Experimental and calculated velocity distributions within a pressurized optical fiber coating applicator

摘要

This work is an experimental and computational investigation of the flow field within a pressurized optical fiber coating applicator. The test apparatus used for the experimentation included an unheated test applicator equipped with two pairs of opposing windows allowing optical access for Particle Image Velocimetry as well as visualization of the axisymmetric flow field. The simulation considered isothermal axisymmetric Newtonian flow. Within the flow regions where the numerical model geometry was similar to that used in the experimentation there was good agreement between the measured and predicted magnitudes of the flow velocities, and the extent of the recirculating region within the applicator.