A TRANSPIRATION COOLED NOSETIP (TCNT) CONTAINS A LARGE NUMBER OF SMALL PORTS DISTRIBUTED OVER ITS SURFACE THROUGH WHICH A COOLANT FLUID IS EJECTED.

A TRANSPIRATION COOLED NOSETIP (TCNT) CONTAINS A LARGE NUMBER OF SMALL PORTS DISTRIBUTED OVER ITS SURFACE THROUGH WHICH A COOLANT FLUID IS EJECTED. THE OVERALL OBJECTIVE OF THE PROPOSED STUDY IS TO DEVELOP A FLOW MEASUREMENT SYSTEM WHICH WILL PROVIDE DETAILED DATA ON THE DISTRIBUTION OF THIS FLOW FROM A TCNT'S SURFACE. IN PHASE I, THE OBJECTIVE WILL BE TO VERIFY THE FEASIBILITY OF DEVELOPING THIS TOOL AND IN DETERMINING ITS PERFORMANCE LIMITATIONS. A LIGHT EXTINCTION TECHNQIUE IS PROPOSED AS THE FLOW MEASURMENT APPROACH TO BE DEVELOPED.THIS TECHNIQUE AND THE HARDWARE CONFIGURATION ENVISIONED WILL ALLOW OBTAINING FLOW MEASUREMENTS IN VERY SMALL AREAS. IT WILL ALSO PROVIDE THE NONINTRUSIVE, NONDESTRUCTIVE, AND EFFICIENT MEASURMENT APPROACH NEEDED IN THIS APPLICATION. THE FABRICATION OF A MOCK-UP OF THE FLOW MEASURMENT SYSTEM AND LABORATORY TESTING WITH THIS HARDWARE WILL BE ACCOMPLISHED.