Предсказание И Открытие Сильнейших Гидродинамических Неустойчивостей, Вызванных Скачком Скорости: Теория И Эксперименты

Fridman, A. M.

doi:10.3367/ufnr.0178.200803a.0225

Cited by 17 publications

(1 citation statement)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The theory of the expanding universe was created by Friedman in 1922-1924 [1]. With the opening of the cosmological expansion all doubts in the introduction of the cosmological constant disappeared.…”

Section: The Discovery Of Cosmic Vacuummentioning

confidence: 99%

The Effect of Cosmic Vacuum on the Properties of Scalar Field

Sabbar

Шикин

2015

ILCPA

View full text Add to dashboard Cite

ABSTRACT. The thesis explains the effect of cosmic vacuum of gravitational field on properties of scalar field equation. In the space-time plane, the scalar field equation has periodic solution φ (x,y,z,t) = Acos(kx ± ωt). Consideration the cosmic vacuum of gravitational field (using De Sitter metric in its synchronization time) the equation of scalar field will have accurate solution in form of Beseel function. By using the asymptotic representation, the periodic solution (t→ ±∞) will vanish. The scalar field equation when t→+∞ will decrease regularly, and when → −∞ it will increasing fluctuate.

show abstract

Section: The Discovery Of Cosmic Vacuummentioning

confidence: 99%

The Effect of Cosmic Vacuum on the Properties of Scalar Field

Sabbar

Шикин

2015

ILCPA

View full text Add to dashboard Cite

show abstract

Hydrodynamic education with rheoscopic fluid

et al. 2019

View full text Add to dashboard Cite

We present a educational poster supporting the subject „Mechanics of fluids I“, which the students evaluate to be diﬃcult mainly due to abstractness. Our goal is to show in vivo the behavior, especially the non-linearity, of various flows transiting into turbulence. The fluid motion is visualized by using the rheoscopic fluid, which consist of water and the dust of mica, whose particles are longitudinal and shiny resulting into easily observable reflections, when the particles coherently orient along the maximum stress. This happens mainly in shear layers, e.g. at the boundary between vortex core and envelope. An example of flow transiting into turbulence is the Taylor-Couette flow between two concentric cylinders, which with increasing Taylor number passes through various regimes from fully laminar bearing flow through the Taylor vortex flow (TVF) and later Wavy vortex flow (WVF) up to Turbulent Taylor vortices regime (TTV) and, finally, the regime of featureless turbulence.

show abstract