Academic Journal
SIMULATION OF A WELL JET PUMP WORKING PROCESS ; МОДЕЛЮВАННЯ РОБОЧОГО ПРОЦЕСУ СВЕРДЛОВИННОГО СТРУМИННОГО НАСОСА
| العنوان: | SIMULATION OF A WELL JET PUMP WORKING PROCESS ; МОДЕЛЮВАННЯ РОБОЧОГО ПРОЦЕСУ СВЕРДЛОВИННОГО СТРУМИННОГО НАСОСА |
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| المؤلفون: | Паневник, Денис Олександрович |
| المصدر: | Bulletin of the National Technical University "KhPI". Series: Hydraulic machines and hydraulic units; No. 2 (2023): Bulletin of the National Technical University "KhPI". Series: Hydraulic machines and hydraulic units; 49-55 ; Вісник Національного технічного університету "ХПІ". Серія: "Гідравлічні машини та гідроагрегати"; № 2 (2023): Вісник Національного технічного університету "ХПІ". Серія: "Гідравлічні машини та гідроагрегати" ; 49-55 ; 2523-4471 ; 2411-3441 |
| بيانات النشر: | National Technical University "Kharkiv Polytechnic Institute" |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | well jet pump, ejection system, potential flows, hydrodynamic functions, complex potential, shifted leakage function, equipotential lines, streamlines, свердловинний струминний насос, ежекційна система, потенціальні потоки, гідродинамічні функції, комплексний потенціал, зміщена функція витоку, еквіпотенціальні лінії, лінії течії |
| الوصف: | A mathematical model of the movement of the working flow in the flow part of the jet pump was developed based on the use of a radial function of a complex variable with a shifted leakage center. According to the accepted model, the working fluid radially asymmetrically exits from the displaced leakage center in all directions. The distance to the center of the leak has an inverse effect on the rate of spread of the working fluid. The offset turn of the radial function allows you to take into account the misalignment of the working nozzle and the mixing chamber due to poor manufacturing of jet pump parts. The vector of the complex potential with a shifted origin is defined as the difference of vectors whose origin is at the center of coordinates, and the endpoints characterize the initial and final positions of the shifted function. Using the equation of the potential of velocities and the stream function, the relationship for the complex potential of the plane-radial and spatial working flow with one-way and two-way displacement of the leakage center is obtained. The kinematic picture of the movement of the working medium is determined by a spatial hydrodynamic grid formed by equipotential surfaces and flow surfaces of leakage functions, which has the form of orthogonally placed coaxial spheres and radial meridional planes. The leakage displacement determines the deviation of the axis of the working nozzle from the axis of the displacement chamber of the jet pump. It is established that the velocity profiles of the radial flow with a displaced leak lose their similarity and the series of kinematic curves cannot be replaced by a single dimensionless dependence that would determine the flow kinematics regardless of the distance between the leak point and the inlet cross- section of the mixing chamber of the jet pump. The displacement of the leakage center has an inverse effect on the radial flow rate and decreases with increasing distance to the mixing chamber. As the value of the leakage displacement increases, ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | Ukrainian |
| Relation: | http://gm.khpi.edu.ua/article/view/297283/290215; http://gm.khpi.edu.ua/article/view/297283 |
| DOI: | 10.20998/2411-3441.2023.2.07 |
| الاتاحة: | http://gm.khpi.edu.ua/article/view/297283 https://doi.org/10.20998/2411-3441.2023.2.07 |
| Rights: | Авторське право (c) 2024 Денис Олександрович Паневник |
| رقم الانضمام: | edsbas.1315C8A1 |
| قاعدة البيانات: | BASE |
| DOI: | 10.20998/2411-3441.2023.2.07 |
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