The blade of a gas turbine engine contains internal cooling passages, as shown in Fig. 9.25. Compute the volume flow rate of air required to produce an average velocity of flow in each passage of 25.0 m/s. The air flow distributes evenly to all six passages. Then, compute the Reynolds number if the air has a density of 1.20 kg/m3 and a dynamic viscosity of 1.50 × 10–5 Pa•s.
FIGURE 9.25
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