3 0 0 0 OA 表層型メタンハイドレート回収技術開発に向けたメタンハイドレート粒子運動に関する研究
- 著者
- 渡邊 裕章 廣瀬 智陽子 青山 千春
- 出版者
- 日本混相流学会
- 雑誌
- 混相流 (ISSN:09142843)
- 巻号頁・発行日
- vol.36, no.4, pp.407-414, 2022-12-15 (Released:2023-01-13)
- 参考文献数
- 15
Methane hydrate is expected as domestic energy resources in near future in Japan. Especially the shallow-type methane hydrate and the associated methane plume are regarded as sustainable energy resources. In this paper, the investigation of the methane hydrate particle motion in the methane is presented. A quantitative analysis of the motions of the ascending methane hydrate particles seeping from the seafloor and reproduced by the numerical simulation is performed by the two-dimensional motion analysis technique and the behavior is discussed in detail.
1 0 0 0 OA 通風換気時における都市内建物の室内気流性状把握のための数値流体解析
- 著者
- 廣瀬 智陽子 池谷 直樹 萩島 理 谷本 潤
- 出版者
- 日本建築学会
- 雑誌
- 日本建築学会環境系論文集 (ISSN:13480685)
- 巻号頁・発行日
- vol.87, no.791, pp.19-28, 2022-01-30 (Released:2022-01-01)
- 参考文献数
- 24
The velocity field in a naturally ventilated building within urban-like arrays was explored by means of large-eddy simulations. The reduced-scale building models were utilized to examine the impact of the geometric conditions in surrounding buildings and cross-ventilating windows on flow statistics as well as instantaneous velocity fields in a sheltered building. The obtained results indicated how the incoming flow was propagated in the target building. Although simplified conditions were employed, the present findings of the features of cross-ventilation are valuable to consider the effect of outdoor turbulent flow to indoor wind environment.