Hydraulic and gas-dynamic models of a steam-water mixture flow in a granular bed

Статья конференции

Tairov E.A., Khan P.V.

Журнал: Journal of Physics: Conference Series

3th Siberian Thermophysical Seminar, STS 2019

Journal of Physics: Conference Series. Vol.1382. No.1. ID: 012101.

2019

The paper presents a comparative analysis of the hydraulic and gas-dynamic models of a steam-water mixture flow through a granular bed. The analysis is carried out using experimental data obtained at an inlet pressure of 0.6 - 15.5 MPa, flow quality of 0.002 - 0.3, and mass velocity through a cross-section of a packed bed from 44.5 to 410 kg/(m2s). In the hydraulic model, with a view to improving the accuracy, the algebraic calculation of an average pressure is replaced with numerical integration over the bed height. In the gas-dynamic model, which allows analytical integration, refined constitutive relations are proposed. An analysis of the obtained results indicates that the gas-dynamic model provides a good description of experimental data, whereas the hydraulic model leads to a considerable error in calculation in the case of large relative pressure drops. © 2019 Published under licence by IOP Publishing Ltd.

Библиографическая ссылка

Tairov E.A., Khan P.V. Hydraulic and gas-dynamic models of a steam-water mixture flow in a granular bed // Journal of Physics: Conference Series. Vol.1382. No.1. ID: 012101. 2019. DOI: 10.1088/1742-6596/1382/1/012101

gas dynamics