The flow characteristics of the 2-dimensional model defroster duct which simulated defroster duct system inside a vehicle passenger compartment was investigated to obtain the data of the dafroster duct design with nozzle shape and impinging angle etc....
The flow characteristics of the 2-dimensional model defroster duct which simulated defroster duct system inside a vehicle passenger compartment was investigated to obtain the data of the dafroster duct design with nozzle shape and impinging angle etc.. As the results from the experiment. the contraction ratio and shaps of the dafroster nozzle which is one of the most important parameters in the duct design affected the dischargecoefficient of the defroster nozzle. The half-width of the wall jet formed by a impingement of the plane free jet issued from the defroster nozzle on the windshield increased with the dacrease of the impinging angle. And also we could find that there was a reflection point of the momentum distribution with impinging angle near the 60 deg..<br/>