No abstract

In this study ， the effect of inject 孟 on pressure ， vessel pressure ， and vessel temperature on the spray cone angle and the flame angle was investigated by using cons 伽 t volurne combustion vessel in order to develop calcUlation model of spray combustion for marine diesel engines ． As a resul ち an experimenta1 formula was obtained as a function of injection pressure and vessel temperanlre related with the spray cone angle． The other fbmlula was obtalned as a fUnodon ofvessel pressure and vessel t巳mperature re 正 ated with the flame angle ． From tho comparison between the simulation and the experimental result of the 且ame position ， it was fbund that a blue flame fbont can be estimated by the c 証 culation of shnple f！ ame propagation ． Key wordS ：Diesel engine ， Spray combustion ， Cone angle ， Flame angle ， Flame position ， Experimental forrnula