Chord length computation

Determination of the Average Chord Length. The average chord length p can be determined even from scattering data that are not calibrated. For this purpose Ap is determined from Porod s law in relative units and k is computed by integration of the scattering curve. Finally ip is found from Eq. (8.43). 

Kowal [4] presented charts that allow designers to determine the volume of vessels for different dimensions. In addition, parameters for tray designs and tray layout in distillation columns, such as chord length and circle area, are computed in this chapter. 

Cp cannot be expressed in closed form, but is derived from a computational solution of the dimensionless equations for mass, momentum, and energy, where the fluid properties are governed by the ideal gas equation of state. In Eqs. (15)-(17), x is the location c is the chord length M is the Mach number a is the angle of attack 8 is the airfoil thickness ratio T is the temperature, where wu is the upper wall, wl is the lower wall, and oo is the free stream represents a dimensionless variable A is the thickness function m is a surface determinant, and equals -hi for the upper surface and — 1 for the lower surface w is the camber line is a function of the Mach number such that = 1 and A is a function of the nose radius of cur-... 

Exercise. Compute the probability distribution of the length of the chord in the three cases of Bertrand s example. 

The data processing makes it possible to determine the number of bubbles and their distribution by size from the length of their chords, calculated by the computer. Statistical methods, developed by Weibel [58] and Kawakmi et al. [59] are employed to transform the distribution by chords to distribution by bubble diameter. 

This can be computed from line lengths on the upper diagram of Fig. 10.28 or from the slope of a chord on the lower diagram, as shown. The external reflux ratio is... 

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