東京工業大学 · 工学
Feng Xiao教授の研究室は、流体シミュレーションにおける自由界面の高精度な捉え込みを目的とした数値解法の開発を主軸としています。特に、VOF法に代わる高精度な界面捕捉法「THINC」を基盤とし、非構造格子や複雑な形状のメッシュに対応した数値スキームの構築を進めています。また、腐食防止に応用された超親水性表面の開発や、心停止に伴う脳虚血再灌流損傷のメカニズム解明など、応用分野にも広がる多様な研究が展開されています。
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Abstract This paper presents a simple and practical scheme for capturing moving interfaces or free boundaries in multi‐fluid simulations. The scheme, which is called THINC (tangent of hyperbola for interface capturing), makes use of the hyperbolic tangent function to compute the numerical flux for the fluid fraction function, and gives a conservative, oscillation‐less and smearing‐less solution to the fluid fraction function even for the extremely distorted interfaces of arbitrary complexity. Th
Anodic CuO nanoneedle array films were synthesized and modified by fluorosilanization to create superhydrophobic surfaces for effective corrosion protection.
In this paper, we present two practical schemes for advection transport equation. The schemes, namely Conservative Semi‐Lagrangian with Rational function (CSLR0) and CSLR1, are two new variants of the Constrained Interpolation Profile‐Conservative Semi‐Lagrangian (CIP‐CSL) type methods [ Yabe et al. , 2001 ]. In these schemes, the subgrid profile is approximated within a single cell by rational interpolation functions. Both the cell‐integrated average and the values at the two cell interfaces ar
SUMMARY We present in this paper an efficient and accurate volume of fluid (VOF) type scheme to compute moving interfaces on unstructured grids with arbitrary quadrilateral mesh elements in 2D and hexahedral elements in 3D. Being an extension of the multi‐dimensional tangent of hyperbola interface capturing (THINC) reconstruction proposed by the authors in Cartesian grid, an algebraic VOF scheme is devised for arbitrary quadrilateral and hexahedral elements. The interface is cell‐wisely approxim
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