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Title: A Comprehensive High Performance Predictive Tool for Fusion Liquid Metal Hydromagnetics

Abstract

In Phase I SBIR project, HyPerComp and Texcel initiated the development of two induction-based MHD codes as a predictive tool for fusion hydro-magnetics. The newly-developed codes overcome the deficiency of other MHD codes based on the quasi static approximation by defining a more general mathematical model that utilizes the induced magnetic field rather than the electric potential as the main electromagnetic variable. The UCLA code is a finite-difference staggered-mesh code that serves as a supplementary tool to the massively-parallel finite-volume code developed by HyPerComp. As there is no suitable experimental data under blanket-relevant conditions for code validation, code-to-code comparisons and comparisons against analytical solutions were successfully performed for three selected test cases: (1) lid-driven MHD flow, (2) flow in a rectangular duct in a transverse magnetic field, and (3) unsteady finite magnetic Reynolds number flow in a rectangular enclosure. The performed tests suggest that the developed codes are accurate and robust. Further work will focus on enhancing the code capabilities towards higher flow parameters and faster computations. At the conclusion of the current Phase-II Project we have completed the preliminary validation efforts in performing unsteady mixed-convection MHD flows (against limited data that is currently available in literature), and demonstrated flowmore » behavior in large 3D channels including important geometrical features. Code enhancements such as periodic boundary conditions, unmatched mesh structures are also ready. As proposed, we have built upon these strengths and explored a much increased range of Grashof numbers and Hartmann numbers under various flow conditions, ranging from flows in a rectangular duct to prototypic blanket modules and liquid metal PFC. Parametric studies, numerical and physical model improvements to expand the scope of simulations, code demonstration, and continued validation activities have also been completed.« less

Authors:
 [1];  [1];  [1];  [2];  [2];  [2]
  1. HyPerComp Inc., Westlake Village, CA (United States)
  2. TEXCEL, Houston, TX (United States)
Publication Date:
Research Org.:
HyPerComp Inc., Westlake Village, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
OSTI Identifier:
1402053
Report Number(s):
HPC-DOE-P2SBIR-FINAL-2017
DOE Contract Number:
SC0012061
Type / Phase:
SBIR (Phase II)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 42 ENGINEERING; Magnetohydrodynamics; Computational Fluid Dynamics; High Performance Computation; Blanket; Mixed Convection; Comprehensive Modeling

Citation Formats

Huang, Peter, Chhabra, Rupanshi, Munipalli, Ramakanth, Pulugundla, Gautam, Kawczynski, Charlie, and Smolentsev, Sergey. A Comprehensive High Performance Predictive Tool for Fusion Liquid Metal Hydromagnetics. United States: N. p., 2017. Web.
Huang, Peter, Chhabra, Rupanshi, Munipalli, Ramakanth, Pulugundla, Gautam, Kawczynski, Charlie, & Smolentsev, Sergey. A Comprehensive High Performance Predictive Tool for Fusion Liquid Metal Hydromagnetics. United States.
Huang, Peter, Chhabra, Rupanshi, Munipalli, Ramakanth, Pulugundla, Gautam, Kawczynski, Charlie, and Smolentsev, Sergey. Mon . "A Comprehensive High Performance Predictive Tool for Fusion Liquid Metal Hydromagnetics". United States. doi:.
@article{osti_1402053,
title = {A Comprehensive High Performance Predictive Tool for Fusion Liquid Metal Hydromagnetics},
author = {Huang, Peter and Chhabra, Rupanshi and Munipalli, Ramakanth and Pulugundla, Gautam and Kawczynski, Charlie and Smolentsev, Sergey},
abstractNote = {In Phase I SBIR project, HyPerComp and Texcel initiated the development of two induction-based MHD codes as a predictive tool for fusion hydro-magnetics. The newly-developed codes overcome the deficiency of other MHD codes based on the quasi static approximation by defining a more general mathematical model that utilizes the induced magnetic field rather than the electric potential as the main electromagnetic variable. The UCLA code is a finite-difference staggered-mesh code that serves as a supplementary tool to the massively-parallel finite-volume code developed by HyPerComp. As there is no suitable experimental data under blanket-relevant conditions for code validation, code-to-code comparisons and comparisons against analytical solutions were successfully performed for three selected test cases: (1) lid-driven MHD flow, (2) flow in a rectangular duct in a transverse magnetic field, and (3) unsteady finite magnetic Reynolds number flow in a rectangular enclosure. The performed tests suggest that the developed codes are accurate and robust. Further work will focus on enhancing the code capabilities towards higher flow parameters and faster computations. At the conclusion of the current Phase-II Project we have completed the preliminary validation efforts in performing unsteady mixed-convection MHD flows (against limited data that is currently available in literature), and demonstrated flow behavior in large 3D channels including important geometrical features. Code enhancements such as periodic boundary conditions, unmatched mesh structures are also ready. As proposed, we have built upon these strengths and explored a much increased range of Grashof numbers and Hartmann numbers under various flow conditions, ranging from flows in a rectangular duct to prototypic blanket modules and liquid metal PFC. Parametric studies, numerical and physical model improvements to expand the scope of simulations, code demonstration, and continued validation activities have also been completed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 23 00:00:00 EDT 2017},
month = {Mon Oct 23 00:00:00 EDT 2017}
}

Technical Report:
This technical report may be released as soon as October 23, 2021
Other availability
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