An Experimental and Numerical Study of the Steady-State Flow of a SI-Engine Intake Port 982470

This paper describes an experimental and numerical investigation studying the steady-state flow generated by a SI-engine intake port on a water analogue test rig. The experimental method utilised was Digital Particle Image Velocimetry(DPIV) which allows the rapid measurement of large areas of the flow. The velocity fields were measured in several planes of a cylindrical glass test section under the intake port. A three dimensional CFD analysis was conducted to numerically determine the flow in the test rig. The goal of the study was to compare and evaluate the results of both methods in order to determine their respective validity and limitations. The theory and procedures used for both the experimental and numerical methods are discussed in detail. A comparison of the resulting flow structures from the DPIV measurements and the CFD analysis showed good qualitative and quantitative agreement between the two methods.


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