Numerical simulation on spray characteristics of high pressure common rail system
With WAVE breakup model as well as standard k-e turbulence model, numerical simulation for spray characteristics was established by FLUENT on high pressure common rail fuel injection system. With the visualization of experimental platform, many spray process images were obtained using a high speed camera. Processing these images through C# procedure, macro-spray characteristics under different conditions were obtained, and then the development of spray characteristics was achieved by numerical simulation under various conditions, including spray penetration and spray cone angle. The results show that numerical simulation model is reliable and can be well verified by experiment data. With the increase of injection pressure, the spray penetration increases and the spray cone angle decreases; with the increase of gas pressure in the cylinder, the spray penetration decreases and the spray cone angle increases. With the increase of injection time, the rate of spray penetration and spray cone angle are gradually decreased.
high pressure common railfuel injectionatomization characteristicsnumerical simulation
国家科技期刊平台
NSTL
万方数据
维普
