Математичні моделі дросельних елементів газогідродинамічних вимірювальних перетворювачів

2019;
: с. 94 – 107
https://doi.org/10.23939/jeecs2019.02.094
Надіслано: Лютий 01, 2019
Переглянуто: Квітень 02, 2019
Прийнято: Серпень 27, 2019
1
Національний університет «Львівська політехніка»
2
Національний університет «Львівська політехніка»
3
Національний університет «Львівська політехніка»

В статті наведені витратні характеристики дросельних елементів, які застосовують у вимірювальних схемах перетворювачів параметрів плинних середовищ. Огляд включає широке коло досліджень характеристик нестискуваних та стискуваних, ньютонівських та неньютонівських середовищ в умовах ламінарного, перехідного та турбулентного режиму руху в каналах різного поперечного перерізу. Розглянуто рівняння, що застосовуються для макроскопічних потоків. Наведено теоретичні рівняння для розрахунку перепаду тиску під час руху середовищ у мікроканалах та зазначено умови та діапазон їх застосування. Розглянуто експериментальні результати дослідження коефіцієнтів тертя для стискуваних і нестискуваних середовищ в мікроканалах різних розмірів та форми, з гладкими і шорсткими поверхнями. Отримані результати можна застосовувати для комп’ютерного дослідження статичних і метрологічних характеристик газогідродинамічних вимірювальних перетворювачів конкретних фізико-механічних параметрів.

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Y. Pistun, H. Matiko, H. Krykh. Mathematical models of throttle elements of gas-hydrodynamic measuring transducers. Energy Engineering and Control Systems, 2019, Vol. 5, No. 2, pp. 94 – 107. https://doi.org/10.23939/jeecs2019.02.094