Astarita T., Carlomagno G.M. Infrared Thermography for Thermo-Fluid-Dynamics

Springer, 2013. — 236 p.
The aim of this monograph is to present an analysis of how to exploit thermographic measurements in complex fluid flows, either to evaluate wall convective heat fluxes, or to investigate flow field behaviour over complicated body shapes in order to better comprehend some peculiar fluid dynamics phenomena, such as flow instability, flow separation and reattachment.
The monograph covers the following important points, which may be of benefit both to newcomers and those already using infrared thermography in convective heat transfer:
1. What is infrared thermography and how did it develop in thermo-fluid dynamics?
2. What are the very basic principles of radiation heat transfer that make the IR scanner (camera) a temperature transducer?
3. What is the current technology of modern IR cameras?
4. Once a camera has to be acquired, how can one evaluate its performance?
5. How is the calibration of this temperature transducer performed?
6. Since an IR camera is nothing more than a temperature transducer, we provide detail on the heat flux sensors that must accompany it, including their limits in space and time and paying particular attention to their use in infrared thermography.
7. The degradation (modulation) of the thermal image (introduced by the IR imaging system, the heat flux sensor and the environment) is considered and we provide a general analysis of its restoration.
8. We discuss a number of selected applications in several different areas with the principal aim of indicating either how this experimental method progressed or how to apply it correctly.