Коэффициент расхода жидкости в канале с боковым сужением потока
| Jazyk: | ruština |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Вестник МГСУ. |
| ISSN: | 2304-6600 1997-0935 |
| Popis: | Установлено влияние числа Рейнольдса и числа Вебера на коэффициент расхода течения жидкости в канале с боковым сужением. Показано, что коэффициент расхода увеличивается с ростом числа Рейнольдса, приближаясь к постоянному значению при Re ≥ 4000, т.е. наступает автомодельность относительно числа Рейнольдса. The author considers the influences of the forces of viscosity and superficial tension on the discharge ratio in a channel with side narrowing. In the article the equation is presented that takes into account the influence of all the factors: the pressure, the speed of the liquid, liquid density, dynamic viscosity, superficial tension, gravity acceleration, expense per unit of width, width of the course, width of narrowing. Superficial tension and liquid density for the used liquids changed a little.The narrowing in the rectangular tray was achieved by force of flowing liquid between rectangular parallelepipeds, which were attached to the wall of the tray. The dimensions of the rectangular parallelepipeds were: the length L = 200 mm, the width B = 33 mm, and the depth of the mouth b = 34 mm.The findings of the experiment proved that the increase in the Reynolds number causes the increase flow discharge ratio and it approaches the constant value at Re ≥ 4000. |
| Databáze: | OpenAIRE |
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