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Development of Design Support System on Combustion Parameters for High-Efficiency and Low-Emission Diesel Engines

高效低排放柴油机燃烧参数设计支持系统开发

基本信息

批准号：
07555072
负责人：
HIROYASU Hiroyuki
金额：
$ 5.25万
依托单位：
HIROSHIMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555072/
关键词：
Internal Combustion Engine Combustion Diesel Engine Spray Simulation Design Support Three Dimensional Graphics ディーゼル

项目摘要

Design support system on combustion parameters for high-efficiency and low-emission diesel engines has been developed using the phenomenological simulation model and 3-dimensional volume rendering technique.The effects of combustion process parameters on liquid atomization process, diesel spray characteristics, combustion characteristics and exhaust emissions has been reseached, and the unique phenomenological simulation model has been developed by our research group. Moreover, 3-dimensional volume rendering technique has been also developed at Hiroshima University in order to visualize meansred and calculated results realistically. In this research project, the phemonenological simulation model and the volume rendering technique has been combined for developing a design support system of diesel engines.In 1995, the liquid atomization process inner a spray which has been unresolved was researched using a new laser induced fluorescent technique, and the liquid atomization model was modified applying the results by the new technique.In 1996, spray and flame behavior impinging on a combustion chamber wall were investigated using the 2 wavelength laser absorption and scattering method. Furthermore, 3-dimensional visualization system of calculated results and a user interface system were completed. The calculating time of the diesel combustion is 2 or 3 minutes using a Pentium PC,the time for data converting is 5 or 10 minutes, and about one minute is requied for 3 dimensional visualization.using a Silicon-Graphics Indigo.

利用唯象模拟模型和三维体绘制技术开发了高效低排放柴油机燃烧参数设计支持系统，研究了燃烧过程参数对液体雾化过程、柴油机喷雾特性、燃烧特性和排放的影响，并开发了独特的唯象模拟模型。此外，广岛大学还开发了三维体绘制技术，以逼真地显示测量和计算结果。在本研究项目中，将物候学模拟模型和体积绘制技术相结合，开发了柴油机设计支持系统。1995年，利用一种新的激光诱导荧光技术研究了尚未分辨的喷雾内的液体雾化过程，并应用新技术对液体雾化模型进行了修正。1996年，利用双波长激光吸收和散射方法研究了燃烧室壁面撞击的喷雾和火焰行为。此外，还完成了计算结果的三维可视化系统和用户界面系统。使用奔腾PC机计算柴油机燃烧过程需要2~3分钟，数据转换时间为5~10分钟，三维可视化大约需要1分钟。