# Statistics and structure of spanwise rotating turbulent channel flow at moderate Reynolds numbers

@article{Brethouwer2017StatisticsAS, title={Statistics and structure of spanwise rotating turbulent channel flow at moderate Reynolds numbers}, author={Geert Brethouwer}, journal={Journal of Fluid Mechanics}, year={2017}, volume={828}, pages={424 - 458} }

A study of fully developed plane turbulent channel flow subject to spanwise system rotation through direct numerical simulations is presented. In order to study both the influence of the Reynolds number and spanwise rotation on channel flow, the Reynolds number $Re=U_{b}h/\unicode[STIX]{x1D708}$ is varied from a low 3000 to a moderate 31 600 and the rotation number $Ro=2\unicode[STIX]{x1D6FA}h/U_{b}$ is varied from 0 to 2.7, where $U_{b}$ is the mean bulk velocity, $h$ the channel half-gap…

## 28 Citations

### Passive scalar transport in rotating turbulent channel flow

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 2018

Passive scalar transport in turbulent channel flow subject to spanwise system rotation is studied by direct numerical simulations. The Reynolds number $Re=U_{b}h/\unicode[STIX]{x1D708}$ is fixed at…

### Scale interactions in turbulent rotating planar Couette flow: insight through the Reynolds stress transport

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 2019

In turbulent planar Couette flow under anticyclonic spanwise system rotation, large-scale roll-cell structures arise due to a Coriolis-force-induced instability. The structures are superimposed on…

### Turbulent flow in curved channels

- Physics, EngineeringJournal of Fluid Mechanics
- 2021

Abstract Fully developed turbulent flow in channels with mild to strong longitudinal curvature is studied by direct numerical simulations. The Reynolds based on the bulk mean velocity and channel…

### Reconsideration of spanwise rotating turbulent channel flows via resolvent analysis

- PhysicsJournal of Fluid Mechanics
- 2018

We study the effect of spanwise rotation in turbulent channel flow at both low and high Reynolds numbers by employing the resolvent formulation proposed by McKeon & Sharma (J. Fluid Mech., vol. 658,…

### A two-dimensional-three-component model for spanwise rotating plane Poiseuille flow

- PhysicsJournal of Fluid Mechanics
- 2019

Spanwise rotating plane Poiseuille flow (RPPF) is one of the canonical flow problems to study the effect of system rotation on wall-bounded shear flows and has been studied a lot in the past. In the…

### Turbulent ﬂow in curved channels

- Physics
- 2021

Fully developed turbulent ﬂow in channels with mild to strong longitudinal curvature is studied by direct numerical simulations. The Reynolds based on the bulk mean velocity and channel half-width δ…

### Wall-modeled large-eddy simulations of spanwise rotating turbulent channels—Comparing a physics-based approach and a data-based approach

- Physics
- 2019

We develop wall modeling capabilities for large-eddy simulations (LESs) of channel flow subjected to spanwise rotation. The developed models are used for flows at various Reynolds numbers and…

### Large eddy simulation of spanwise rotating turbulent channel flow with dynamic variants of eddy viscosity model

- Physics
- 2018

A fully developed spanwise rotating turbulent channel flow has been numerically investigated utilizing large-eddy simulation. Our focus is to assess the performances of the dynamic variants of eddy…

### Rotation correction of wall function and velocity structure under the couple effects of buoyancy force and rotating effects at the entry section of the smooth straight channel

- Engineering, PhysicsInternational Journal of Heat and Fluid Flow
- 2019

### Flow structures in spanwise rotating plane Poiseuille flow based on thermal analogy

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 2021

Abstract The analogy between rotating shear flow and thermal convection suggests the existence of plumes, inertial waves and plume currents in plane Poiseuille flow under spanwise rotation. The…

## References

SHOWING 1-10 OF 59 REFERENCES

### Direct numerical simulation of turbulent channel flow with spanwise rotation

- PhysicsJournal of Fluid Mechanics
- 2015

A series of direct numerical simulations of turbulent channel flow with spanwise rotation at fixed global friction Reynolds number is performed to investigate the rotation effects on the mean…

### Laminarization mechanisms and extreme-amplitude states in rapidly rotating plane channel flow

- Physics, EngineeringJournal of Fluid Mechanics
- 2013

Abstract Fully developed plane channel flow rotating in the spanwise direction has been studied analytically and numerically. Linear stability analysis reveals that all cross-flow modes are stable…

### Turbulence characteristics of two-dimensional channel flow with system rotation

- PhysicsJournal of Fluid Mechanics
- 2005

Turbulence quantities have been measured for a low-Reynolds-number fully developed two-dimensional channel flow subjected to system rotation. Turbulence intensities, Reynolds shear stress,…

### The minimal flow unit in complex turbulent flows

- Physics, Engineering
- 2016

Direct numerical simulations of spanwise-rotating periodic turbulent channel flow were conducted for three rotation numbers: Rob = 0, 0.2, and 0.5 at a Reynolds number of 8000 based on laminar…

### The intermittency boundary in stratified plane Couette flow

- PhysicsJournal of Fluid Mechanics
- 2015

We study stratified turbulence in plane Couette flow using direct numerical simulations. Two external dimensionless parameters control the dynamics, the Reynolds number $\mathit{Re}=Uh/{\it\nu}$ and…

### Direct numerical simulations of rotating turbulent channel flow

- PhysicsJournal of Fluid Mechanics
- 2008

Fully developed rotating turbulent channel flow has been studied, through direct numerical simulations, for the complete range of rotation numbers for which the flow is turbulent. The present…

### Direct simulations of low-Reynolds-number turbulent flow in a rotating channel

- PhysicsJournal of Fluid Mechanics
- 1993

Direct numerical simulations of fully developed pressure-driven turbulent flow in a rotating channel have been performed. The unsteady Navier–Stokes equations were written for flow in a constantly…

### Simulation of Rotating Channel Flow With Heat Transfer: Evaluation of Closure Models

- Physics, Engineering
- 2016

A direct numerical simulation (DNS) of spanwise-rotating turbulent channel ﬂow was conducted for four rotation numbers: Ro b ¼ 0, 0.2, 0.5, and 0.9 at a Reynolds number of 8000 based on laminar…

### Effects of Taylor-Görtler vortices on turbulent flows in a spanwise-rotating channel

- Physics, Environmental Science
- 2016

Fully developed turbulent channel flow with system rotation in the spanwise direction has been studied by direct numerical simulation at Rem = 2800 and 7000 with 0 ≤ Rom ≤ 0.5. The width of the…

### Turbulence statistics in fully developed channel flow at low Reynolds number

- PhysicsJournal of Fluid Mechanics
- 1987

A direct numerical simulation of a turbulent channel flow is performed. The unsteady Navier-Stokes equations are solved numerically at a Reynolds number of 3300, based on the mean centreline velocity…