TY - JOUR

T1 - Approach to the laboratory modeling of the velocity distribution behind a hydro-turbine runner. 2. Verification of the method

AU - Ustimenko, A. S.

AU - Litvinov, I. V.

AU - Sonin, V. I.

AU - Shtork, S. I.

AU - Kuibin, P. A.

AU - Semenova, A. V.

N1 - This work was supported by the Russian Science Foundation (Project code 21-79-10080) and by the state task of the Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences (the preparation of infrastructure and equipment, Project code 121031800229-1). Публикация для корректировки.

PY - 2023/4

Y1 - 2023/4

N2 - This paper describes an approach to modeling the flow velocity distribution at the inlet of the hydro turbine draft tube that can significantly reduce test costs. The flow is modeled using a special swirler consisting of a combination of two blade rows: fixed and rotating. The previously proposed method for designing swirlers to generate velocity fields corresponding to the velocity distributions behind real hydro turbines was used to design eight blade rows modeling the velocity distributions in optimal operating modes of hydro turbines of various types. This paper presents a test numerical calculation of the flow parameters using Ansys code and a comparison of design velocity distributions with experimental velocity profiles obtained on an aerodynamic rig using a laser Doppler anemometer. The design, calculated, and experimental flow velocity profiles at the draft tube inlet are shown to be in satisfactory agreement. Thus, the promising approach to the experimental modeling of hydro turbine flow was successfully tested.

AB - This paper describes an approach to modeling the flow velocity distribution at the inlet of the hydro turbine draft tube that can significantly reduce test costs. The flow is modeled using a special swirler consisting of a combination of two blade rows: fixed and rotating. The previously proposed method for designing swirlers to generate velocity fields corresponding to the velocity distributions behind real hydro turbines was used to design eight blade rows modeling the velocity distributions in optimal operating modes of hydro turbines of various types. This paper presents a test numerical calculation of the flow parameters using Ansys code and a comparison of design velocity distributions with experimental velocity profiles obtained on an aerodynamic rig using a laser Doppler anemometer. The design, calculated, and experimental flow velocity profiles at the draft tube inlet are shown to be in satisfactory agreement. Thus, the promising approach to the experimental modeling of hydro turbine flow was successfully tested.

KW - draft tube

KW - experimental modeling

KW - hydro turbine

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85160947754&origin=inward&txGid=66618160f44ce3616a67d2fcf68980f3

UR - https://www.mendeley.com/catalogue/0d560364-4dcc-39a9-979d-c6d345e13d15/

U2 - 10.1134/S0021894423020037

DO - 10.1134/S0021894423020037

M3 - Article

VL - 64

SP - 190

EP - 197

JO - Journal of Applied Mechanics and Technical Physics

JF - Journal of Applied Mechanics and Technical Physics

SN - 0021-8944

IS - 2

ER -