Integral Length Scales and Time Scales of Turbulence in an Optical Spark-Ignition Engine

• Published in: Flow, turbulence and combustion Vol. 98; no. 2; pp. 523 - 577
• Main Authors: Aleiferis, P. G., Behringer, M. K., Malcolm, J. S.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.03.2017; Springer Nature B.V
• Subjects: Air flow; Automotive Engineering; Engineering; Engineering Fluid Dynamics; Engineering Thermodynamics; Fluid- and Aerodynamics; Heat and Mass Transfer; Integral length scales; Spark-ignition engines; PIV; Integral time scales; LDV

In-cylinder air flow structures are known to play a major role in mixture preparation and flame development in spark-ignition engines. In this paper both LDV and PIV measurements were undertaken in an optical spark-ignition at 1500 RPM 0.5 bar inlet plenum pressure. One of the primary PIV planes was...