Abstract

The knowledge of the temperature and velocity distributions in a flow field can be of fundamental importance to understand the underlying physical processes. The standard techniques employed for such investigations are affected by different drawbacks like high intrusiveness, high test times, high equipment costs and complexity of operation. In order to overcome these drawbacks a new experimental technique is being developed. This provides a two-dimensional and simultaneous measurement of temperature and velocity using a thermal sensor (high porosity grid) and a temperature transducer (Infrared camera). The presentation will describe the physical and technical aspects of the technique and the scenarios in which it could be successfully employed like, for example, gas flows in tunnels and buildings generated by fires and/or ventilation systems.