Abstract
Direct numerical simulation of a coolant flow in a significant portion of the HFIR subchannel is performed at a hydraulic-diameter-based Reynolds number of 70,255. Location based data is gathered and processed for ten locations along the span of the channel to assess curvature effects and boundary conditions on flow parameters. Velocity profiles across the span of the domain are plotted and compared along with turbulent kinetic energy and turbulence dissipation rate. Turbulence statistics are analyzed and presented for different spanwise locations of the domain and compared with flat channel parameters. Results indicate different turbulence levels at the ends of the domain as well as increased velocity on the convex side of the channel compared to the concave side.
| Original language | English |
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| Title of host publication | Proceedings of Advances in Thermal Hydraulics, ATH 2022 - Embedded with the 2022 ANS Annual Meeting |
| Publisher | American Nuclear Society |
| Pages | 54-64 |
| Number of pages | 11 |
| ISBN (Electronic) | 9780894487811 |
| DOIs | |
| State | Published - 2022 |
| Event | 5th International Topical Meeting on Advances in Thermal Hydraulics 2022, ATH 2022, held in conjunction with the 2022 American Nuclear Society ,ANS Annual Meeting - Anaheim, United States Duration: Jun 12 2022 → Jun 16 2022 |
Publication series
| Name | Proceedings of Advances in Thermal Hydraulics, ATH 2022 - Embedded with the 2022 ANS Annual Meeting |
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Conference
| Conference | 5th International Topical Meeting on Advances in Thermal Hydraulics 2022, ATH 2022, held in conjunction with the 2022 American Nuclear Society ,ANS Annual Meeting |
|---|---|
| Country/Territory | United States |
| City | Anaheim |
| Period | 06/12/22 → 06/16/22 |
Funding
The project is supported by the Low-Enriched Uranium conversion program administered by Department of Energy National Nuclear Security Administration. The work is partially supported by the North Carolina State University Graduate Fellowship in Nuclear Engineering. The solution presented here is using the Acusim linear algebra solution library provided by Altair Engineering Inc, and meshing and geometric modeling libraries are provided by Simmetrix Inc. The high-performance computing resources were provided by National Energy Research Scientific Computing allocation.
Keywords
- Direct Numerical Simulation
- HFIR
- Turbulent Flow