REAL TIME ESTIMATION OF TRANSIENT FLOW VELOCITY PROFILES USING KALMAN FILTERING TECHNIQUES.

This paper presents theory and experiments on the estimation of velocity profiles in unsteady pipe flows from the measurement by a hot film velocimeter. A signal process model was formulated for the measurement and apply Kalman filtering techniques were applied to the signal model. The filter derived was implemented on a personal computer and executed in real time yielding successful estimation of the velocity profiles on a CRT display. This method of measuring unsteady flows provides an effective means to construct a computerized flowmeter with high dynamic accuracy.