Journal of Engineering Sciences

Author(s): Sapozhnykov Y.^1*, Zahorulko A.¹, Peczkis G.²

Affiliation(s):
¹ Sumy State University, 2 Rymskogo-Korsakova St., 40007 Sumy, Ukraine;
² Silesian University of Technology, 2A, Academicka St., 44-100 Gliwice, Poland

^*Corresponding Author’s Address: [email protected]

Issue: Volume 9, Issue 2 (2022)

Dates:
Submitted: September 15, 2022
Accepted for publication: December 8, 2022
Available online: December 12, 2022

Citation:
Sapozhnykov Y., Zahorulko A., Peczkis G. (2022). Numerical simulation of 2-way FSI problem of face packing seal: Impact of parameters change. Journal of Engineering Sciences, Vol. 9(2), pp. E12-E27, doi: 10.21272/jes.2022.9(2).e3

DOI: 10.21272/jes.2022.9(2).e3

Research Area:  MECHANICAL ENGINEERING: Computational Mechanics

Abstract. The article is devoted to creating a refined computer model of the face packing seal (FPS) based on the solution of the two-way fluid-structure interaction (2-way FSI) problem. An approach to the average gap was proposed based on the micro-space’s working medium leakage between the friction pair’s roughness elements. Three FPS designs were studied, in which the following operating parameters were alternately changed: inlet pressure, load factor, stuffing box parameters, and friction coefficient. Young’s modulus, Poisson’s ratio, and the thickness of the annular plate at the bottom of the stuffing box were also changed. The model was created considering the actual geometry of the FPS. The shaft rotation was considered by applying the rotation condition on the wall of the fluid model. The calculation was carried out using the ANSYS Multiphysics software. The results of the calculations were presented in the form of graphic dependences with a comparison of the hydrostatic and contact pressure distributions over the friction pair width. The values of the magnitudes of leakage from the changing parameters were presented. Based on the obtained results, an optimal combination of parameters was evaluated for the most efficient design of the FPS.

Keywords: stuffing-box, ANSYS Multiphysics, hydrostatic pressure, contact pressure, process innovation.

References:

1. Kovanova, O. (2018). Climate change modeling in the context of urban decarbonization strategy. Journal of Engineering Sciences, Vol. 5(1), pp. H1-H6, https://doi.org/10.21272/jes.2018.5(1).h1
2. Hurets, L.L., Kozii, I.S., Miakaieva, H.M. (2017). Directions of the environmental protection processes optimization at heat power engineering enterprises. Journal of Engineering Sciences, Vol. 4(2), pp. G12-G16, https://doi.org/10.21272/jes.2017.4(2).g12
3. Martsynkovskyy, V.A. (2005). Hermomechanics, its role in ensuring the efficiency and environmental friendliness of pumping and compressor equipment. Bulletin of Sumy State University, Series “Technical Sciences”, Vol. 1(73), pp. 5-10.
4. Marcinkovsky, V.A., Zagorulko, A.V. (1998). Studies of sealed end seals. Proceedings of International Science and Technology. Conference “Progressive Engine and Technology of Machine Building, Instrument Building and Welding Production”, Vol. 3, pp. 322-327.
5. Löhner, R., Cebral, J.R., Yang, C., Baum, J.D., Mestreau, E.L., Soto, O. (2006). Extending the range and applicability of the loose coupling approach for FSI simulations. Fluid-Structure Interaction, Vol. 53, pp. 82-100, https://doi.org/10.1007/3-540-34596-5_4
6. Zahorulko, A.V. (1999). Research of the processes of friction and sealing in the front oil seal. Mashinoznavstvo, Vol. 8(26), pp. 45-48.
7. Gaft, J., Zahorulko, A., Martsynkovskyy, V., Shevchenko, S. (2000). Face packing seals: new opportunities for pump rotor hermetic sealing. Proceedings of the XVI International Conference “Fluid Sealing. Successful Sealing”, Brugge, Belgium, pp. 335-349.
8. Zahorulko, A., Gudkov, S. (2010). Solution of problem concerning elastohydrodynamic lubrication for friction pair of face packing seal. Proceedings of the XIII International Conference on Sealing Technology, Stuttgart, Germany, pp. 317-326.
9. Bouzid, A.H. (2021). A study on liquid leak rates in packing seals. Applied Sciences, Vol. 11(4), 1936, https://doi.org/10.3390/app11041936
10. Macdonald, I., El-Sayed, M., Mow, K., Dullien, F. (1979). Flow through porous media – The Ergun equation revisited. Ind. Eng. Chem. Fundam., Vol. 18, pp. 199-208.
11. Diany, M., Bouzid, A.H. (2009). Analytical evaluation of stresses and displacements of stuffing-box packing based on a flexibility analysis. Tribology International, Vol. 42(6), pp. 980-986, https://doi.org/10.1016/j.triboint.2009.02.002
12. Diany, M., Bouzid, A.H. (2009). Short term relaxation modeling of valve stem packings. Journal of Tribology, Vol. 131(3), 032201, https://doi.org/10.1115/1.3118787
13. Greenwood, J.A., Williamson, J.B.P. (1966). Contact of nominally flat surfaces. Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 295(1442), pp. 300-319.
14. Zahorulko, A.V. (2001). Research on the Mechanism of Sealing and Development of Methods of Calculation and Design of End Packings of Sealed Rotors of Pumps. Ph.D. Thesis, Sumy State University, Sumy, Ukraine.
15. Cook, R., Malkus, D., Plesha, M., Witt, R. (2002). Concepts and Applications of Finite Element Analysis. John Wiley & Sons, Inc.

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