1985 年 51 巻 465 号 p. 1688-1693
In a HTGR, the reactor core is operated with reference to a core region outlet temperature of coolant gas. The coolant gas. The coolant temperature is measured by a thermocouple installed within a cavity of a plenum block. Therefore, an accurate measurement of the coolant temperature is required. This paper presents an experimental study on two-jet mixing in the cavity of the plenum block. The temperature distribution in the cavity were measured for various Flow conditions and cavity configurations. Preferable configurations for thermal mixing were obtained.