Kyushu University · 환경과학
C. Hirose 교수의 연구실은 자연환기 건물의 내부 바람 환경을 해석하고자, 대규모 난류 시뮬레이션을 활용한 유동 해석 연구를 중심으로 전개하고 있습니다. 특히 도시 환경에서의 건물 배열과 창문 배치가 내부 풍속과 난류 특성에 미치는 영향을 분석하며, 실내 공기 순환의 정량적 이해를 도모하고 있습니다. 추가로 메탄 기체 기포의 상승 거동을 실험 및 수치 시뮬레이션을 통해 분석함으로써 해양 기름 가스 누출 현상과 메탄 수화물 형성 메커니즘에 대한 기초 연구도 수행하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Abstract In this study, the velocity field in a naturally ventilated building within an urban‐like array was explored using large‐eddy simulations. Reduced‐scale building models were used to examine the impacts of the geometric conditions in the surrounding buildings and cross‐ventilating windows on the flow statistics and instantaneous velocity fields in the sheltered building. The instantaneous velocity components averaged in the opening area were calculated for each condition of the building
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 employ
In this study, we conducted a quantitative analysis of the behavior of ascending methane bubbles, which were filmed at two natural gas seep sites and reproduced by numerical simulations using two-dimensional motion analysis software. The targeted sites were located in the southwest and northeast of Sado Island at the eastern margin of the Sea of Japan, where methane bubbles with and without a methane hydrate (MH) layer were observed, respectively. The simulations comprising gas bubbles and MH bu
