Micro Cooling Fan Resonance

When the "Micro Cooling Fan" operating conditions deviate the flow direction changes resulting in various blade inlet angle of attack can not be the same. If a blade angle of attack at the inlet reaches a critical value, it is the first place on the blade stall, but not all "dota2雷竞技预测 " blade stall occurs simultaneously, this phenomenon continue in that stall caused clogged area along with promoting the impeller rotates in the opposite direction, that is, a so-called "rotating stall" phenomenon. "dota2雷竞技预测 " fan into an unstable operating zone run, will produce a number of rotating stall area to the impeller. Each time through the blade stall area would be the role of a exciting force, thereby allowing the blade to resonate.