Application Research of Fixed-Point Jet Technology on Electronic Equipments Cooling
|School||Nanjing University of Aeronautics and Astronautics|
|Course||Machine and Environmental Engineering|
|Keywords||Designated jet Numerical Simulation Uniform air Electronic equipment cooling Variable flow coefficient|
With the continuous development of electronic technology , electronic equipment cooling problem , especially in the high-power field has become more and more prominent . Cooling system heat to a certain type of phased array radar antenna is designed to study the heating and structural characteristics of the antenna , and preliminary experimental results on the antenna sample [ 1] , to determine the design is still designated jet technology , but not detect antenna sample piping system of linear amplification , but in conjunction with the antenna system and cooling system in conjunction with the redesign . Important are the following aspects : the heat generating components heat load calculation wavefront and determine the cooling piping systems in the form ; rederived pipeline design formula , the main consideration orifice variable flow coefficient μ and the outlet pressure ; consider orifice constant flow coefficient μ and variable flow coefficient μ conditions , the use of computational fluid dynamics simulation software fluent main channel ( circular cross section ) and jet pipes ( flat section) simulation analysis , simulation results and theoretical calculations contrast ; preparation of uniform air supply piping software . The results show that : consider the orifice variable flow coefficient μ and outlet pressure of the theoretical formula used to calculate the different the section ventilation ducts and theoretical results is consistent . FLUENT software with 3D solid modeling , computational fluid dynamics , heat transfer calculations , calculations graphical functions , the introduction of these new concepts , new features to the thermal design of the cooling system of the radar antenna , can effectively improve the design, development cost savings , shorten the development cycle , improve the self-development capacity .