关于工程流体力学若干问题的探讨

Discussion on Some Problems of Engineering Fluid Mechanics

作者在多年工程流体力学教学过程中,发现在压力体的确定、流动方向的确定、连续介质假说的理解等问题上,学生普遍存在困难,而且大多数的流体力学教材也没有对上述问题进行深入探讨。为此,本文对上述问题进行专门探讨,以期为学生掌握压力体的确定原则、流动方向的确定方法以及对连续介质假说的理解等提供简明扼要的讲解。

The authors found that students have certain difficulty in correctly understanding determination of pressure volume,flow direction,and the continuum hypothesis.These issues are seldom deeply discussed in current textbooks of engineering fluid mechanics.Therefore,this paper specifically discussed on the above issues,in order to provide clear and concise explanations for students.