Date of Publication :7th April 2025

Abstract: Diesel engine performance and efficiency are greatly influenced by the air intake system, which also affects combustion characteristics [5]. Controlling airflow and increasing swirl, which have an impact on fuel-air mixing and combustion efficiency, are critical functions of the intake valve [8]. This work examines how airflow dynamics and swirl formation are affected by double-shrouded intake valves with different shroud angles. Utilizing various intake valve configurations, computational fluid dynamics (CFD) simulations are used to analyze swirl ratio, and velocity distribution. The findings suggest that optimal shroud angles improve fuel-air mixing and possibly increase combustion efficiency by intensifying air swirls while preserving adequate airflow. By shedding light on how valve shrouding affects intake flow characteristics, the study helps to direct future developments in diesel engine intake system.

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