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Performance Analysis of Carburetor Fuel Metering in SI Engines: Optimizing Fuel Delivery in Spark-Ignition Engines - Softcover

GS, SAMY

 
9786209529177: Performance Analysis of Carburetor Fuel Metering in SI Engines: Optimizing Fuel Delivery in Spark-Ignition Engines
Softcover
ISBN 10: 6209529178 ISBN 13: 9786209529177
Publisher: LAP LAMBERT Academic Publishing, 2026

Synopsis

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.

"synopsis" may belong to another edition of this title.

Publisher
LAP LAMBERT Academic Publishing
Publication date
2026
Language
English
ISBN 10 
6209529178
ISBN 13 
9786209529177
Binding
Paperback
Number of pages
88