Chapter 17
Fluid Kinematics
Eulerian 和 Lagrangian Flow 描述
Fluid flow can be described using two main approaches: the Eulerian and Lagrangian methods.
The Eulerian method measures fluid properties like pressure, ...
流类型简介
Flows can be categorized based on dimensionality. In one-dimensional flow, properties like velocity and pressure change along a single direction, as seen ...
流线、条纹线和路径线
Consider water flowing steadily through a curved pipe. The direction of flow inside the pipe can be visualized using streamlines.
A streamline represents ...
控制音量和系统表示
A control volume is a defined region in space where interactions involving mass, energy, or momentum are analyzed.
Consider water flowing through a pipe. ...
稳态和非稳态流中的速度和加速度
Consider a fluid particle moving along a pathline in a flow. The particle's velocity is denoted by the function of its location and time.
Now, the ...
雷诺传递定理
Consider a fluid in motion. The Reynolds transport theorem provides the relationship between the time rate of change of an extensive property in a system ...
设计示例:流经灭火器的液流
A fire extinguisher uses pressurized water to generate a powerful stream through a nozzle.
The water inside is stored at a much higher pressure than the ...
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