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Measurement of 3-D In-Cylinder Flow Fields Using Doppler Global Velocimetry
Technical Paper
2004-01-1409
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In-cylinder charge motion plays a key role in optimizing the combustion process of modern reciprocating engines. The present paper describes a method for obtaining the volumetric, isothermal, in-cylinder velocity flow field using Doppler Global Velocimetry (DGV). The DGV system is designed for measuring time-averaged velocity data in three different light sheet directions using a single camera system with the aim of providing planar, spatially resolved, three-component velocity data of the cylindrical cross section. As DGV provides time-averaged data, the results can be directly compared with data obtained by 3-D CFD analysis. An automated program code generates characteristic numbers of the measured velocity fields with the aim of assessing and comparing the results of different engine concepts.
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Dingel, O., Kahrstedt, J., Behnk, K., Zuelch, S. et al., "Measurement of 3-D In-Cylinder Flow Fields Using Doppler Global Velocimetry," SAE Technical Paper 2004-01-1409, 2004, https://doi.org/10.4271/2004-01-1409.Also In
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