МОДЕЛИРОВАНИЕ ПРОЦЕССА ИЗМЕРЕНИЯ РАСХОДА ПУЛЬСИРУЮЩЕГО ПОТОКА ЖИДКОСТИ ЧЕРЕЗ РАСШИРЯЮЩЕЕ УСТРОЙСТВО

В статье представлены результаты моделирования расходомера переменного перепада давлений с преобразователем расхода в виде расширяющего устройства, который выполняет измерение расхода потока пульсирующей жидкости. В статье описан метод получения основных модифицированных уравнений для описания моделей и представлена структура преобразователя расхода. В качестве такого расширяющего преобразователя расхода в работе используется конический диффузор. В работе получена модель такого расходомера и исследованы факторы, влияющие на процесс измерения пульсирующего расхода жидкости. Дана оценка неопределенности результатов измерения пульсирующего расхода с помощью подобного преобразователя. Исследованы факторы, влияющие на точность измерения расхода.

1. Addison P.S., Ervine D.A., Chan A.H.C. and K.J. Williamsю An experimental investigation into the breakdown of low Reynolds number pulsed flows at a pipe orifice, Journal of Fluids Engineeringб 1997, vol. 119, pp. 347–353.

2. Doblhoff-Dier K., Kudlaty K., Wiesinger M. and M. Gröschl. Time resolved measurement of pulsating flow using orifices, Flow Measurement and Instrumentation, 2011, vol. 22, pp. 97–103.

3. Gajan P., Mottram R.C., Hebrard P., Andriamihafy H. and B. Platet. The influence of pulsating flows on orifice plate flowmeters, Flow Measurement and Instrumentation, 2011, vol. 3, pp. 118–129.

4. Shemer L., Wygnanski I. and E. Kit. Pulsating flow in a pipe, J. Fluid Mech., 1985, vol. 153, pp. 313–337.

5. Yakhot A., Grinberg L. and N. Nikitin. Simulating Pulsatile Flows Through a Pipe Orifice by an Immersed-Boundary Method, Journal of Fluids Engineering, 2004, vol. 126, pp. 911–918.

6. M.N.E. Reis and S. Hanriot. Incompressible pulsating flow for low Reynolds numbers in orifice plates, Flow Measurement and Instrumentation, 2017, vol. 54, pp. 146–157.

7. Daev Zh.A. A Method for the Measurement of a Pulsating Flow of Liquid. Measurement Techniques, 201, vol. 59, pp. 243–246.

8. Dayev Zh.A. Theoretical modelling of natural gas unsteady flow rate measurement using variable differential pressure method, Flow Measurement and Instrumentation, 2018, vol. 62, pp. 33–36.

9. Evgenidis S.P. and T.D. Karapantsios. Increase of gas–liquid interfacial area in bubbly flows by pulsating flow conditions, Chemical Engineering Journal, 2018, vol. 486, no.150107.

10. Zhou L., Gao T., Wang Y., Wang J., Gong J. and J. Li. Large eddy simulation of enhanced heat transfer in grooved channel with pulsating flow corresponding to hydrodynamic frequency, International Journal of Heat and Mass Transfer, 2024, vol. 218, no. 124822.

11. Brahma I. and S. Singh. Experimental, numerical and deep learning modeling study of heat transfer in turbulent pulsating pipe flow, Applied Thermal Engineering, 2024, vol. 244, no.122685.

12. Matsubara K., Mitsuishi A., Iwamoto K. and A. Murata. Prediction of pulsating turbulent pipe flow by deep learning with generalization capability, International Journal of Heat and Fluid Flow, 2023, vol. 104, no.109214.

13. Altunkaya A.N., Aydin O. and M. Avci. Pulsating non-Newtonian heat and fluid flow in a concentric annular duct: An analysis using perturbation series method, International Communications in Heat and Mass Transfer, 2024, vol. 154, no. 107417.

14. Ren W., Zhang X., Zhang Y. and X. Lu. The impact of pulsating parameters on particle dynamics in vertical pipe during hydraulic conveying with pulsating inlet flow, Powder Technology, 2024, vol. 438, no. 119655.

15. Daev Zh.A. The use of a step-down diffuser as a flow transducer, Measurement Techniques, 2013, vol. 56, pp. 426–428.

16. Dayev Z.A. and A.K. Kairakbaev. Modeling of coefficient of contraction of differential pressure flowmeters, Measurement Techniques, 2019, vol. 66, pp. 128–131.

17. Landau L.D., Lifshitz E.M. Theoretical Physics, Hydrodynamics, vol. 6. (Moscow: Nauka Publishing House,1986), p. 736. [in Russian]

18. Dayev Z., Shopanova G., Toksanbaeva B., Yetilmezsoy K., Sultanov N., Sihag P., Bahramian M. and E. Kiyan. Modeling the flow rate of dry part in the wet gas mixture using decision tree/kernel/non-parametric regression-based soft-computing techniques, Flow Measurement and Instrumentation, 2022, vol. 86, no.102195.

19. Reader-Harris M.J. Orifice Plates and Venturi Tubes (Glasgow: Springer International Publishing Switzerland, 2015), p. 389.

20. Kremlevskii P.P. Flowmeters and Counters of the Quantity of Substances: Handbook (Leningrad: Mashinostroenie Publishing House, 1989), p. 701. [in Russian]

21. Golubev A.Yu. and G.A. Potemkin. Features of the structure of pressure pulsation fields in the vicinity of poorly streamlined bodies (cylinders), Izvestiya RAS. Mechanics of liquid and gas, 2016, vol. 4, pp. 59–66.