PIWG masthead
Engine photo 1
Engine photo 2
Sensor Specifications

Heat Flux

The measurement of heat flux (watt/m2) is of interest in directly determining the cooling requirement of hot section blades and vanes. In addition if the surface and gas temperatures are known, the measurement of heat flux provides a value for the convective heat transfer coefficient that can be compared with the value provided by CFD codes.


Current Sensor Needs

It is difficult to measure heat flux without having the measurement disturb the measure and, so if a physical sensor is used to measure heat flux, a thin film design is desirable. It must be constructed of materials capable of withstanding the harsh environment in the hot section. Non-intrusive optical methods, such as the use of temperature sensitive paints, should also be pursued since in many cases they do affect measurement at all.