Portfolio: The Details of My Publications
Transient Rear Cavity Vortex Flow in a Spherical Casing Nuclear Reactor Coolant Pump
In this study, a new type of large-scale vortex inside the spherical casing was found, named the rear cavity vortex.
The characteristic frequency of the rear cavity vortex is analyzed, which provides valuable
guidance for improving the efficiency and operational reliability of the NRCP.
Energy Characteristics of Transient Rear Cavity Vortex in a Spherical Casing Nuclear Reactor Coolant Pump
This study employs Large Eddy Simulation (LES), combined with Proper Orthogonal Decomposition (POD) and Turbulent Kinetic Energy (TKE) analysis, to investigate the energy characteristics of this vortex both qualitatively and quantitatively, enabling a new approach to characterizing energy dissipation.
Enhanced Quantitative Methodology for Energy Loss Analysis and Its Application to Transient Annular Vortex of an Annular-Casing Nuclear Reactor Coolant Pump
This study proposes and applies a novel enhanced methodology for quantifying energy loss, aiming to more accurately analyze the characteristics of a newly discovered annular vortex within the annular casing of a nuclear reactor coolant pump; and the results show that turbulent entropy production dominates. A new dimensionless number—the energy loss coefficient—is introduced to characterize local energy loss intensity.
LES-Based Time–Frequency Characterization of Vortex–Pressure Coupling in an Axial-Flow Nuclear Reactor Coolant Pump Impeller
This study is based on 3D-LES and time–frequency coupled analysis to provide an in-depth investigation of pressure pulsations and vortex structure mechanisms within the impeller passage of the nuclear reactor coolant pump; revealing that the local coherence at the impeller inlet is higher than at the impeller outlet, indicating that the vortex–pressure coupling strength decays significantly along the axial direction due to turbulence evolution.
