Experimental research on noise of cooling systemfor blade server

Through identifying the source of the server noise with aero-acoustics knowledge and experiments, it has been confirmed that the server noise is mainly the rotary noise and the noise frequencies are estimated. The CAD (Computer Aided Design) model of the blower frame is made by UG (Unigraphics) and then the simulation study of the air flow field of the blower frame is made by the CFD (Computational Fluid Dynamics) program package FLUENT. An acoustic attenuation module is designed based on the simulation study and the characteristics of the server noise source, and the satisfactory noise reduction result is achieved.