Impact point prediction for thrusting projectiles in the presence of wind
In estimating the state of thrusting/ballistic endoatmospheric projectiles for the end purpose of impact point ::: prediction (IPP), the total observation time, the wind effect and the sensor accuracy significantly affect the IPP ::: performance. First the tracker accounting for the wind effect is presented. Following this, based on the multiple ::: interacting multiple model (MIMM) estimator developed recently, a sensitivity study of the IPP performance with ::: respect to the total observation time, the wind (strength and direction) and the sensor accuracy is presented.
The air test of a model of the propeller turbine was performed to reconsider the methods of designing Kaplan turbines by the usual two-dimensional treatments. The performances of it, the flow conditions at the inlet and outlet of the runner and the pressure distributions on the running blades were measured to compare with the ones of two-dimensional cascades.