Development of a generalized physical and mathematical model of working substance processes in an axial turbine stage

V. A. Kalytka, M. V. Korovkin, P. Sh Madi, A. D. Mekhtiyev, A. V. Bashirov, R. A. Mekhtiev

Research output: Contribution to journalConference articlepeer-review

Abstract

Methods of continuum mechanics and equilibrium thermodynamics are used to study a generalized physical and mathematical model of the processes of a working substance (steam, gas) moving in the flow part of an axial turbine stage in the nominal operating mode of the turbine. The mathematical description of the hydrodynamics and thermodynamics of the process is carried out for a one-dimensional model, based on the energy equation in thermomechanical form (the first law of thermodynamics in combination with the Bernoulli equation) for the gas (or steam) flow during its adiabatic (isentropic) expansion in the direction of the axis of the turbine stage. The energy equation is written taking into account both thermodynamic (due to the thermal movement of particles) and hydraulic pressure forces (due to the mechanical action of a continuous medium) of the working substance flow on the walls of the stage flow channel. Numerical calculation of flow rates and enthalpy losses on various elements of the stage (nozzle and working blades) is performed on the example of a model turbine with eight axial-type stages, under specified initial conditions of the process.

Original languageEnglish
Article number012017
JournalJournal of Physics: Conference Series
Volume1843
Issue number1
DOIs
Publication statusPublished - 19 Mar 2021
Event10th International Scientific and Practical Conference Information and Measuring Equipment and Technologies, IMET 2020 - Tomsk, Virtual, Russian Federation
Duration: 24 Nov 202026 Nov 2020

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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