Hysteresis behavior in spanwise rotating plane Couette flow with varying rotation rates

Huang, Yuhan1; Xia, Zhenhua2; Wan, Minping3; Shi, Yipeng1; Chen, Shiyi1,2,3

2019-05-14

10.1103/PhysRevFluids.4.052401

Physical Review Fluids   影响因子和分区

2469-990X

The hysteresis behavior of spanwise rotating plane Couette flow is investigated by direct numerical simulations, where the simulations are carried out at a computational box 8 pi h x 2h x 4 pi h (here h is the half-channel height) along two opposite directions in rotation number (Ro = 2 Omega h/U-w, with Omega the constant angular velocity in the spanwise direction and U-w half of the wall velocity difference) space. When rotation speed increases, structures with two pairs of roll cells appear in 0.02 <= Ro <= 0.3. However, structures with three pairs of roll cells are observed for 0.03 <= Ro <= 0.3 when Ro decreases from 0.5. Turbulent statistics on the two branches, such as the friction Reynolds number, turbulent kinetic energy, and kinetic energy from the secondary flows, exhibit similar hysteresis behaviors during 0.03 <= Ro <= 0.3. Intuitive discussions are also made to explain the hysteresis behavior.

SCI ; EI

英语

其他

National Science Foundation of China[11822208] ; National Science Foundation of China[11772297] ; National Science Foundation of China[11672123] ; National Science Foundation of China[91752201]

Physics

Physics, Fluids & Plasmas

WOS:000468235300001

AMER PHYSICAL SOC

20192407053386

Computational fluid dynamics ; Kinetic energy ; Kinetics ; Reynolds number ; Turbulent flow

Fluid Flow, General:631.1 ; Computer Applications:723.5 ; Systems Science:961

Web of Science

1.Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China
2.Zhejiang Univ, Dept Engn Mech, Hangzhou 310027, Zhejiang, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China

Huang, Yuhan,Xia, Zhenhua,Wan, Minping,et al. Hysteresis behavior in spanwise rotating plane Couette flow with varying rotation rates[J]. Physical Review Fluids,2019,4(5).

Huang, Yuhan,Xia, Zhenhua,Wan, Minping,Shi, Yipeng,&Chen, Shiyi.(2019).Hysteresis behavior in spanwise rotating plane Couette flow with varying rotation rates.Physical Review Fluids,4(5).

Huang, Yuhan,et al."Hysteresis behavior in spanwise rotating plane Couette flow with varying rotation rates".Physical Review Fluids 4.5(2019).