Authors & Affiliations
Belyaev I.A.1,2, Luchinkin N.A.1, Listratov Ya.I.1, Zikanov O.3, Pyatnickaya N.Yu.1,2, Novikov A.O.1, Melnikov I.A.1, Sviridov E.V.1
1 Moscow Power Engineering Institute, Moscow, Russia
2 Joint Institute for High Temperatures of Russian Academy of Sciences (JIHT RAS), Moscow, Russia
3 University of Michigan, Dearborn, USA
Belyaev I.A.1,2 – Head of the Laboratory, Cand. Sci. (Tech.). Contacts: build. 2, 13, Izhorskaya str., Moscow, Russia, 125412. Tel.: +7 (495) 484-25-92; e-mail:
Luchinkin N.A.1 – Postgraduate Student.
Listratov Ya.I.1 – Associate Professor, Cand. Sci. (Tech.).
Melnikov I.A.1 – Lead Engineer, Cand. Sci. (Tech.).
Novikov A.O.1 – Lead Engineer, Cand. Sci. (Tech.).
Sviridov E.V.1 – Associate Professor, Dr. Sci. (Tech.).
Pyatnitskaya N.Yu.1,2 – Senior Lecturer, Cand. Sci. (Tech.).
Zikanov O.3 – Professor.
Abstract
The flow of liquid metal in the form of a submerged round jet entering a square channel filled with the same medium in the presence of a transverse magnetic field is experimentally investigated. The range of high Reynolds and Hartmann numbers is considered. The flow velocity is measured using sensors of the difference of electrical potentials arising in a moving electrically conductive liquid. A detailed study of the flow in the cross-section of the channel approximately seven diameters of the jet downstream from the inlet opening allowed us to study the dynamics of the decay of the jet, which even in strong magnetic fields experiences high amplitude oscillations. The geometry of the flow has a decisive influence on the characteristics of jet flows, especially in the case of magnetic-hydrodynamic specificity. The paper considers the effect of the end wall on the formation of the basic laws generalizing the influence of the magnetic field on the flooded jet. A parametric study of the phenomenon under consideration with a smooth change in the jet outflow velocity and the magnitude of the applied magnetic field is performed. The intensity of pulsations of the longitudinal velocity component demonstrates a nonmonotonic dependence on the Stuart number, at the same time a monotonous transformation of the velocity fluctuation energy spectra to two-dimensional turbulence is observed. It is shown that in the absence of an end wall, qualitative and quantitative patterns of flow dynamics in a magnetic field are preserved.
Keywords
liquid metals, experimental studies, hydrodynamics, MHD, probe measurements, transverse magnetic field, turbulence, jet flows, stability
Article Text (PDF, in Russian)
UDC 621.039.6.536.24
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2023, no. 1, 1:20