Abstract
High speed airflow is generated around a rotational grinding wheel in the cylindrical grinding. Coolant is supplied to prevent from grinding bum, but it cannot reach to the grinding point because of the high speed airflow. This paper describes the flow characteristics around a rotating disk (rotational grinding wheel). The effects of an air scraper and a thickness of rotating disk on the development of airflow around a rotating disk were investigated by the flow measurement by using laser-Doppler velocimetry and the numerical simulation by using the commercial software ANSYS FLUENT. The tangential velocity profiles around a rotating disk without a scraper have a similarity. The scraper can be suppressed the high speed airflow around a rotating disk. It is found that the airflows from both sides surface of rotating disk have a great influence on the development of airflow on the periphery of rotating disk.
