方法对比
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| 流体体积法× | 大涡模拟× | |
|---|---|---|
| 领域 | 流体力学 | 流体力学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1981 | 1963 |
| 提出者≠ | Cleve Hirt | Joseph Smagorinsky |
| 类型≠ | Eulerian interface tracking method | Scale-resolving turbulence simulation |
| 开创性文献≠ | Hirt, C. W., & Nichols, B. D. (1981). Volume of fluid (VOF) method for the dynamics of free boundaries. Journal of Computational Physics, 39(1), 201-225. DOI ↗ | Smagorinsky, J. (1963). General circulation experiments with the primitive equations: I. The basic experiment. Monthly Weather Review, 91(3), 99-164. DOI ↗ |
| 别名≠ | VOF, VoF, volume fraction method | LES, subgrid-scale modeling |
| 相关 | 5 | 5 |
| 摘要≠ | The Volume of Fluid (VOF) method is an Eulerian interface-tracking technique for multiphase flow simulations, developed by Hirt and Nichols in 1981. Instead of explicitly tracking the interface between phases, VOF advects a scalar field (the volume fraction) that represents the fractional volume of one phase in each grid cell. This approach elegantly handles topological changes (splashing, merging, breaking) without explicit interface reconstruction, making it ideal for complex multiphase flows on fixed Eulerian grids. | Large Eddy Simulation (LES) is a turbulence modeling technique that explicitly resolves large-scale turbulent eddies while modeling small-scale subgrid-scale (SGS) motions. Introduced by Joseph Smagorinsky in 1963, LES represents a middle ground between Reynolds-Averaged Navier-Stokes (RANS) and Direct Numerical Simulation (DNS). By capturing the energy-containing scales of turbulence, LES provides superior accuracy for transient flows and complex geometries at computational costs significantly lower than DNS. |
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