1998-02-23

Whole Field MTV Measurements in a Steady Flow Rig Model of an IC Engine 980481

The flow field inside a steady flow rig is investigated using Molecular Tagging Velocimetry (MTV). The MTV technique is essentially the molecular counterpart of the PIV based approaches, and does not require the use of seed particles. In the work reported here, the fluid velocity data are obtained simultaneously at typically 300 points over a plane. Spatial maps of the instantaneous velocity and vorticity fields are presented. The mean and RMS fluctuation of the two measured components of the velocity vector are in general agreement with the trends reported based on previous single-point LDV measurements in a similar geometry.

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