Large eddy simulation on the wake characteristics of linearly stratified flow past a sphere DOI Creative Commons
Tianyang Xia, Na Wei,

Liuliu Shi

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 22, 2025

In this study, Large Eddy Simulation (LES) has been employed to examine the influence of Froude number (Fr) on linearly stratified wake and internal waves behind a sphere at subcritical Reynolds Re = 3700. Six distinct sets models with varying Fr (Fr 0.05, 0.25, 0.5, 1, 2, ∞) have chosen establish density linear stratification through use User Defined Function (UDF). The analysis focuses impact characteristics, velocity distribution, structure within flow. It is evident that plays pivotal role in shaping structure. Notably, flows, wakes exhibit unique characteristics including generation waves, suppression vertical velocity, emergence oscillating patterns. study reveals decrease leads heightened increased anisotropy distribution. Furthermore, as ascends from 0.05 undergoes transition quasi-two-dimensional vortex shedding three-dimensional turbulence.

Язык: Английский

Large eddy simulation on the wake characteristics of linearly stratified flow past a sphere DOI Creative Commons
Tianyang Xia, Na Wei,

Liuliu Shi

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 22, 2025

In this study, Large Eddy Simulation (LES) has been employed to examine the influence of Froude number (Fr) on linearly stratified wake and internal waves behind a sphere at subcritical Reynolds Re = 3700. Six distinct sets models with varying Fr (Fr 0.05, 0.25, 0.5, 1, 2, ∞) have chosen establish density linear stratification through use User Defined Function (UDF). The analysis focuses impact characteristics, velocity distribution, structure within flow. It is evident that plays pivotal role in shaping structure. Notably, flows, wakes exhibit unique characteristics including generation waves, suppression vertical velocity, emergence oscillating patterns. study reveals decrease leads heightened increased anisotropy distribution. Furthermore, as ascends from 0.05 undergoes transition quasi-two-dimensional vortex shedding three-dimensional turbulence.

Язык: Английский

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