Cyclone cooling is a promising method for more effective internal of turbine rotor blades with simplified channels including swirling flow to enhance heat transfer. Previous studies have led the conclusion that improving performance requires an adapted film design, tailored cyclone application. In this paper, blade realistic, complex features design investigated experimentally using infrared th...

Film cooling is widely applied as an effective way to maintain the turbine blade temperature at acceptable level. The present paper investigates overall effectiveness and flow structure by performing conjugate heat transfer simulations for flat-plate baseline cylindrical three cratered film-cooling holes. in fluid domain obtained using Shear Stress Transport turbulence model, solid conductivity...

background: the phase change materials (pcms) have the appropriate properties for controlling heat strain. one of the well-known pcms is paraffin. this study aimed to design the cooling vest from the cheap commercial paraffin compound and evaluation of its effectiveness under laboratory hot conditions. methods: the cooling vest was made of the polyester fabric and it had 17 aluminum packs. the ...

SUMMARY Experiments are reported in which film cooling tests are carried out using coolent injection through rows of discrete holes. A shock tunnel is used to provide a transient mainstream flow at stagnation temperatures of 5m°K, 1000°K and 2COO'K. Wall heat transfer rates are measured with and without coolant injection using thin film gauges. Mainstream Mach numbers of 0.2, 0.5 and 0.7 are em...