Static calculation of the dynamic deflection elements for separation devices | Журнал інженерних наук Журнал инженерных наук Journal Of Engineering Sciences

Static calculation of the dynamic deflection elements for separation devices

Author(s): Pavlenko I. V.1*, Liaposhchenko O. O.1, Demianenko M. M.1, Starynskyi O. Ye.1

Affilation(s): 1Sumy State University, 2 Rymskogo-Korsakova St., 40007, Sumy, Ukraine

*Corresponding Author’s Address:

Issue: Volume 4; Issue 2 (2017)

Paper received: September 14, 2017
The final version of the paper received: December 2, 2017
Paper accepted online: December 4, 2017

Pavlenko I. V. Static calculation of the dynamic deflection elements for separation devices / I. V. Pavlenko, O. O. Liaposhchenko, M. M. Demianenko, O. Ye. Starynskyi // Journal of Engineering Sciences. —  Sumy : Sumy State University, 2017. — Volume 4, Issue 2. — P. B19-B24.

DOI: 10.21272/jes.2017.4(2).b19

Research Area: Investigation of Operating Processes in Machines and Devices

Abstract: The following paper considers the influence of acoustic oscillations on multiphase flows on their suspended particles, which can be destroyed or coagulated by vibrations. Considering this, the method of extension of application range of the dynamic separation element as vibrocoagulants due to the use of hydroaeroelasticity phenomena, namely flutter, has been proposed. There were considered the problems of development an engineering method for calculating dynamic separation elements, the main of which is the analytical solution of the hydro-aeroelasticity problem. This work takes the first step to its development, considering the previous elastic elements deformation that has a significant effect on the flutter frequency. The state of their static equilibrium was conducted with the use of analytical dependencies of the finite element method. The bimodal finite elements with six degrees of freedom were used for dynamic deflection elements. As the result, there was determined the stiffness of pre-deformed plates and their maximum and minimum possible deflections. The functions of the median surface deflection in the form of a cubic polynomial were used in the model. In particular, there were considered the peculiarities of numerical modelling of coupled problems of gas-hydrodynamics flows and structural dynamics using the ANSYS Workbench, namely Fluent Flow and Transient Structural modules, which are combined with System Coupling. Also, the peculiarities of different approaches to multi-phase flow modelling are indicated. They are interesting not only by distribution of particles in the stream core, but also by the entrapped liquid film motion on the deposition surfaces.

Keywords: gas-liquid flow, hydroaeroelasticity, preloading scheme, static load, stiffness matrix, wall film, boundary conditions, column vector, displacement.


  1. Liaposhchenko, O. O., Sklabinskyi, V. I., Zavialov, V. L., Pavlenko, I. V., Nastenko, O. V., & Demianenko, M. M. (2017). Appliance of Inertial Gas-Dynamic Separation of Gas-Dispersion Flows in the Curvilinear Convergent-Divergent Channels for Compressor Equipment Reliability Improvement. IOP Conference Series: Materials Science and Engineering, Vol. 233. DOI:
  2. Liaposhchenko, O. O., Pavlenko, I. V., Nastenko, M. M., Usyk, R. Yu., & Demianenko, M. M. (2015). Sposib vlovlyuvannya vysokodyspersnoyi kraplynnoyi ridyny z hazoridynnoho potoku [The method of capturing highly dispersed dropped liquid from the gas-liquid flow]. Certificate of the authorship, Ukraine, No. 102445 U, B01D 45/04 (2006.01). Sumy, Sumy State University, No. u201505124, bulletin No. 20 [in Ukrainian].
  3. Liaposhchenko, O. O., Nastenko, M. M., Pavlenko, I. V., et al. (2016). Sposib vlovlyuvannya vysokodyspersnoyi kraplynnoyi ridyny z hazoridynnoho potoku [The method of capturing highly dispersed dropped liquid from the gas-liquid flow]. Certificate of the authorship, Ukraine, No. 111039 U, B01D 45/00 (2006.01). Sumy, Sumy State University, No. u201605061, bulletin No.20 [in Ukrainian].
  4. Sloboda, O., Korba, P., Hovanec, M., & Pila, J. (2016). Numerical approach in aeroelasticity. Scientific Journal of Silesian University of Technology. Series Transport, Vol. 93, 115–122. DOI:
  5. Afanasyeva, I. N., & Lantsova I. Yu. (2017). Numerical simulation of an elastic structure behavior under transient fluid flow excitation. Investigation of aerodynamic instability of a thin plate. MATEC Web of Conferences, Vol. 117, article No. 00099.
  6. Zahed, P., Zhang,J.; Arabnejad,H., McLaury,B. S., & Shirazi,S. A. (2017). CFD simulation of multiphase flows and erosion predictions under annular flow and low liquid loading conditions.WEAR, Issue 376, 1260–1270. DOI:
  7. Yao, J., Yao, Y. F., Arini, A., Mciiwain, S., & Gordon, T. (2016). Modelling air and water two-phase annular flow in a small horizontal pipe. Proceedings of the sixth international symposium on physics of fluids (ISPF6). International Journal of Modern Physics-Conference Series, Issue 42. DOI:
  8. Liaposhchenko, О., Nastenko, O., Pavlenko, I. (2017). The model of crossed movement and gas-liquid flow interaction with captured liquid film in the inertial-filtering separation channels. Separation and Purification Technology, Vol. 173, 240–243.
  9. Nastenko, O., Liaposhchenko, O., et al. (2016). Mathematical modelling of separation process by coupled heat transfer in the inertial-filtering gas separator-condenser. Inżynieria i Aparatura Chemiczna, No. 2, 62–63.
  10. Karintsev, I. B., & Pavlenko, V. (2017). Hydroaeroelasticity: a textbook. Sumy, Sumy State University.
  11. Brittle, S., Desai, P., Ng, W. C., Dunbar, A., Howell, R., Tesar, & Zimmerman, W. B. (2015). Minimising microbubble size through oscillation frequency control. Chemical engineering research & design, Issue 104, 357–366. DOI:
  12. Wu, Y. R., & Wang, C. H. (2017). Theoretical analysis of interaction between a particle and an oscillating bubble driven by ultrasound waves in liquid. Chinese physics B, Volume 11, Issue 26, No. 114303. DOI:
  13. Go, B., Atashbar, M. Z., Ramshani, Z., & Chang, H. C. (2017). Surface acoustic wave devices for chemical sensing and microfluidics: a review and perspective. Analytical methods, Volume 28, Issue 9, 4112–4134. DOI:
  14. Pavlenko, V. (2006). Finite element method for the problems of strength of materials and linear theory of elasticity. Sumy : Sumy State University [in Russian].
  15. Liaposhchenko, O. O., Demianenko, M. M., Lytvynenko, O. V., Ivanov V. O., Ostroga, R. O., Lytvynenko, A. V., Pavlenko, I. V., & Dehriarov, I. M. (2017). Development and implementation of energy efficient modular separation devices for oil and gas purification equipment. Sumy, Sumy State University, No. 15.01.06-01.17/20.ZP, 2017, State Reg. 0117U003931.

Full Text

Научный журнал "Журнал инженерных наук"
ISSN 2414-9381 (Online), ISSN 2312-2498 (Print).

Факультет технических систем и энергоэффективных технологий
Сумского государственного университета