浙江大学 航空航天学院工程力学系,浙江,杭州,310027
夏振华(1983-), 男, 湖北人, 研究员, 研究方向:湍流理论与数值模拟, 计算流体力学, 空气动力学.E-mail:xiazh@zju.edu.cn
纸质出版:2020
移动端阅览
夏振华. 展向旋转平板Couette湍流中的多态现象[J]. 空气动力学学报, 2020, 38(1): 118-127.
XIA Zhenhua. Multiple states in spanwise rotating plane Couette flows[J]. 2020, 38(1): 118-127.
夏振华. 展向旋转平板Couette湍流中的多态现象[J]. 空气动力学学报, 2020, 38(1): 118-127. DOI: 10.7638/kqdlxxb-2019.0105.
XIA Zhenhua. Multiple states in spanwise rotating plane Couette flows[J]. 2020, 38(1): 118-127. DOI: 10.7638/kqdlxxb-2019.0105.
展向旋转平板Couette湍流(Spanwise rotating plane Couette flow,RPCF)是旋转壁湍流的标模问题之一,在过去的几十年里,被广泛用来研究旋转对壁湍流的统计和流动结构的影响。近些年,作者及其合作者就该问题开展了一系列直接数值模拟研究工作。该研究不仅发现了旋转在低旋转数和高旋转数时对流动结构和统计的不同影响,还首次在RPCF中发现了多湍流态现象:即在相同的控制参数下,流动可以处在两种不同的湍流态上,这两种不同的湍流态的流动结构和湍流统计差别显著。还发现该多态现象可以在很大的旋转数范围里存在。进一步分析大尺度二次流在不同态的能量传输中的作用,发现在二次流较弱的流态下,二次流起的作用相对较小,能量很大一部分直接从平均流传到剩余场;而当二次流较强时,二次流起到一个能量传输纽带作用。该分析也从侧面验证了大尺度结构在多态现象中占据重要地位的猜想。
As one of the canonical flow problems in wall-bounded turbulence with system rotation
spanwise rotating plane Couette flow (RPCF) has been studied a lot in the past decades to investigate the rotation effect on the turbulent statistics and flow structures. Recently
the author and his collaborators had performed a series of direct numerical simulations on this flow problem. The results showed that the strong rotation and weak rotation have different impact on the flow structures and turbulent statistics. Furthermore
they have found that multiple states do exist in RPCF. That is
at the same control parameters (Reynolds number and Rotation number)
the flow could be at two different flow states
and the flow structures and turbulent statistics at these two states show obvious differences. Their simulation results also showed that the multiple states could exist over a wide rotation number range. Further analysis on the role of secondary flows showed that the secondary flows play different roles in the energy transfer at different states. If the secondary flows are very strong
most of the energy from the mean field will first transfer to the secondary flow and then transfer to the residual field
and the secondary flows acts as a kinetic energy bridge that transfers the energy from the mean field to the residual field. On the other hand
if the secondary flows are not strong enough
most of the kinetic energy will transfer from the mean field to the residual field directly. The present results support the previous conjecture that the large-scale flow structures (the secondary flows) play a very critical role at the multiple states.
JOHNSTON J P. Effects of system rotation on turbulence structure:a review relevant to turbomachinery flows[J]. Intl J Rotating Mach, 1998, 4:97-112.
JAKIRLIC S, HANJALIC K, TROPEA C. Modeling rotating and swirling turbulent flows:aperpetual challenge[J]. AIAA J, 2002, 40(10):1984-1996.
TILLMARK N, ALFREDSSON P H.Experiments on rotating plane Couette flow[M]//GAVRILAKIS S, MACHIELS L, MONKEWITZ P A, Advances in Turbulence VI, Kluwer, Dordrecht, 1996: 391-394.
ALFREDSSON P H, TILLMARK N. Instability, transition and turbulence in plane Couette flow with system rotation[M]//MULLIN T, KERSWELL R R. Laminar Turbulent Transition and Finite Amplitude Solutions, Springer, Berlin, 2005: 173-193.
