Numerical simulation of the airflow in a mine axial fan in reverse mode

Abstract

The article considers the numerical calculations of the air flow flow in an asian fan operating in reverse mode. The calculation was carried out in the ANSYS CFX. Fan of the TsAGI OV-103 aerodynamic scheme was considered, for which experimental aerodynamic characteristics are known. K-ε and SST turbulence models were used in the calculation. The dependences of the total fan pressure on the flow rate are obtained. For a single-stage Rotor+OGV scheme, the closest to experimental results were calculated using the SST model. For a two-stage Rotor+OGV+Rotor+OGV dependence of the total pressure is determined using the k-ε model. For such a scheme, axial velocity distributions in the outlet are calculated for different performance values.