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Diagnosis of the kinetic energy of the“21·7”Extreme Torrential Rainfall Event in Henan Province,China

Advances in Atmospheric Sciences 2024年第1期41卷 73-83页

作者： Xiuping YAO Ruoying LI Xiaohong BAO Qiaohua LIU China Meteorological Administration Training Centre Beijing 100081China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China College of Atmospheric Sciences Nanjing University of Information Science and TechnologyNanjing 210044China

An extreme torrential rain(ETR)event occurred in Henan Province,China,during 18-21 July *** on hourly rain-gauge observations and ERA5 reanalysis data,the ETR was studied from the perspective of kinetic energy(K),which can be divided into rotational wind(V_(R))kinetic energy(K_(R)),divergent wind kinetic energy(K_(D)),and the kinetic energy of the interaction between the divergent and rotational winds(K_(RD)).According to the hourly precipitation intensity variability,the ETR process was divided into an initial stage,a rapid increase stage,and maintenance *** showed that the intensification and maintenance of ETR were closely related to the upper-level K,and most closely related to the upperlevel K_(R),with a correlation coefficient of up to *** particular,the peak value of hourly rainfall intensity lagged behind the K_(R) by 8 ***,diagnosis showed that K transformation from unresolvable to resolvable scales made the ETR increase *** meridional rotational wind(u_(R))and meridional gradient of the geopotential(φ)jointly determined the conversion of available potential energy(APE)to K_(R) through the barotropic process,which dominated the rapid enhancement of K_(R) and then caused the rapid increase in *** transportation of K by rotational wind consumed K_(R),and basically offset the K_(R) produced by the barotropic process,which basically kept K_(R) stable at a high value,thus maintaining the ETR.

关键词： extreme torrential rain rotational kinetic energy kinetic energy generation and transport barotropic process

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The Circular Current Loop as a Model of Fundamental Particles

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Journal of High energy Physics, Gravitation and Cosmology 2024年第1期10卷 303-328页

作者： Günther Landvogt Hamburg Germany

The presented circular current loop model reveals that charged fundamental particles such as the electron consist essentially of electric and magnetic energy. The magnetic properties have the same order of magnitude as the electric ones. The electromagnetic field energy is the origin of the inertial mass. The Higgs boson, existing or not, is not needed to “explain” particle mass. The magnetic moment of fundamental particles is not anomalous! The “anomaly” indicates the existence of a small additional amount of kinetic energy. Thus, fundamental particles are not purely field-like such as photons and not (essentially) mass-like such as atoms, they represent a special kind of matter in between. Their kinetic energy is obviously not due to any relativistic effect but is related to an independent physical law that provides, together with the magnetic energy, the angular momentum exactly to be ħ/2. Fundamental particles are (at least) two-dimensional. In the simplest case their core consists of two concentric, nearly identical current loops. Their relative design details, the “anomaly” factor, and the rotational velocity of the uniformly distributed elementary charge follow from the stability condition, i.e. electric and magnetic force balance, and do not depend on the particle’s rest mass! Fundamental particles are objects of classical physics. Their magnetic forces are the true origin of the weak and strong nuclear interactions. For their explanation bosons and gluons are not needed.

关键词： Electric energy Magnetic energy rotational kinetic energy Strong and Weak Nuclear Forces

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Study of the formation and dynamic characteristics of the vortex in the pump sump by CFD and experiment

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Journal of Hydrodynamics 2021年第6期33卷 1202-1215页

作者： Xi-jie Song Rao Yao Liu Chao Zheng-wei Wang State Key Laboratory of Hydro-science and Engineering Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China Department of Hydraulic energy and Power Engineering Yangzhou UniversityYangzhou 225100China

The formation mechanism and the dynamic characteristics of the floor-attached vortex(FAV)in the pump sump are analyzed,with the velocity gradient as the key *** FAV is shown to be formed when the velocity gradient in the singular point area reaches a certain *** evolution of the FAV is accompanied by the energy accumulation and dissipation in the vortex *** generated FAV is in the form of the vortex pair at the initial stage,with opposite directions of *** vortex with the same rotating direction as the impeller is strong because the rotational kinetic energy is easy to *** circumferential velocity of the FAV first increases and then decreases with the radius of the vortex core,indicating the FAV is a kind of forced *** radius with the largest velocity gradient is the radius of the vortex core.

关键词： Floor-attached vortex rotational kinetic energy multiphase flow computational fluid dynamics(CFD) experiment

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