Axial and swirl velocities have been measured for steady axisymmetric flow in a cylinder past a fixed intake valve located on the cylinder centerline, for two different intake port geometries and two valve lifts, in order to study the effects of swirl and valve lift on turbulence generation. Both Laser Doppler Anemometry (LDA) and Constant Temperature Anemometry (CTA) velocity measurements were obtained. The cylinder diameter was 82.6 mm, cylinder height was 114.3 mm, and the centrally located valve had a diameter of 41.9 mm. The LDA mean axial velocity data indicated a conical jet issuing from the valve, and a recirculating toroidal vortex above the valve for each case. Also, for the swirl intake cases, the swirl mean velocity in the toroidal vortex increased linearly with radius. Axial fluctuation velocities were about 1 m/sec away from the conical jet, for both valve lifts and both inlet flow geometries. In the conical jet, axial fluctuation velocities of 2–2.5 m/sec were observed. The swirl fluctuation was consistently lower than the axial fluctuation. The swirl inlet increased the magnitude of the swirl fluctuation in the conical jet.
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ASME 2002 Internal Combustion Engine Division Fall Technical Conference
September 8–11, 2002
New Orleans, Louisiana, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4662-8
PROCEEDINGS PAPER
Intake Turbulence Generated by a Steady Valve-Cylinder Flow
Gearle Bailey,
Gearle Bailey
West Virginia University, Morgantown, WV
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John Kuhlman
John Kuhlman
West Virginia University, Morgantown, WV
Search for other works by this author on:
Gearle Bailey
West Virginia University, Morgantown, WV
John Kuhlman
West Virginia University, Morgantown, WV
Paper No:
ICEF2002-498, pp. 201-209; 9 pages
Published Online:
January 22, 2009
Citation
Bailey, G, & Kuhlman, J. "Intake Turbulence Generated by a Steady Valve-Cylinder Flow." Proceedings of the ASME 2002 Internal Combustion Engine Division Fall Technical Conference. Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components. New Orleans, Louisiana, USA. September 8–11, 2002. pp. 201-209. ASME. https://doi.org/10.1115/ICEF2002-498
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