近壁条件下圆球绕流电磁力控制数值模拟

doi:10.7527/S1000-6893.2026.33507

Abstract

Abstract:

With the near-wall effect， the variations of the flow field structure of flow around a sphere at a Reynolds number of Re=300 with wall distance are numerically investigated. The electro-magnetic force control coupled with the near-wall effect is further studied and discussed. The results demonstrate that when the sphere is far from the wall （gap ratio G/D≥6）， the near-wall effect can be neglected on the wake structures of the sphere. As the gap ratio G/D decreases， the near-wall effect is gradually enhanced， the hairpin vortex structures in the wake of the sphere rotate 180° clockwise as a whole， the vortex legs are gradually thinned， and then turn into a double-line vortex structure. The lift force gradually decreases from a positive value to zero and then to a negative value. The direction of the lift force is gradually changed from pointing away from the wall to pointing toward the wall. In addition， for the case where the sphere is at a gap ratio G/D=1.4， electro-magnetic force control in different directions is performed. With the application of a positive electro-magnetic force， the wall effect blocks the acceleration effect of the flow field by the electro-magnetic force. This leads to the pressure on the lower side of the sphere larger than that on the upper side， thereby directing the lift force away from the wall. With the application of a negative electro-magnetic force， the wall effect blocks the deceleration effect of the flow field by the electro-magnetic force. This leads to the pressure on the lower side of the sphere smaller than that on the upper side， thereby directing the lift force toward the wall.

Key words: flow control, electro-magnetic force control, flow past a sphere, wall effect, wake vortex structures

CLC Number:

V211.3

Shipei FENG, Weiguang YAO, Hui ZHANG. Numerical simulation of flow past a sphere with near‑wall effect controlled by electro-magnetic force[J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(13): 533507.

Figures/Tables 17

Fig.1

Fig.2

Fig.3

Fig.4

Table 1

Comparisons of Strouhal number St and mean lift coefficient CL¯ of a stationary sphere at Reynolds number Re=300 and gap ratio G/D=3

参数	$S t$	$C L ¯$
Kumar等^［23］	0.136	0.081 9
本研究	0.136	0.082 1

Table 1

Table 2

Grid independence verification of flow past sphere at Reynolds number Re=300 and gap ratio G/D=3.0

网格	$Δ l$	网格总数量	$S t$	$C L ¯$
A	0.014	1 822 946	0.137 2	0.082 38
B	0.012	2 127 375	0.136 1	0.082 14
C	0.010	3 133 917	0.136 0	0.082 11

Table 2

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

Fig.13

Fig.14

Fig.15

References 24

[1]	马志明，张鑫. 低雷诺数下基于等离子体激励的大展弦比机翼绕流流场控制［J］. 航空学报， 2026， 47（5）： 132359.
	MA Z M， ZHANG X. Flow field control over a high-aspect-ratio wing using a plasma actuator at low Reynolds number［J］. Acta Aeronautica et Astronautica Sinica， 2026， 47 （5）： 132359 （in Chinese）.
[2]	JOHNSON T A， PATEL V C. Flow past a sphere up to a Reynolds number of 300［J］. Journal of Fluid Mechanics， 1999， 378： 19-70.
[3]	PELEGRINI M F. Flow past a sphere at moderate Reynolds numbers［J］. Physics of Fluids， 2022， 34（11）： 113605.
[4]	WU J， SHU C. An improved immersed boundary-lattice Boltzmann method for simulating three-dimensional incompressible flows［J］. Journal of Computational Physics， 2010， 229（13）： 5022-5042.
[5]	COCETTA F， GILLARD M， SZMELTER J， et al. Stratified flow past a sphere at moderate Reynolds numbers［J］. Computers & Fluids， 2021， 226： 104998.
[6]	GRIONI M， ELASKAR S， MIRASSO A E. Numerical simulation of flow around circular cylinder near a plane wall： Effects of wall proximity， boundary layer and Reynolds number［J］. South Florida Journal of Development， 2023， 4（5）： 2099-2113.
[7]	JIANG H， JU X， GUO Z， et al. Turbulent wake characteristics for a circular cylinder in proximity to a moving wall［J］. Journal of Fluid Mechanics， 2024， 983： A18.
[8]	TEE Y H， LONGMIRE E K. Effect of fluid motions on finite spheres released in turbulent boundary layers［J］. Journal of Fluid Mechanics， 2024， 985： A28.
[9]	ZHU J， HOLMEDAL L E， MYRHAUG D， et al. Near-wall effect on flow around an elliptic cylinder translating above a plane wall［J］. Physics of Fluids， 2020， 32： 093607.
[10]	LI J H， WANG B F， QIU X， et al. Near-wall effect on vortex dynamics in the flow around a rectangular cylinder［J］. Journal of Fluid Mechanics， 2025， 1011： A21.
[11]	WU Z P， LI B W， CHEN W， et al. Numerical simulation analysis of flow around near-wall rotating cylinder［J］. Physics of Fluids， 2024， 36（8）： 083608.
[12]	HOUDROGE F， ZHAO J， TERRINGTONS， et al. Fluid-structure interaction of a sphere rolling along an inclined plane［J］. Journal of Fluid Mechanics， 2023， 962： A43.
[13]	ASHILL P. Flow control： Passive， active， and reactive flow management［J］. The Aeronautical Journal， 2001， 105（1045）： 150.
[14]	GAILITIS A， LIELAUSIS O. On a possibility to reduce the hydrodynamic resistance of a plate in an electrolyte［J］. Applied Magnetohydrodynamics， 1961， 12： 143-146.
[15]	HENOCH C， STACE J. Experimental investigation of a salt water turbulent boundary layer modified by an applied streamwise magnetohydrodynamic body force［J］. Physics of Fluids， 1995， 7（6）： 1371-1383.
[16]	KIM S J， LEE C M. Investigation of the flow around a circular cylinder under the influence of an electro-magnetic force［J］. Experiments in Fluids， 2000， 28（3）： 252-260.
[17]	KIM S J， LEE C M. Control of flows around a circular cylinder： suppression of oscillatory lift force［J］. Fluid Dynamics Research， 2001， 29（1）： 47-63.
[18]	CHEN Z， AUBRY N. Active control of cylinder wake［J］. Communications in Nonlinear Science and Numerical Simulation， 2005， 10（2）： 205-216.
[19]	ZHANG H， LIU M K， HAN Y， et al. Suppression mechanism of two-degree-of-freedom vortex-induced vibration by Lorentz forces in the uniform flow［J］. Computers & Fluids， 2017， 159： 112-122.
[20]	YAO W G， ZHANG H， JIANG D W， et al. Mode transformations of vortex shedding behind a sphere with the effect of Lorentz force［J］. Physics of Fluids， 2021， 33（12）： 123601.
[21]	YAO W G， ZHANG H， JIANG D W， et al. Drag reduction and optimization on a sphere with the effect of Lorentz force［J］. Ocean Engineering， 2023， 280： 114836.
[22]	ARIBA Y， GOUAISBAUT F. A singular perturbation approach for the control of electro-magnetic actuators［J］. IFAC-PapersOnLine， 2023， 56（2）： 6057-6062.
[23]	KUMAR A， DAS S P， TIWARI S. Wall effect on the wake characteristics of a transversely rotating sphere［J］. Physics of Fluids， 2024， 36（1）： 013611.
[24]	JEONG J， HUSSAIN F. On the identification of a vortex［J］. Journal of Fluid Mechanics， 1995， 285： 69-94.

