FIELD: flowmeters with Coanda effect. SUBSTANCE: radiator includes fluidal entrance with inlet hole tailored to form two-dimensional jet of fluid medium varying in lateral direction with regard to symmetry plane, radiator chamber communicating with inlet hole and obstacle in radiator chamber having frontal part where main cavity facing inlet hole is formed. Two spaces where vortexes are created between frontal part of obstacle and wall of radiator chamber on side of inlet hole on different sides of main part. Radiator is fitted with aid that changes radial extent of vertexes in function of parameters of jet of fluid medium. EFFECT: enhanced operational characteristics of flowmeters. 19 cl, 13 dwg
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