ACOUSTIC FIELD IN UNSTEADY MOVING MEDIAy
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چکیده
D of point P in a meridian plane for an accelerating, decelerating and accelerating supersonic speed starting from rest at = 0. The subsonic and supersonic intervals are 0; 1) and (1; 5] with the deceleration in (1:7; 3:05). The critical curve J has a local maximum at point K 1 , a minimum at K 2 and then a maximum at K 3. The curve J partitions D into
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