Research on Air Distribution and Aerodynamic Noise Optimization of Automotive Air Conditioning Duct
There is unreasonable air volume distribution and high noise in the defrosting ducts of automobile air conditioners,which seriously affected the comfort of automobile.A certain vehicle HVAC air conditioning is taken as the research object,the de-frosting duct of the air conditioner is optimized by experiments and simulations methods.Through the simulation analysis,the reasons of unreasonable air distribution and high noise caused by defrosting duct are found.It found that,reduce turning,ex-pand the air outlet,do a good job in the design of air separation and vortex zone transition not only could ensure the air volume distribution of each air outlet is sufficient and uniform,but also the optimized air duct can reduce the noise of vehicle by 6dB,and the test in the air volume table and semi anechoic chamber which verifies the effectiveness of the optimization scheme and pro-vides a method and practical basis for the research on noise reduction of automobile air conditioners.
Air Conditioning TestDefrosting DuctAerodynamic NoiseAir Volume Distribution
NETL
NSTL
万方数据
维普
