INSTRUMENTATION for Development of AIRCRAFT POWERPLANT COMPONENTS Involving FLUID FLOW

PRESENTED here is a detailed discussion of the measurement requirements of general fluid flow; the design and operational problems of temperature, pressure, and miscellaneous measuring devices; and the development and calibration of various instruments. The complications which distorted and unsteady flow add to the instrument problem are described.

The authors analyze temperature probes to show how their accuracy is affected by radiation, conduction, and gas velocity. A design chart indicates-for various temperature-velocity combinations-which of these sources of error is most serious and what materials are most satisfactory for probes.