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Front. Energy Res., 15 April 2021 |

Editorial: Safety Analysis of Nuclear Reactor Thermal-Hydraulics

  • 1School of Energy and Power Engineering, Chongqing University, Chongqing, China
  • 2Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI, United States
  • 3CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu, China
  • 4Thermal Hydraulics Safety Research Division, Korea Atomic Energy Research Institute, Daejeon, South Korea

A large number of nuclear power plants are under construction in Asia (McDonald, 2008). Thereby, the demand for research on reactor design and thermal hydraulics is of high priority (Sovacool, 2010). Prof. Liangming Pan from Chongqing University holds the 9th China–Korea Workshop on Nuclear Reactor Thermal–Hydraulic in 2019. There are many high-quality conference papers submitted. To select and publish the top articles in the conferences, Prof. Pan leads the Research Topic “Safety Analysis of Nuclear Reactor Thermal Hydraulics” in the journal Frontiers in Energy Research. Finally, 11 articles are collected, covering the experimental and numerical research, from light water to liquid metal and supercritical coolant.

There are several articles about the safety of light water reactors. Kim J. et al. contribute the “integral effect test on top-spot break scenario with 4 inches cold leg break LOCA in ATLAS Facility.” Kim H. T. et al. present their “Simulation of a Station Blackout Accident for the SMART using the CINEMA Code.” Du et al. write the “review of regime maps of steam submerged direct contact condensation.”

Meanwhile, there are several pieces of research about the bubble and critical heat flux. Yu et al. work on the “experimental study of bubbly-slug flow transition criteria in a vertical circular tube by using WMS.” Liu et al. publish the “assessment of a theoretical model to predicting forced convective critical heat flux in rod bundles.” Park and Chung contribute the “simulation of critical heat flux phenomenon using a non-heating hydrogen evolving system.”

There is also research on advanced reactors. Xiang et al. show their “Study on natural circulation heat transfer characteristics of different liquid metals based on factor analysis.” Lv et al. present “A Critical Flow Model For Supercritical Pressures.”

Finally, this Research Topic also involves work on small modular reactors and microreactors. For example, Zhang et al. publish “Thermoelectric Conversion Performance of Combined Thermoions System for Space Nuclear Power Supply.” Yuan et al. show the work about “Numerical Simulation of Flow Boiling in Small Channel of Plate OTSG.” Wang et al. contributes to the “Rod Ejection and Drop Accident Analysis of Aqueous Homogeneous Solution Reactor.”

After almost 1-year revision and update, this Research Topic finally selected those 11 articles and published them in the journal Frontiers in Energy Research. It allows showing those high-quality work to the public who do not have a chance to attend this meeting. The journal Frontiers in Energy Research will permit publishing more articles from international conferences. All the editors are open to contact for further information.

Author Contributions

LP is the leading author. JW is the contacting author. YH and K-YC are senior people. All authors contributed to the article and approved the submitted version.

Conflict of Interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.


McDonald, A. (2008). Nuclear power global status. IAEA Bull. 49:45. Available online at:

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Sovacool, B. K. (2010). A critical evaluation of nuclear power and renewable electricity in Asia. J. Contemp. Asia 40, 369–400. doi: 10.1080/00472331003798350

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Keywords: safety, nuclear reactor, thermal hydraulics, critical heat flux, small modular reactor

Citation: Pan L, Wang J, Huang Y and Choi K-Y (2021) Editorial: Safety Analysis of Nuclear Reactor Thermal-Hydraulics. Front. Energy Res. 9:652233. doi: 10.3389/fenrg.2021.652233

Received: 12 January 2021; Accepted: 25 February 2021;
Published: 15 April 2021.

Edited and reviewed by: Wenzhong Zhou, Sun Yat-Sen University, China

Copyright © 2021 Pan, Wang, Huang and Choi. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Jun Wang,