Challenges and concerns for development of nuclear thermal-hydraulics

Autor: Yassin A. Hassan, F. D'Auria
Rok vydání: 2021
Předmět:
Nuclear and High Energy Physics
Engineering
thermal hydraulic design
020209 energy
02 engineering and technology
01 natural sciences
Phase (combat)
nuclear thermal hydraulics
010305 fluids & plasmas
law.invention
Thermal hydraulics
Development (topology)
law
0103 physical sciences
0202 electrical engineering
electronic engineering
information engineering
General Materials Science
Safety
Risk
Reliability and Quality
Waste Management and Disposal
Statement (computer science)
water cooled reactor
business.industry
Mechanical Engineering
Flourishing
safety evaluation
Nuclear reactor
nuclear thermal hydraulics
water cooled reactor
thermal hydraulic design
safety evaluation
licensig needs
perspectives in research
perspectives in research
Research objectives
Nuclear Energy and Engineering
Risk analysis (engineering)
Key (cryptography)
licensig needs
business
Zdroj: Nuclear Engineering and Design. 375:111074
ISSN: 0029-5493
DOI: 10.1016/j.nucengdes.2021.111074
Popis: Nuclear Thermal Hydraulics (NTH), following a flourishing growth until the end of the last century entered a phase of slow advancement (this statement does not apply to each sector of NTH). In the area of applications to nuclear reactor design and safety an emblem for this situation is exhibited by system computer codes: their new development began a quarter of a century ago and current predictive capabilities are not better than those available before. Turbulence modeling and averaging techniques, as an example for two-phase flows, are among the key aspects which need improvement since decades; otherwise, attention of decision makers and researchers is oriented towards fashion topics or even research objectives which can be accomplished within an assigned framework of resources (time and budget). A synthesis of today status is provided in the paper after attempting to address the question ‘what is nuclear thermal hydraulics?’ Perspective directions to be pursued are recommended, e.g. the water-fall or the turbulent energy cascade experiment, although it is recognized that quantum leap in modeling (unfortunately not obtainable from present authors) are needed to exit the stagnation.
Databáze: OpenAIRE
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