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Issues associated with DWO in recent studies
BELLO Mary-Olubunmi1,2, PENG Minjun1, and XIA Genglei1
 
1. College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, China (marybello@hrbeu.edu.cn, heupmj@hrbeu.edu.cn, xiagenglei@163.com)
2. Nuclear Power Plant Development Directorate, Nigeria Atomic Energy Commission, Asokoro, Abuja, Nigeria
 
Abstract:Extensive studies have been carried out on instabilities, particularly Density Wave Oscillation (DWO). These studiesinvestigated theirnegative effects on nuclear systems and found ways of minimizing them. The presentwork discussed the major types of DWO and their mode of occurrence. Recent experimental and analytical work done on DWO were also analysed together with the key issues and discoveries made in the various studies. Effects of system parameters on DWO require further study to determine mechanisms responsible for the various observations made.Also, more studies on DWO using RELAP5 code are needed to ascertain if the numerical diffusion employed in the code affects results of simulation.
Keyword:density wave oscillation; instabilities; stability map; RELAP5
 
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