PT - JOURNAL ARTICLE AU - Luxa, Martin AU - Synac, Jaroslav AU - Safarik, Pavel AU - Simurda, David TI - Causes and Solution of Aperiodicity of Supersonic Flow Field Downstream of a Profile Cascade DP - 2012 Dec 31 TA - Communications - Scientific Letters of the University of Zilina PG - 23--28 VI - 14 IP - 11 AID - 10.26552/com.C.2012.4A.23-28 IS - 13354205 AB - The paper deals with problems of transonic flow field periodicity downstream of a profile cascade with finite number of blades. The origin of phenomena generating this aperiodicity in transonic wind tunnel is described. The solution of this problem by means of adjustable perforated tailboard is documented by results of optical measurements (interferometry, schlieren methods) on a turbine profile cascade consisting of six blades only. The conditions of formation of limit load regime are described.