GAI J, XIA Z H, CAI Q D, et al. Turbulent statistics and flow structures inspanwise-rotating turbulent plane Couette flows[J]. Phys Rev Fluids, 2016, 1:054401.
HIWATASHI K, ALFREDSSON P H, TILLMARK N, et al. Experimental observations of instabilities in rotating plane Couette flow[J]. Phys Fluids, 2007, 19:048103.
TSUKAHARA T, TILLMARK N, ALFREDSSON P H. Flow regimes in a plane Couette flow with system rotation[J]. J Fluid Mech, 2010, 648:5-33.
SURYADI A, SEGALINI A, ALFREDSSON P H. Zero absolute vorticity:insight from experiments in rotating laminar plane Couette flow[J]. Phys Rev E, 2014, 89:033003.
SURYADI A, TILLMARK N, ALFREDSSON P H. Velocity measurements of streamwise roll cells in rotating plane Couette flow[J]. Exp Fluids, 2013, 54:1617.
KAWATA T, ALFREDSSON P H. Turbulent rotating plane Couette flow:Reynolds and rotation number dependency of flow structure and momentum transport[J]. Phys Rev Fluids, 2016, 1:034402.
KAWATA T, ALFREDSSON P H. Experiments in rotating plane Couette flow:Momentum transport by coherent roll-cell structures and zero-absolute-vorticity state[J]. J Fluid Mech, 2016, 791:191-213.
KAWATA T, ALFREDSSON P H. Scale interactions in turbulent rotating planar Couette flows:insight through the Reynolds stress transport[J]. J Fluid Mech, 2019, 879:255-295.
BECH K H, ANDERSSON H I. Growth and decay of longitudinal roll cells in rotating turbulent plane Couette flow[A]. In Advances in Turbulence VI, edited by S. Gavrilakis, L. Machiels, and P. A. Monkewitz (Kluwer, Dordrecht), 1996: 91-94.
BECH K H, ANDERSSON H I. Secondary flow in weakly rotating turbulent plane Couette flow[J]. J Fluid Mech, 1996, 317:195-214.
BECH K H, ANDERSSON H I. Turbulent plane Couette flow subject to strong system rotation[J]. J Fluid Mech, 1997, 347:289-314.
BARRI M, ANDERSSON H I. Anomalous turbulence in rapidly rotating plane Couette flow[M]//PALMA J M L M, SILVA L A, Advances in Turbulence XI, 100-102.
BARRI M, ANDERSSON H I. Computer experiments on rapidly rotating plane Couette flow[J]. Commun Comput Phys, 2010, 7:683-717.
SALEWSKI M, ECKHARDT B. Turbulent states in plane Couette flow with rotation[J]. Phys Fluids, 2015, 27:045109.
XIA Z H, SHI Y P, CAI Q D, et al. Multiple states in turbulent plane Couette flow with system rotation[J]. J Fluid Mech, 2018, 837:477-490.
HUANG Y H, XIA Z H, WAN M P, et al. Numerical investigation of plane Couette flow with weak spanwise rotation[J]. Sci China-Phys Mech Astron, 2019, 62:044711.
HUANG Y H, XIA Z H, WAN M P, et al. Hysteresis behavior in spanwise rotating plane Couette flow with varying rotation rates[J]. Phys Rev Fluids, 2019, 4:052401(R).
XIA Z H, SHI Y P, WAN M P, et al. Role of the large-scale structures inspanwise rotating plane Couette flow with multiple states[J]. Phys Rev Fluids, 2019, 4:104606.
WILCOX D C. Turbulence Modeling for CFD[B]. DCW Industries, 2006, P5.
HUISMAN S G, VAN DER VEEN R C A, SUN C, et al. Multiple states in highly turbulent Taylor-Couette flow[J]. Nat Commun, 2014, 5:3820.
XIA Z H. Multiple states in turbulence[J]. Chin Sci Bull, 2019, 64:373-383. (in Chinese)
CAI Q D, GAI J, SUN Z L, et al. Quad-decomposition of velocity field inspanwise-rotating turbulent plane Couette flows[J]. Int J Nonlin Sci Num Simu, 2016, 17(6):305-314.
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621