Numerical simulation of flow past a sphere with near‑wall effect controlled by electro-magnetic force

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 17

References 24

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Lei LIU, Zhaorui ZHANG, Kun WANG, Zhihao WANG, Chen ZHU, Huijun TAN, Hexia HUANG. Research progress on aerodynamic design and flow control technologies for boundary layer ingestion inlets [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(7): 632973-632973.
[2]	Shijun SUN, Xiao XIE, Kaifu MA, Lihui SHEN. Vortex generator control mechanism and design for enhancing downstream high‑speed inlet flow capture [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(6): 132575-132575.
[3]	Zhiming MA, Xin ZHANG. Flow field control over a high-aspect-ratio wing using a plasma actuator at low Reynolds number [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(5): 132359-132359.
[4]	Yakang KONG, Haohua ZONG, Cheng WANG, Jinping LI, Zhi SU, Yun WU, Min JIA, Hua LIANG. Multiphase-modulated arc matrix control of supersonic cavity flow fields [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(5): 132504-132504.
[5]	Yanfang LIU, Hongyue WANG, Yujia E, Naiming QI. A new paradigm of intelligence-driven active mass ejection drag and heat reduction research for hypersonic vehicle boundary layer [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(2): 132171-132171.
[6]	Zhenbing LUO, Chunqiang WANG, Zhiyan GUO, Jianyu GONG, Zhijie ZHAO. First flight test of passive dual synthetic jet for short takeoff and landing lift enhancement [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(13): 533291-533291.
[7]	Jingfei LIU, Longtai HUANG, Anran JU, Chuanbao XU, Runsheng HE, Zizhuo WANG. Blowing flow control test of seaplane scaled models with slipstream effects [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(13): 133120-133120.
[8]	Xi GENG, Pengchang DONG, Qijie SUN, Zhikun SUN, He ZHU, Xiaohui QIAN, Keming CHENG, Zhiwei SHI. Tests on in-flight drag reduction using AC-DBD plasma flow control [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(13): 533206-533206.
[9]	Tianyu YANG, Zhi SU, Hua LIANG, Haohua ZONG, Yun WU. Test of flow separation control utilizing pulsed DC plasma actuation [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(13): 533178-533178.
[10]	Junheng LUO, Qingyang GUO, Lin WANG, Bing LIU, Shibin LI. Coupled flow control and heat reduction characteristics of transverse-opposing dual-jets for high-speed air rudder [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(13): 533348-533348.
[11]	Xiao WANG, Shangze LI, Yan LIU, Zizi WANG, Siyuan HUANG. Requirements and challenges of flow control technology in fighter aircraft design [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(13): 533503-533503.
[12]	Jinglei XU, Shuai HUANG, Ruifeng PAN, Yuqi ZHANG. Research on fluidic thrust vectoring nozzle: Recent developments and future trends [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(8): 631216-631216.
[13]	Zhenbing LUO, Hao WANG, Zhijie ZHAO. Theory of dual synthetic jets and its empowerment of advancements in aeronautical technology [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(5): 531821-531821.
[14]	Yahang SONG, Xin ZHANG, Zhiming MA, Zhengyu ZUO. Airfoil gust alleviation using a plasma actuator in low-speed wind tunnel test [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(22): 131975-131975.
[15]	Shilin HU, Bingzhou CHEN, Wei KANG. Lift improvement mechanism of membrane airfoil using dynamic mode decomposition [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(2): 130618-130618.