High-resolution experiments on flow mixing in the scaled-down upper plenum of high-temperature gas-cooled reactors under accident scenario

Mao J, Petrov V & Manera A
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Mao, J., Petrov, V., & Manera, A. (2022). High-resolution experiments on flow mixing in the scaled-down upper plenum of high-temperature gas-cooled reactors under accident scenario. In Proceedings of advances in thermal hydraulics (ATH 2022) - Embedded with the 2022 ANS annual meeting (pp. 374-387). https://doi.org/10.13182/T126-37683
https://www.dora.lib4ri.ch/psi/islandora/object/psi:66272

Time-averaged Particle Image Velocimetry (PIV) technique has been applied to measure the flow mixing in the Michigan Multi-jet Gas-mixture Dome (MiGaDome) facility (based on the 1/12th scaled-down model of the reactor upper plenum). Measurements were conducted under patterns of single-jet injection, three-adjacent-jet injection, and six-jet injection at Reynolds number Re = 4097 with compressed air as the working fluid. Good data convergence and repeatability have been achieved. Analysis of the high-resolution mean velocity field and turbulent statistics has revealed the details of the local mixing process and turbulent characteristics under the effects of jet interaction and jet impingement.

Details
Publication Type

Proceedings Paper

Title

High-resolution experiments on flow mixing in the scaled-down upper plenum of high-temperature gas-cooled reactors under accident scenario

Author(s)

Mao, Jiaxin

Petrov, Victor (4105 Thermofluid Experiments and Modelling)

Manera, Annalisa (4105 Thermofluid Experiments and Modelling)

Conference Proceedings

Proceedings of advances in thermal hydraulics (ATH 2022) - Embedded with the 2022 ANS annual meeting

Editor(s)

(editor)

Publisher

American Nuclear Society (ANS)

Publication Place

sine loco

Start Page

374

End Page

387

Publication Year

2022

Conference

5th international topical meeting on advances in thermal hydraulics 2022 (ATH 2022)

Conference Place

Anaheim, CA

Conference Date

June 12-16, 2022

Keywords

HTGRs
PIV
reactor upper plenum
turbulent mixing

Collection

PSI Publications

Additional Information

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