Velocity and temperature cross-scaling in turbulent thermal convection

نویسندگان

  • Emily S C Ching
  • K W Chui
  • Xiao-Dong Shang
  • Ke-Qing Xia
چکیده

We analyse simultaneous velocity and temperature measurements in turbulent thermal convection. Our results show the existence of a cross-scaling between the normalized velocity and temperature structure functions, as implied by the Bolgiano–Obukhov scaling, at the centre of the convection cell. We find that the cross-scaling exponents are, however, different from the values implied by the Bolgiano–Obukhov scaling. PACS number: 47.27.Te c ©2004 IOP Publishing Ltd PII: S1468-5248(04)80968-6 1468-5248/04/000001+11$30.00 oT 5 (204) 27 Velocity and temperature cross-scaling in turbulent thermal convection

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تاریخ انتشار 2004