Numerical Simulation of Aeroelastic Interaction Between Gas-Liquid Flow and Deformable Elements in Modular Separation Devices

摘要

This paper considers modular dynamic separation devices as automatic control systems, which have hydraulic resistance as a regulation object and elastic forces as a control impact. The way for extension of the range of their efficient operation is proposed using vibration-inertia separation process. The related mathematical model of the abovementioned separation process is realized in three stages. This paper deals with numerical simulation of the aeroelastic interaction between gas flow and deformable elements in modular separation devices using the ANSYS Workbench software package. It should be noted that the modules Transient Structural and Fluent are used by system coupling combination. Two-way FSI method is chosen for simulation of aeroelasticity problem. Boundary conditions of symmetry are used for reducing of resource consumption of the problem solution. Methods of the dynamic meshes deforming are considered for additional preventing from negative volumes occurrence, as well as other significant settings for this type of problem are described. The oscillation frequencies of the deformable elements are determined according to the results of a numerical experiment for gas flow inlet velocity in the range from 3 to 6 m/s. The highest oscillation frequency 153 Hz is determined and observed for the inlet flow velocity equal to 4 m/s.