Research on heat transfer characteristic of lamilloy internal surfaces using transient liquid crystal technique

Experiment was carried out to describe the hear transfer coefficient distribution of inner surfaces (target plate, impingement plate and pins) of large scale lamilloy configuration model by utilizing the narrow-band transient liquid crystal technique (TLC). The mechanism of heat transfer intensification was also interpreted. The result shows that: heat transfer coefficient distribution of inner surfaces of lamilloy can be obtained by using the TLC technique and more detail information are also available; heat transfer coefficient of inner surface is linearly increased with growing Reynolds number and gradually reduced with the higher channel.