2016 Annual Meeting

Presentation information

Oral Presentation

III. Fission Energy Engineering » 304-1. Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[2D06-09] Thermal Hydraulics Fundamental Technology 2

Sun. Mar 27, 2016 10:50 AM - 11:55 AM Room D (Lecture Rooms B B104)

Chair: Shinji Ebara (Tohoku Univ.)

11:35 AM - 11:50 AM

[2D09] Flow transition caused by nonuniform wall heating in a vertical annular channel

*Toshiro Kamidani1, Tomoaki Kunugi1, Takehiko Yokomine1 (1.Kyoto Univ.)

Keywords:HTTR, Standpipe, Annular channel, By-pass flow, Forced convection, Natural convection, Transition condition, Numerical analysis

HTTRスタンドパイプは狭隘な垂直環状流路内を下向きの低温ガス強制対流で冷却しているが,下端の高温ガスが逆流するバイパス流の発生が懸念されている.この原因が管外筒側面の非一様な温度分布にあると仮定し,管上端部における下向き強制対流から上向き自然対流への対流遷移条件を数値解析で検討した.