北半球台风生消过程的力学分析

Mechanical Analysis of the Process of Tropical Cyclogenesis and Tropical Cycloysis in the Northern Hemisphere

台风灾害是我国沿海地区重大自然灾害之一,它多发生于夏秋季节,具有突发性强、破坏力大的特点。以2017年第13号台风"天鸽"为例,运用科里奥利力、角动量守恒、伯努利方程等力学知识对其产生、移动及消失进行力学分析,阐明北半球台风生消过程的一般规律及其带来的严重灾害。

Typhoon hazard is one of the worst natural disasters in coastal regions.It often occurs in hot summer,having the characteristics of strong sudden and great damage.Taking no.13 in 2017 typhoon Hato as an example,the authors analyze the mechanics principle of its formation,movement and dissipation by using mechanics knowledge,such as Coriolis force,conservation of angular momentum,Bernoulli equation to expound the general rules of the process of tropical cyclogenesis and tropical cycloysis in the Northern Hemisphere and the serious disaster that it brings.