東京大学 · 工学
楊理教授の研究室では、微小スケールの流体挙動と多孔質媒体内の非線形流れを実験的・数値的アプローチで解明しており、低 permeability 地盤やナノスケールの流体挙動の理解を深めています。特に、マイクロチューブを用いた流動特性の測定や、μCTを用いた非球形粒子の高精度再構築、DEMシミュレーションを組み合わせた土壌の力学的挙動の解明が特徴です。また、電気化学的還元反応を応用した環境浄化技術の開発にも取り組んでいます。
Figures are computed from collected data and may differ slightly.
Take the flow characteristics of fluid in micro tube as the object, the characteristics of nonlinear filtration in low permeability reservoirs were studied using micro scale method by simulating the micro pore throat of reservoir with the micro tube which has the similar scale pore throat of low permeability reservoirs. The flow characteristics of de-ionized water flowing through fused silica capillary tubes with radius of 10.0 μm, 7.5 μm, 5.0 μm and 2.5 μm were investigated in experiments. Rela
Electrochemical reduction of nitrate to ammonia is of great interest in water treatment with regard to the conversion of contaminants to value-added products, which requires the development of advanced electrodes to achieve high selectivity, stability, and Faradaic efficiency (FE). Herein, nickel phthalocyanine was homogeneously doped into the fiber of a carbon nanotube (CNT) sponge, enabling the production of an electrode with high electrochemical double-layer capacitance (<i>C</i><sub>DL</sub>
This contribution provides high-fidelity images of real granular materials with the aid of X-ray micro-computed tomography (μCT), and employs a multi-sphere representation to reconstruct non-spherical particles. Through discrete-element method (DEM) simulations of granular samples composed of these non-spherical clumps, the effect of particle shape on the macroscopic mechanical response and microscopic soil fabric evolution is examined for soil assemblies under triaxial compression. Simulation r
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