1992 Volume 35 Issue 3 Pages 435-441
This paper presents a unique approach for two-dimensional visualization and measurement of chamber wall temperatures in ultralean combustion engines. It also includes a three-dimensional measurement method for flame speed in the lean combustion of spark-ignited engines. Ultralean combustion, which is characterized by an air fuel ratio of more than 20, has proven to be effective for combustion improvements such as emission gas cleaning and thermal efficiency. However, combustion has inherent difficulties such as instability. Swirl is an effective method of stabilizing lean combustion. It is important from a combustion stability standpoint to understand the relationship between swirl and wall temperature and between swirl and flame. Wall temperature distribution and three-dimensional flame speed in ultralean combustion are clearly observable by use of the visualization method. The relationship between wall temperature distribution and three-dimensional flame speed is investigated.
JSME international journal. Ser. 1, Solid mechanics, strength of materials
JSME international journal. Ser. A, Mechanics and material engineering
JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing
JSME International Journal Series B Fluids and Thermal Engineering
JSME International Journal Series A Solid Mechanics and Material Engineering
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing
JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry