Simulation of boiling two-phase flow in a helical coil steam generator using the spectral element code NEK-2P

D. R. Shaver, A. Tomboulides, A. Tentner, P. Vegendla, E. Merzari, N. Salpeter, W. D. Pointer

Research output: Contribution to conferencePaper

Abstract

The boiling flow inside a helical coil steam generator is simulated with the two-fluid model in Nek-2P. Nek-2P is the multiphase branch of the spectral element code Nek5000. Details of the implementation of the two-fluid model and the included closure models are discussed. The presented closure models include interactions for momentum, heat, and mass transfer between phases. The model is fully consistent in the limits of both phasic volume fractions approaching zero and is able to simulate flows of dispersed vapor, continuous liquid, dispersed liquid, continuous vapor or any combination thereof. Results from the simulation of the helical coil indicate strong phasic separation driven by the effects of buoyancy and inertia. Significant differences were observed in the results compared to simulations performed using Star-CCM+, although these differences were somewhat expected.

Original languageEnglish (US)
Pages263-276
Number of pages14
StatePublished - Jan 1 2018
EventInternational Topical Meeting on Advances in Thermal Hydraulics 2018, ATH 2018 - Held in conjunction with the 2018 American Nuclear Society (ANS) Winter Meeting - Orlando, United States
Duration: Nov 11 2018Nov 15 2018

Other

OtherInternational Topical Meeting on Advances in Thermal Hydraulics 2018, ATH 2018 - Held in conjunction with the 2018 American Nuclear Society (ANS) Winter Meeting
CountryUnited States
CityOrlando
Period11/11/1811/15/18

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Nuclear Energy and Engineering
  • Nuclear and High Energy Physics

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    Shaver, D. R., Tomboulides, A., Tentner, A., Vegendla, P., Merzari, E., Salpeter, N., & Pointer, W. D. (2018). Simulation of boiling two-phase flow in a helical coil steam generator using the spectral element code NEK-2P. 263-276. Paper presented at International Topical Meeting on Advances in Thermal Hydraulics 2018, ATH 2018 - Held in conjunction with the 2018 American Nuclear Society (ANS) Winter Meeting, Orlando, United States.