence, and valve performance. Results demonstrate that multi-hole restrictors with differ-ent-sized orifices improve flow uniformity and reduce turbulence, thereby mitigating flow re-sistance. Transient simulations further reveal standing wave formation and pressure wave in-terference, emphasizing that steady-state models cannot capture critical transient phenomena, such as accelerated and decelerated jet-like flows and flow separation. These findings provide key insights into SOGAV optimization, contributing to enhanced fuel efficiency and engine re-sponsiveness, meeting the performance requirements of modern gas engines.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
