How to do a good flow analysis inside the centrifugal fan blade

Now through the combination of practice, the influence of spherical particles attached to the pressure surface of the centrifugal fan on the wear resistance of the fan has been studied. The experimental results prove that the attachment of spherical particles to the fan blades can not only effectively improve the wear resistance of the fan The surface pressure is also the main part of controlling the wear of the blades, and the distribution of spherical particles on the surface of the blade pressure is changed. The aerodynamic protection mechanism of the centrifugal fan is analyzed and discussed.

http://www.axair-fans.co.uk/industrial-fans/centrifugal-fans/forward-curved-centrifugal-fans-single-inlet-standard-motor/

At present, a theoretical model is used to establish a centrifugal fan for prediction, which can reflect the influence of the volute of the internal fan, as well as the The influence of aerodynamic noise, further research provides a basis from which, when the dusty gas is purified with dust removal equipment, the particle size of the powder is already small, and the fluency in the two-phase flow, and shows that the particle concentration becomes an important factor affecting the impeller The wear, therefore, depends on the turbulence model voltage and the wear model.

The experimental results prove that the wear position is related to the particle size, the influence of the particle concentration on the wear rate is much greater than the influence of the mass concentration on the wear rate, and the three-dimensional flow in the volute of the rectangular section of the centrifugal fan , so there are obvious differences between the velocity distribution along the radial direction and the law of conservation of momentum, especially the velocity distribution and the pressure near the tongue of the volute, for the secondary flow loss and internal leakage loss, the impact friction loss is the worst.

http://www.axair-fans.co.uk/industrial-fans/centrifugal-fans/forward-curved-centrifugal-fans-single-inlet-standard-motor/

Through the mechanical use of centrifugal fan mechanical impellers, and the numerical analysis of flow field gas, using three-dimensional finite elements and ordinary differential equations, the new method of technology is proposed in the equation, and the method is used for Solve the equation of the three-dimensional particle motion path in the centrifugal fan, which is used as a numerical example to analyze the two-phase gas-solid flow, the impact of different particle sizes on collision and impeller wear.