MHD turbulence measurements in a sodium channel flow exposed to a transverse magnetic field

✍ Scribed by S Eckert; G Gerbeth; W Witke; H Langenbrunner

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 336 KB
• Volume: 22
• Category: Article
• ISSN: 0142-727X
• DOI: 10.1016/s0142-727x(01)00099-6

✦ Synopsis

The in¯uence of a static transverse magnetic ®eld on a turbulent sodium ¯ow in a channel with a rectangular cross-section is investigated. The turbulence has been forced by mechanical means employing a grid of cylindrical bars. Electric potential probes have been used to determine the longitudinal component of the liquid velocity. The experiments cover a wide range of the nondimensional parameters Hartmann number (Ha 6 3000) and the magnetic interaction parameter (N 6 800). Measurements of the turbulence intensity as a function of the magnetic interaction number N will be presented and discussed. The measured spectra are essentially dierent from those predicted according to the theory of two-dimensional turbulence.