摘要
从流量问题入手,利用两种方法给出常量场流量问题模型的求解.重点阐述了三个问题,即为什么要区分有向曲面的侧,什么是有向投影,如何理解两类曲面积分的关系.以这一个模型为基础,三个问题为突破,形象地分析了第二型曲面积分概念中的难点与困惑.
To overcome the difficulties of understanding the 2 nd type surface integral,a case of flow in constant vector field is established by two methods and three questions are focused,which are why we differentiate the sides of a directed surface,what the directed projection is,and how to comprehend the relation between the two types of surface integrals.
作者
刘妮
任谨慎
焦红英
LIU Ni;REN Jinshen;JIAO Hongying(Basic Department,Air Force Engineering University,Xi'an 710051,China)
出处
《高等数学研究》
2023年第2期64-66,72,共4页
Studies in College Mathematics
基金
空军工程大学基础部教育理论基金.
关键词
流量
第二型曲面积分
有向投影
两类曲面积分的关系
flow
2 nd type surface integral
directed projection
relation between two types of surface integrals
