Establishment of a Database by Conducting Intake Manifold and In-Cylinder Flow Measurements inside an Internal Combustion Engine Assembly

Paper #:
  • 2013-01-0565

Published:
  • 2013-04-08
DOI:
  • 10.4271/2013-01-0565
Citation:
Mittal, M., Schock, H., Vedula, R., and Naguib, A., "Establishment of a Database by Conducting Intake Manifold and In-Cylinder Flow Measurements inside an Internal Combustion Engine Assembly," SAE Technical Paper 2013-01-0565, 2013, https://doi.org/10.4271/2013-01-0565.
Pages:
16
Abstract:
An experimental study has been conducted to quantify the velocity and pressure inside an idealized intake manifold of a motored internal combustion engine assembly. The aim of this work is to provide the real-time boundary conditions for more accurate multi-dimensional numerical simulations of complex in-cylinder flows in an internal combustion engine as well as the resultant in-cylinder flow patterns. The geometry of the intake manifold is simplified for this purpose. A hot-wire anemometer and a piezoresistive absolute pressure transducer are used to measure the velocity and pressure, respectively, over a plane inside the circular section of the intake manifold. In addition, pressure measurements are performed over an elliptical section near the intake port. Phase-averaged velocity and pressure profiles are then calculated from the instantaneous measurements. Experiments were performed at 900 and 1200 rpm engine speeds with wide open throttle. Results of velocity and pressure measurements show the expected oscillatory nature of flow inside the intake manifold. The in-cylinder flow measurements are performed using the stereoscopic molecular tagging velocimetry technique during the intake and compression strokes.
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2013-04-08