165 / 2016-05-30 10:33:21

Fluid- Structure Coupling Analysis of NACA0015 Straight Blade

fluid-structure coupling,MFX,Low-order natural frequency,NACA0015 Straight Blade

In order to predict and analysis leaves flutter, ensure the stability of engine, on the basis of the principles and fluid-structure coupling analysis of the solving process proposed, using ANSYS to analysis the structure, using CFX to analysis the fluid, applying the MFX platform as the data coupling platform, realizing two-way fluid-structure coupling calculation. In the case of different flow velocities, perform the coupling calculation between blades and flow field, to determine the blade flutter whether or not by the monitoring point displacement. The results show that the Dither frequency of the blade is same as the Low-order natural frequency of blade, prove the flow velocity is an important factor affecting the stability of blades and as a basis of analyzing blade flutter.