Výsledky vyhledávání - "Hiruta, Yoshiki"

Report

Localization and bistability of bioconvection in a doubly periodic domain

A suspension of swimming microorganisms often generates a large-scale convective pattern known as bioconvection. In contrast to the thermal Rayleigh-Benard system, recent experimental studies report an emergence of steady localized convection pattern

Externí odkaz: http://arxiv.org/abs/2405.05494

Zobrazit plný text záznamu

Report

Reciprocal microswimming in fluctuating and confined environments

Autor: Hiruta, Yoshiki, Ishimoto, Kenta

From bacteria and sperm cells to artificial microrobots, self-propelled microscopic objects at low Reynolds numbers often perceive fluctuating mechanical and chemical stimuli and contact exterior wall boundaries both in nature and the laboratory. In

Externí odkaz: http://arxiv.org/abs/2307.10049

Zobrazit plný text záznamu

Dissertation/ Thesis

Dynamics and subcritical transition focusing on spatially-localized turbulence in two-dimensional Kolmogorov flow

Autor: Hiruta, Yoshiki

0048
甲第21552号
理博第4459号
新制||理||1640(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM

Externí odkaz: http://hdl.handle.net/2433/242590

Zobrazit plný text záznamu

Report

Subcritical laminar-turbulence transition with wide domains in simple two-dimensional Navier-Stokes flow without walls

Autor: Hiruta, Yoshiki, Toh, Sadayoshi

We have confirmed numerically that a subcritical laminar-turbulence transition that belongs to directed percolation (DP) universality class occurs in a purely two-dimensional (2D) simple Navier-Stokes (NS) flow without any walls. The flow is called (

Externí odkaz: http://arxiv.org/abs/1805.04257

Zobrazit plný text záznamu

Report

Intermittent direction reversals of moving spatially-localized turbulence observed in two-dimensional Kolmogorov flow

Autor: Hiruta, Yoshiki, Toh, Sadayoshi

Publikováno v: Phys. Rev. E 96, 063112 (2017)

We have found that in two-dimensional Kolmogorov flow a single spatially-localized turbulence (SLT) exists stably and travels with a constant speed on average switching the moving direction randomly and intermittently for moderate values of control p

Externí odkaz: http://arxiv.org/abs/1706.04395

Zobrazit plný text záznamu