مقایسهٔ روشها
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| هیدرودینامیک ذرات هموار شده× | روش حجم سیال× | |
|---|---|---|
| حوزه | دینامیک سیالات | دینامیک سیالات |
| خانواده | Process / pipeline | Process / pipeline |
| سال پیدایش≠ | 1977 | 1981 |
| پدیدآور≠ | Monaghan John & Lucy Leon | Cleve Hirt |
| نوع≠ | Meshfree particle method | Eulerian interface tracking method |
| منبع بنیادین≠ | Lucy, L. B. (1977). A numerical approach to the testing of the fission hypothesis. The Astronomical Journal, 82(12), 1013-1024. DOI ↗ | 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 ↗ |
| نامهای دیگر≠ | SPH, particle hydrodynamics | VOF, VoF, volume fraction method |
| مرتبط | 5 | 5 |
| خلاصه≠ | Smoothed Particle Hydrodynamics (SPH) is a meshfree particle method for simulating fluid dynamics, developed independently by Lucy in 1977 and Gingold and Monaghan in 1977. Rather than discretizing on a fixed grid, SPH represents fluids as collections of particles that carry mass, momentum, and energy. Each particle interacts with neighbors within a kernel support radius, enabling natural handling of free surfaces, large deformations, and multiphase flows without remeshing. SPH has become indispensable for simulations involving violent flows, impacts, and complex interfaces. | 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. |
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