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  5. VOL 47, NO 4 (2025)
  6. pp. 03-20

Organization of the Structure of Heterogeneous Input Data in Modeling Hydraulic Processes in Compressible and Incompressible Fluid Networks

S.D. Vynnychuk

Èlektron. model. 2025, 47(4):03-20

https://doi.org/10.15407/emodel.47.04.003

ABSTRACT

Ensuring high accuracy of modeling hydraulic processes in compressible and incompressible fluid networks is assumed to be possible if process models are used in the structural elements that form the network. A wide variety of such elements characterizes hydraulic networks and, accordingly, process models within them, where each model is characterized by its parameters. Therefore, model-oriented input data may be different in meaning and volume, i.e., heterogeneous. For such heterogeneous information, it is proposed to structure it based on arrays of data on elements of branches and nodes based on the use of a fixed number of numbers equal to three, where, in the case of several parameters exceeding 3, references are made to the corresponding data sets presented in separate files or tables. It has been determined that this method allows for the modeling of hydraulic processes in the class of hydraulic networks, for which the program code implements the capabilities of modeling hydraulic processes in elements of branches, nodes, and processing of structural and operational information. In this context, it is universal, where, when using elements for which additional data is required to be obtained in the corresponding arrays (tables), they can be supplemented without changing the code of the software application, and the capabilities of the software can be expanded by adding new types of elements, which requires the inclusion of mathematical models of processes in them in the program code.

KEYWORDS

hydraulic network, heterogeneous data, structural, structural experimental, mode input data.

REFERENCES

  1. Yevdokimov A.G., Tevyashev A.D. & Dubrovskiy V.V. (1990), Modelling and optimization of load flow in engineering networks, 2nd ed., revised. and ext., Stroyizdat, Moscow, Russia. 368 р.
  2. Merenkov A.P. and Khasilev V.Ya. (1985). Theory of hydraulic circuits. Nauka, Moscow, Russia. 280 p.
  3. Nekrasov B.B. (1967), Hydraulics and its application on aircraft. Mashinostroenie, Moscow, Russia. 352 p.
  4. Abramovich G.N. (1969). Applied gas dynamics. 3rd ed., revised. Nauka, Moscow, Russia. 824 р.
  5. Idelchik I.E. (1975) Hydraulic resistances. Mashinostroenie, Moscow, Russia. 559 p.
  6. Krumina N.N., Ulyanov I.E. et al. (1979). Design of air ducts for aircraft power plants. Mashinostroenie, Moscow, Russia. 96 p.
  7. Vynnychuk S.D. Modeling of hydraulic network tees. / Collection of Scientific Works of the IPME NAS of Ukraine. 2001, issue 14. Kyiv: IPME NAS of Ukraine. P.73-80
  8. Vynnychuk S.D., Kozyuk O.I. All-mode model of hydraulic processes in ejectors // Modeling and information technologies/ Collection of Scientific Works of the IPME NAS of Ukraine. 2019, issue 89. Pp.40-44 http://doi.org/10.5281/zenodo.3860728
  9. Handbook of heat exchangers: in 2 volumes. T.1 / Trans. with English, edited by B.S. Pe­tukhova, V.K. Shykova. (1987) Energoatomizdat, Moscow, Russia. 560 p. with ill.
  10. Handbook of heat exchangers: in 2 volumes. Vol. 2 / Translated from English, edited by O.G.Martynenko et al. (1987). Energoatomizdat, Moscow, Russia. 352 p. with ill.
  11. Vynnychuk S.D. Modeling of processes in a heat exchanger with a small amount of expe­rimental data. /Collection of scientific works of IPME NAS of Ukraine. 2001, issue 13. pp. 86-91

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