TGCC mode temperature oscillation power spectra for Region IIa (Fig. 2): (a) Rc/Rsc = 6.68, Grx = 106; (b) Rc/Rsc = 5.0, Grx = 3.81 × 104; (c) Rc/Rsc = 4.0, Grx = 6.19 × 106; (d) Rc/Rsc = 2.5, Grx = 3.85 × 106; (e) Rc/Rsc = 1.29, Grx = 6.19 × 106. Grx = (βg/ν2)ΔTx3, where x is the longitudinal coordinate from the crystal edge to center.

 
 
  Part of: Berdnikov VS (2019) Hydrodynamics and heat exchange of crystal pulling from melts. Part I: Experimental studies of free convection mode. Modern Electronic Materials 5(3): 91-100. https://doi.org/10.3897/j.moem.5.3.46647