Development of gas pressure distribution calculation method applicable to divertor exhaust path

Atsushi Okamoto

Presentation information

Oral presentation

VI. Fusion Energy Engineering » 601-4 Reactor Component Technology, First Wall, Divertor, Magnet/601-5 Fusion Neutronics/601-6 Fusion Reactor System, Design, Application

[3A05-09] Reactor Components and Risk Assessment

Wed. Mar 15, 2023 10:40 AM - 12:00 PM Room A (11 Bildg.1F 1101)

Chair:Naoko Ashikawa(NIFS)

10:55 AM - 11:10 AM

[3A06] Development of gas pressure distribution calculation method applicable to divertor exhaust path

*Atsushi Okamoto¹, Konan Yagasaki¹, Minami Sugimoto¹, Shunya Higuchi¹, Muneo Koike¹, Koki Sato¹, Yuto Yamada¹, Takaaki Fujita¹ (1. Nagoya Univ.)

Keywords:Knudsen flow, divertor exhaust

Gas flow in exhaust path of divertor is in Knudsen's flow region, where conductance of pipes depends on pressure. Then equation describing pressure distribution is nonlinear. We have developed a pressure distribution calculation method based on linearization. Comparing the calculation result to measurement in a small system, validity of the method is confirmed.