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Chapter 21

Flow in Pipes

Общие характеристики течения в трубопроводе I
Общие характеристики течения в трубопроводе I
Pipe flow describes fluid movement through enclosed, fully-filled conduits, typically cylindrical pipes like water pipes or hydraulic hoses, engineered to ...
Общие характеристики Pipe Flow II
Общие характеристики Pipe Flow II
As fluid enters a pipe, it first flows through an entrance region where the velocity profile adjusts, forming a boundary layer along the walls. This ...
Ламинарный поток
Ламинарный поток
Laminar flow refers to the smooth, orderly motion of fluid particles in which each particle follows parallel paths with minimal mixing between layers. The ...
Ламинарный поток: решение проблем
Ламинарный поток: решение проблем
Consider air flowing through the pipe at 300 Kelvin at standard atmospheric pressure, with a mass flowrate of 0.0163 kilograms per second. If the flow is ...
Турбулентный поток
Турбулентный поток
Turbulent flow is a fluid movement marked by chaotic shifts in pressure and velocity. Unlike laminar flow, turbulent flow displays complex, irregular ...
Турбулентное течение: решение проблем
Турбулентное течение: решение проблем
Consider a liquid that needs to be carbonated. Both the liquid and the carbon dioxide gas are cooled. The temperature is selected as 20 degrees Celsius to ...
Основные потери в трубах
Основные потери в трубах
Consider  a fluid flowing through a pipe; it encounters frictional resistance, causing energy losses known as major losses, resulting in a pressure ...
Незначительные потери в трубах
Незначительные потери в трубах
Minor losses in pipe systems arise from components like valves, bends, and fittings that disrupt fluid flow, causing energy dissipation through turbulence ...
Однотрубные системы
Однотрубные системы
In pipe flow problems, scenarios are grouped by known information and desired calculation and are typically classified as Type I, II, or III. In a Type I ...
Многотрубные системы
Многотрубные системы
Multiple pipe systems consist of interconnected pipes that regulate fluid flow across complex networks. They can be arranged in series, parallel, loop, or ...
Измерение расхода в трубе
Измерение расхода в трубе
Flow measurement devices—such as orifice, nozzle, and Venturimeters—operate by narrowing the flow area. This increases fluid velocity and ...
Измерение расхода в трубе: решение проблемы
Измерение расхода в трубе: решение проблемы
Consider a spray tank system designed to evenly apply pest-control liquid to plants. The system includes a pressurized tank at 150 kPa filled with ...
Пример проектирования: проектирование бытовой водопроводной системы
Пример проектирования: проектирование бытовой водопроводной системы
The residential plumbing system is designed by assessing the building's water demand and flow rate needs based on occupancy and fixture requirements. ...
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