Flow in a Model Engine with a Shrouded Valve-A Combined Experimental and Computational Study

A. D. Gosman*, Yeng-Yung Tsui, C. Vafidis

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

23 Scopus citations

Abstract

Multidimensional model predictions and laser Doppler anemometer measurements are presented of the flow in a motored model engine equipped with a central shrouded valve. Although the accuracy of prediction, as assessed against the data, is at best moderate, the simulation is sufficiently close to provide valuable insight into the flow behaviour. an important finding in this regard is that the shrouded valve generates a long-lived tumbling vortex which is sustained and amplified by the compression process and in turn causes amplification of the turbulence, the TDC levels of which are more than twice those observed in similar studies with non-shrouded valves. It is concluded that inlet arrangements which produce such tumbling motions are likely to lead to enhanced flame propagation rates.

Original languageEnglish
Number of pages24
DOIs
StatePublished - 1 Feb 1985
EventInternational Congress and Exposition - Detroit, MI, United States
Duration: 25 Feb 19851 Mar 1985

Conference

ConferenceInternational Congress and Exposition
CountryUnited States
CityDetroit, MI
Period25/02/851/03/85

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