CFD Techniques and Energy Applications by Zied Driss Brahim Necib & Hao-Chun Zhang

Author:Zied Driss, Brahim Necib & Hao-Chun Zhang
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Stator throat area (mm2)

3300

A/R for ψ = 0°

33

In fact, the volute cross sections have approximately non-symmetrical trapezoidal shapes which are drawn by means of the radial based method. Figure 2a shows the distribution of the ratio of the cross-sectional area to its centroid radius as a function of the volute azimuthal angle.

Fig. 2Volute geometrical parameters

However, Fig. 2b illustrates an example of the cross-sectional shape for 0° of the azimuth angle. In addition, an inlet duct having 400 m of length is used for the volute flow entry. In order to visualize flow parameter contours, different transverse and cross-sectional planes were defined as shown in Fig. 3.

Fig. 3Different defined visualization planes

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