Spatio-temporal dynamics of turbulent separation bubbles

W Wu, C Meneveau, R Mittal - Journal of Fluid Mechanics, 2020 - cambridge.org
The spatio-temporal dynamics of separation bubbles induced to form in a fully developed
turbulent boundary layer (with Reynolds number based on momentum thickness of the …

The turbulent flow over the BARC rectangular cylinder: a DNS study

A Chiarini, M Quadrio - Flow, Turbulence and Combustion, 2021 - Springer
A direct numerical simulation (DNS) of the incompressible flow around a rectangular
cylinder with chord-to-thickness ratio 5: 1 (also known as the BARC benchmark) is …

Structure of turbulence in the flow around a rectangular cylinder

A Chiarini, D Gatti, A Cimarelli… - Journal of Fluid …, 2022 - cambridge.org
The separating and reattaching turbulent flow past a rectangular cylinder is studied to
describe how small and large scales contribute to the sustaining mechanism of the velocity …

On the structure of the self-sustaining cycle in separating and reattaching flows

A Cimarelli, A Leonforte, D Angeli - Journal of Fluid Mechanics, 2018 - cambridge.org
The separating and reattaching flows and the wake of a finite rectangular plate are studied
by means of direct numerical simulation data. The large amount of information provided by …

Direct numerical simulation of the flow around a rectangular cylinder at a moderately high Reynolds number

A Cimarelli, A Leonforte, D Angeli - Journal of Wind Engineering and …, 2018 - Elsevier
Abstract We report a Direct Numerical Simulation (DNS) of the flow around a rectangular
cylinder with a chord-to-thickness ratio B/D= 5 and Reynolds number R e= 3000. Global and …

Vortex shedding induced vibration of thin strip in confined rectangular channel

B Zhang, S Gong, S Dong, Z Xiong, Z Zhang - Progress in Nuclear Energy, 2021 - Elsevier
To study the basic behavior of vortex shedding of spacer grids, both experiments and
numerical simulations of a single flat plate with a high chord-to-thickness ratio in a confined …

Effect of the inlet-to-outlet key width ratio of Piano Key Weir on its hydraulic behaviour

D Singh, M Kumar - Flow Measurement and Instrumentation, 2023 - Elsevier
Abstract The Piano Key Weir (PKW) is an ungated type of spillway, ie, a novel evolution over
the traditional labyrinth weir. It allows the reservoirs to operate with elevated supply levels …

An almost subharmonic instability in the flow past rectangular cylinders

A Chiarini, M Quadrio, F Auteri - Journal of Fluid Mechanics, 2022 - cambridge.org
The three-dimensional instability of the flow past a 5: 1 rectangular cylinder is investigated
via Floquet analysis and direct numerical simulations. A quasi-subharmonic (QS) unstable …

Research on floating body resistance characteristics of floating photovoltaic and analysis of influencing factors

H Wang, X Liu, K Wang - Frontiers in Marine Science, 2024 - frontiersin.org
The floating structure of floating photovoltaic can be attached by aquatic organisms,
resulting in changes in the draft depth of the floating body, which can affect the resistance …

Unsteady hydrodynamic behavior at piano key weirs

FJM Denys, GR Basson - Journal of Hydraulic Engineering, 2020 - ascelibrary.org
Piano key weirs (PKWs) are nonlinear hydraulic structures that exhibit unsteady hydraulic
phenomena. A study incorporating both physical and numerical modeling was undertaken to …