[2L05-09] Numerical Analysis

[2L07] Development of Numerical Simulation Method to Evaluate Heat Transfer of Fuel Debris in Air Cooling

(3) Validation of Porous Model in JUPITER for Forced Convection

*Shinichiro Uesawa¹, Susumu Yamashita¹, Mitsuhiko Shibata¹, Hiroyuki Yoshida¹ (1. JAEA)

Keywords:Porous model, Forced convection, Air cooling, Fuel debris, Fukushima Daiichi nuclear power station

To estimate the heat transfer of fuel debris in the primary containment vessel (PCV) of the Fukushima Daiichi nuclear power station, JAEA has developed a numerical simulation method with JUPITER. In the previous report, JUPITER underestimated the heat transfer of a porous body in comparison with a natural convective heat transfer experiment. In this report, we report a forced convection experiment with a porous body in a rectangular tube for the validation of flow. As a result, the measured differential pressure of the porous body was in good agreement with the simulation result, and the same velocity distributions as the experiment were obtained with JUPITER. Therefore, the numerical simulation method is correct for the flow with a porous body.