Study of characteristic of flow passed actuator arm by large eddy simulation method

Abstract

This paper contains and investigates the air flow characteristics which affect the actuator arm at the varied positions. Simulation models have been built by the simple model which considers only area around the arm. The velocity profile is referred to 3.5" hard disk drive and the speed of media is 7,200 rpm. Regarding to Large Eddy Simulation method, the result shows that the position that suffers the most effects from the flow is the inner diameter position. The result can be seen in the power spectral density graph and flow characteristics