Three-dimensional computation of in-cylinder flow and combustion characteristics in diesel engines — Effect of wall impingement models of fuel droplet behavior on combustion characteristics

✍ Scribed by Hiroshi Ogawa; Yukio Matsui; Shuji Kimura; Jun-ichi Kawashima

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 472 KB
• Volume: 18
• Category: Article
• ISSN: 0389-4304
• DOI: 10.1016/s0389-4304(96)00065-3

✦ Synopsis

A computer code called TurboKIVA was used to perform three-dimensional computations to investigate the effects of fuel spray formation on the combustion and emission characteristics of direct and indirect injection diesel engines. As the first step, the code was modified to facilitate quantitative prediction of soot emissions and to improve prediction accuracy. An investigation was then made of the effects of fuel droplet wall impingement models on combustion characteristics. The results showed that combustion performance was influenced by the models, making it important to select a suitable wall impingement model in predicting NO x and soot emissions based on the operating conditions of IDI diesel engines.