Abstract
Turbulence intensity and energy spectra were investigated experimentally in mercury flows in a 2 × 4.8 cm2 rectangular cross section duct subjected to a transverse magnetic field. Velocity fluctuations were measured by means of a quartz coated hot film probe at Re = 78.5 × 103 and 0 ≦ Ha ≦ 785. The results obtained made possible a number of conclusions related to turbulence suppression and structure changes and to energy transfer mechanisms.
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Abbreviations
- B :
-
magnetic field induction
- D :
-
hydraulic diameter of the channel's cross section
- Ha = BD(σ/ϱν)1/2 :
-
Hartmann number
- N = σB 2 D/ϱU :
-
Stuart number (interaction parameter)
- Re = UD/ν:
-
Reynolds number
- k :
-
wave number
- U :
-
mean velocity
- u′:
-
velocity fluctuation
- ε:
-
energy transfer rate
- ν:
-
kinematic viscosity
- σ:
-
electrical conductivity
- ϱ:
-
density
References
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Sukoriansky, S., Zilberman, I. & Branover, H. Experimental studies of turbulence in mercury flows with transverse magnetic fields. Experiments in Fluids 4, 11–16 (1986). https://doi.org/10.1007/BF00316780
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DOI: https://doi.org/10.1007/BF00316780