Investigation of droplet effects on vortex shedding from a bluff body

MSc graduation project of Pejman Shoeibi Omrani
Location: TNO
Supervisors: Prof. dr. ir. B.J. Boersma, dr. A. Twerda & Ir. S. Belfroid
Start of project: September 2010

Project description:

Vortex shedding occurs when a fluid flows past a blunt object. Vortices are shed periodically, resulting in pressure fluctuations. These may be dangerous to process installations, especially if they couple to a resonator. In other cases they may be beneficial: a vortex flow meter uses this principle to measure flow rate. In multiphase flow, vortex shedding is strongly damped by the presence of even small amounts of liquids. Vortex meters become much less effective in these situations.

Goal of project: Analysis of effect of droplet mass loading on the shedding frequency.

Research approach: Numerical simulation is doing in FLUENT. We will design a bluff body and a flow loop to validate the data experimentally.

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