| 초록 |
The characteristics of spray has much effect on performance and emissions for automobile, diesel engine, gas turbine and combustion engines. So spray behavior after impinging the wall is very important for prediction the engine performance. This studies examined about impingement spray considering ambient density( I 8,24,30 kg/m³,temperature(293,473K), impingement angle(0,30,45˚). The images of impingement spray were obtained by the high speed video camera. After that we analyzed impingement spray characteristics to use this images. In this experiment, we found that 1) The spray width is reduced by increasing the ambient gas density and temperature, 2) The growth of downstream is increased by increasing the impingement angle. |
