Studies on a cooling of high heat flux surface in fusion reactor by impinging planar jet flow

摘要

Divertor surface of a fusion reactor is exposed to strong surface heating by high flux charged particle. According to typical design of ITER, the heat flux on divertor surface becomes locally near 20 MW m~-2. Then, it is necessary to establish a cooling method to cool such high heat flux surface. A cooling by a planar impinging jet has been proposed. However, in the application of the impinging jet cooling to flat heated surface, high CHF is obtained in the limited region near center.