The influence of the impeller design features on the combined operating process of the torque-flow pump

Purpose. Evaluation of the effect changing width impeller blades on characteristics a torque-flow pump. Searching for optimal blade extension into free chamber A pump “Turo” type SVN 500/32 was chosen as subject research work. Methodology. number numerical experiments were conducted to determine flow structure in flowing part The variable. Numerical carried out using ANSYS CFX software package. integral parameters researched determined order build characteristics. Findings. general and toroidal vortex studied analyzed model built pumps with basic modernized design. relationship between change found. changed range from min = -20 max +100 mm. Originality. paper additional hydraulic losses caused by mismatch center edges Practical value. significant increase operating achieved help modernization This allows expanding pump’s operation. At same time, it is not required replace such expensive elements casing.