Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Performance Analysis of Carburetor Fuel Metering in SI Engines

Performance Analysis of Carburetor Fuel Metering in SI Engines

Gs, Samy

Paperback

Technology & Engineering

ISBN10: 6209529178
ISBN13: 9786209529177
Publisher: LAP Lambert Academic Publishing
Published: Feb 5 2026
Pages: 88
Weight: 0.28
Height: 0.21 Width: 6.00 Depth: 9.00
Language: English
This research book investigates the airflow characteristics of a carburetor venturi using CFD for different throttle valve angles. A three-dimensional venturi model was developed and analyzed in ANSYS Fluent. The study evaluated velocity and pressure behavior at throttle angles of 0 , 15 , 30 , and 45 . Results show that low throttle openings produce weak airflow acceleration and insufficient pressure drop. Increasing the throttle angle enhances velocity and reduces static pressure at the venturi throat. The 30 throttle angle provides the best balance between airflow acceleration and pressure distribution. Velocity and pressure contours at 30 show smooth flow with limited separation. At 45 , higher airflow is accompanied by increased turbulence and non-uniform pressure recovery. Flow separation and recirculation downstream of the throttle contribute to energy losses. Overall, the study identifies 30 as the optimum throttle angle for efficient venturi performance and improved air-fuel mixture formation.

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