We simulate the effects of viscous dissipation of waves that are generated by AGN activity in clusters of galaxies. We demonstrate that the amount of viscous heating associated with the dissipation of these waves can offset radiative cooling rates in cooling flow clusters of galaxies. This heating mechanism leads to spatially distributed and approximately symmetrical dissipation. The heating wa...

We simulate the effects of viscous dissipation of waves that are generated by AGN activity in clusters of galaxies. We demonstrate that the amount of viscous heating associated with the dissipation of these waves can offset radiative cooling rates in cooling flow clusters of galaxies. This heating mechanism leads to spatially distributed and approximately symmetrical dissipation. The heating wa...

The casting of lead-free solder bulk samples has been investigated by varying the conditions of solidification. Two sets of samples were generated, one water-quenched and the other air-cooled. From these cast samples, tensile testing specimens were produced for the investigation of their mechanical properties. Cooling rate effects were specifically analyzed using small solder droplets. Excellen...

The local cooling of parietal, frontal or motor cortical areas; in cats under Nembutal anesthesia changed evoked potentials (EPs) in pulvinar, lateral posterior and medial dorsal thalamic nuclei. Parietal cortex, cooling led to rapid and significant changes of visual EP and delayed but strong changes of somatic EP in the pulvinar-lateral posterior complex. In contrast, frontal cortex cooling le...

Increasing the combustion temperatures in a gas turbine engine to achieve higher efficiency and power output also results in high heat loads to turbine components downstream of the combustor. The challenge of adequately cooling the nozzle guide vane directly downstream of the combustor is compounded by a complex vortical secondary flow at the junction of the endwall and the airfoil. This flow t...