(497g) Simulation Studies of Coolant Flow Past Fuel Rod Bundles and Vibrational Lock-In Conditions in a Small Modular Reactor
- Conference: AIChE Annual Meeting
- Year: 2013
- Proceeding: 2013 AIChE Annual Meeting
- Group: Computing and Systems Technology Division
- Session:
- Time: Wednesday, November 6, 2013 - 2:30pm-2:50pm
Coolant flow past fuel rods and rod bundles in a small modular nuclear reactor (SMR) was simulated using ANSYS FLUENT 14.0. Over a range of transient flow conditions, the influence of the Strouhal number on vortex shedding past the fuel rods and corresponding patterns is studied in detail. The onset of the lock-in condition for cylindrical fuel rods in different fuel rod bundle arrays within an operating range of Strouhal numbers and the consequent variation in thermal profiles has been reported.
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