液体ヘリウムポータブルタンクのバッフルによるスロッシュ特性の数値研究
Jia Qiming1, Guo Liang1,2, Xie Xiujuan1
1State Key Laboratory of Cryogenic Science and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China.
Science progress
|September 3, 2025
まとめ
輸送 過程 で 液体 ヘリウム (He) が 流出 する こと を 防ぐ ため に,研究 者 たち は バッフル を 開発 し まし た. シミュレーションでバッフルが確認された
科学分野:
- 冷凍技術
- 流体力学
- 航空宇宙工学
背景:
- 液体ヘリウム (He) は,独特の蒸気-液体物理性質の課題を提示しています.
- 輸送中の液体ヘリウムのスラッシュは安全性と効率性を損なう可能性があります.
研究 の 目的:
- ポータブルタンクでの液体ヘリウムスラッシュを緩和するためのバッフル構造を開発し,検証する.
- スロッシングの特徴と内部圧力の変動を制御するバッフルの有効性を数値的に分析する.
主な方法:
- 液体ヘリウムタンクの3次元バッフルモデルの開発.
- ガス-液体インターフェースデータを用いてシミュレーションモデルを検証し,8.5%未満のエラーを達成します.
- 段階界面面積,温度均一性,圧力変動を含むスローシング特性の数値比較.
主要な成果:
- 5. 57 m/s2の最適な振動刺激幅がスローシングの緩和のために特定されました.
- バッフルは,蒸気-液体の相変化,圧力変動を効果的に軽減し,温度均一性を改善することが示されました.
- 液相分子の分析は,内部圧力の影響を軽減するバッフルの役割を確認しました.
結論:
- 開発されたバッフル構造は,液体ヘリウムスラッシュを防ぐのに有効です.
- 液体ヘリウム輸送の安全性と効率を大幅に高めます.
- 液体ヘリウムを高速道路で安全に輸送するには 極めて重要です
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