A-4 そり角の大きい多重円弧翼形の遷・超音速二次元(減速)翼列実験 : 第4報・節弦比の影響(1)

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We carried out 2-D cascade tests of multiple-circular-arc (MCA) blades with a relatively high camber angle of 56 deg. in the region of inlet Mach number(M_1) 0.4≦M_1≦1.2, and with systematic variations of cascade geometry and incidence angle. Systematic data with respect to inlet Mach number characteristics of the cascade of MCA blades were obtained. We discussed the effect of inlet Mach number on the relation ship between incidence angle and parameters of cascade performance (incidence angle characteristics) in the 3rd report. In the present report, we discuss the following on the basis of experimental results. 1. the effect of space/chord ratio on inlet Mach number characteristics. 2. the effect of space/chord ratio on the relation ship between incidence angle and parameters of cascade performance (incidence angle characteristics) 3. the effect of space/chord ratio on the relation ship between stall incidence angle, reference incidence angle 4. the relation ship between incidence angle and critical Mach number in the set of space/chord ratio of 0.4, 0.6. 0.8
公益社団法人日本ガスタービン学会の論文
1990-10-20