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DIFFUSER WITHOUT PULSATION OF THE IMPACT INTERFACE AND METHOD FOR SUPPRESSING IMPACT INTERFACE PULSATION OF DIFFUSERS
DIFFUSER WITHOUT PULSATION OF THE IMPACT INTERFACE AND METHOD FOR SUPPRESSING IMPACT INTERFACE PULSATION OF DIFFUSERS
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机译:无脉冲界面的扩散器和抑制扩散器冲击界面的方法
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摘要
A diffuser for slowing down a fluid and a method for operating a diffuser is described. A channel of the diffusor has an inlet with a smaller flow cross section than a flow cross section of an outlet and at least one opening for receiving an energizing fluid to be transported selectively into the channel. Pulsations of the impact interface are suppressed effectively at all of the operating points by injecting the energization fluid. Pressures of the fluid moving in the diffusor are measured, and amplitudes and frequencies of the measured pressures are evaluated. Energizing fluid is fed into the diffusor if the amplitudes within a predetermined frequency band exceed a threshold value. The utilization ratio of the inventive diffuser is considerably improved as a result of such a measure.
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