Empirical, equation group frequency

Btu/hr/ft /°F, with Reynolds numbers varying from 172 to 14,000. The frequency of the bubbles varied between 200 to 2500 cps. Empirical equations for the Nusselt number as function of the Peclet and Strouhal numbers are given (B2) for the three different bubble groups. [Pg.263]

This landmark semi-empirical equation, with different constants for different groups, was used to develop relationships between infrared frequency shifts and heats of interaction. [Pg.671]

When the relaxation frequencies were plotted as a function of the reciprocal temperature, a nonlinear WLF curve of the a-relaxation was obtained for polymers SOP, SOP, and 65P (Figure 2a). Moreover, the relaxation frequency was increased with increasing mesogenic group content, due to the increase of the plasticizer effect. The temperature dependence of the relaxation times has been described by the empirical Williams-Landel-Ferry (WLF) equation (7-8,16)... [Pg.194]

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