Design of Large Scale Comprehensive Environmental Test Chamber and Study on Velocity Field
As one of the important equipment for environmental adaptability and reliability testing of large-scale equipment,the large-scale comprehensive environmental test chamber plays an important role in the performance and evaluation optimization of products.The purpose of this paper is to systematically explain the working principle and design of a large-scale comprehensive test chamber,providing a basis for subsequent system optimization.Meanwhile,using CFD numerical simulation to calculate the velocity field distribution under different air supply speeds.The results indicate that swirling vortex phenomenon will form inside the test chamber;when the vibration table and test pieces are added,this phenomenon disappears,but the speed on the air supply side decreases.The airflow velocity shows a trend of first decreasing and then increasing with the increase of height;When adding vibration tables and test pieces,the disturbance effect on the velocity field is significant.
environmental test chamberVelocity field distributionstructural designvelocity gradient
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