[HTML][HTML] Strong dissimilarity between heat and momentum transfer in rotating Couette flows

G Brethouwer - International Journal of Heat and Mass Transfer, 2023 - Elsevier
Rotation influences flows and transport processes in many engineering applications,
however, even in canonical flow cases, the effects of rotation are not fully understood. Here …

Twin forces: similarity between rotation and stratification effects on wall turbulence

S Zhang, C Sun - Journal of Fluid Mechanics, 2024 - cambridge.org
Can the similarity between rotation and stratification provide quantitative predictions for
complex turbulence? In this work, we focus on plane Couette turbulence as the background …

Exploring the origin of turbulent Taylor rolls

V Jeganathan, K Alba… - … Transactions of the …, 2023 - royalsocietypublishing.org
Since Taylor's seminal paper, the existence of large-scale quasi-axisymmetric structures has
been a matter of interest when studying Taylor–Couette flow. In this article, we probe their …

Aerodynamic characteristic of limited micro-scale Taylor–Couette flow at hyper-rotate speed

Y Lyu, P Huang, J Zhang, Y Liu, J Zhang - Physics of Fluids, 2024 - pubs.aip.org
To pursue improvements in the power-to-weight ratio, cost-effectiveness ratio, and reliability
in the energy industry, rotating machinery has been developed with higher rotational speeds …

Much faster heat/mass than momentum transport in rotating Couette flows

G Brethouwer - Journal of Fluid Mechanics, 2021 - cambridge.org
Heat and mass transport are generally closely correlated to momentum transport in shear
flows. This so-called Reynolds analogy between advective heat or mass transport and …

The effect of modulated driving on non-rotating and rotating turbulent plane Couette flow

MW Akhtar, R Ostilla-Mónico - Journal of Fluid Mechanics, 2022 - cambridge.org
Direct numerical simulations of turbulent non-rotating and rotating plane Couette flow with a
periodically modulated plate velocity are conducted to study the effect of modulated forcing …

Taylor rolls on tour

D Feldmann, M Avila - arxiv preprint arxiv:2204.04528, 2022 - arxiv.org
Turbulent flows exhibit wide ranges of time and length scales. Their small-scale dynamics is
well understood, but less is known about the mechanisms governing the dynamics of large …

[PDF][PDF] Modulated and Rotating Turbulent Plane Couette Flow: Direct numerical simulations

MW Akhtar, R Ostilla-Mónico - arxiv preprint arxiv:2111.01046, 2021 - academia.edu
Direct numerical simulations of turbulent Rotating Plane Couette Flow (RPCF) with a
periodically modulated plate velocity are conducted to study the effect of modulated forcing …

Controlling Secondary Flows in Turbulent Taylor-Couette Flow Using Surface Heterogeneity

V Jeganathan - 2022 - uh-ir.tdl.org
Turbulent shear flows are abundant in geophysical and astrophysical systems and in
engineering-technology applications. They are often riddled with large-scale secondary …

[PDF][PDF] Taylor rolls on tour: Slow drift of turbulent large-scale structures in flows with continuous symmetries

D Feldmann, M Avila12 - researchgate.net
In Rayleigh–Bénard convection and Taylor–Couette flow cellular patterns emerge at the
onset of instability and persist as large-scale coherent structures in the turbulent regime …