Mathematical and Computer Modeling of a High-speed Turbo Drill for Extreme Drilling Conditions

The article presents the results of research on design of a high-speed turbine, calculation of flow and losses in its flow passage. In the course of the study, optimization algorithms were used to change the geometric parameters of a three-dimensional parameterized flow section in stationary and non-stationary settings in order to improve the required integral characteristics of the turbine. Numerical calculations were performed in Ansys Workbench software package on heterogeneous Polytechnic – RSK Tornado cluster of SPbPU. The developed flow passage of the turbo drill stage exceeds the parameters of the original model. This model, compared with the original version with the same pressure drop, allowed an increase in turbine efficiency with a significant increase in torque (+47%). In order to validate the results of numerical calculations using computational fluid dynamics methods, preparations are being made to perform experimental studies of the designed models on a water experimental unit.