期刊名称：Vojnotehnicki glasnik / Military Technical Courier
印刷版ISSN：0042-8469
电子版ISSN：2217-4753
出版年度：2001
卷号：49
期号：4-5
页码：466-477
语种：
出版社：Ministry of defence of the Republic of Serbia: University of defence in Belgrade
摘要：This paper presents some results concerning the interaction between squish and tumble and its effect on flame front shape and its displacement through the combustion chamber geometry of the s.i. engine consisting of o flat head with two vertical valves and the cylindrical bowl. These results obtained by the KIVA 3V code were compared with the results of the flame front shape and its displacement obtained for the case with no valves i.e. without tumble. In order to alleviate the application of the KIVA 3Vcode and to enhance its flexibility, two additional computer codes were applied as well, i.e. the AVL TYCON code intended for cam design calculations and calculations of the dynamic behavior of timing drives and gear transmission units and the AVL BOOST code intended for engine cycle calculations, including 1.5D fluid flow calculations through pipelines. The first code was used for the calculation of the valve lift curve while the other was used for the calculation of the relevant data set in valve regions. It was found that for particular combustion chamber shapes considered the entirely different flame front shapes and propagation velocities were encountered for these two cases ensuing primarily from the entirely different fluid flow patterns in the vicinity of TDC.
