电邮这篇文章 Flow dynamics in the radial-annular cavity of turbomachines
- 作者: Kishkin A.A.1, Shevchenko Y.N.1
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隶属关系:
- Reshetnev Siberian State University of Science and Technology
- 期: 卷 21, 编号 3 (2020)
- 页面: 377-381
- 栏目: Section 2. Aviation and Space Technology
- URL: https://journals.eco-vector.com/2712-8970/article/view/562955
- DOI: https://doi.org/10.31772/2587-6066-2020-21-3-377-381
- ID: 562955
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This paper considers the problem of modeling a rotational flow in the radial-annular cavity of turbo machines with fixed walls. This case corresponds to the boundary conditions of the supply channel for a radial centripetal turbine. In the presented model, the flow is conventionally divided into radial and circumferential movement. The radial component of the velocity is determined by the mass flow rate from the continuity equation, the circumferential component is formed by the tangential channel supply. The main equation in the integration is the equation of the change in the momentum for the flow in the form of the Euler equation. In the case of the circumferential component of the velocity, the angular momentum law is used, assuming the potentiality of the flow and the constancy of the angular momentum within the integration step. As a result of the transformations of the motion equations, differential equations for the radial, circumferential component of velocity and static pressure are obtained, which represent a certain system of three equations in three unknowns. The system of equations allows integration under known boundary conditions at the inlet; as a result of integration, it is possible to obtain the field of distributions of velocities and pressures along the radius of the radial-annular cavity. The results of the study can be used in modeling the circumferential and radial forces on the rotor (impeller) of turbo machines.
作者简介
Alexander Kishkin
Reshetnev Siberian State University of Science and Technology
编辑信件的主要联系方式.
Email: spsp99@mail.ru
Dr. Sc., professor, head of the Department of refrigeration, cryogenic engineering and conditioning; Reshetnev Siberian State University of Science and Technology
俄罗斯联邦, 31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037Yulia Shevchenko
Reshetnev Siberian State University of Science and Technology
Email: gift_23j@mail.ru
head of the laboratories of the Department of refrigeration, cryogenic engineering and conditioning; Reshetnev Siberian State University of Science and Technology
俄罗斯联邦, 31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037参考
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