Two-dimensional numerical study of flow dynamics of a nucleated cell tethered under shear flow

2014 ◽  
Vol 119 ◽  
pp. 236-244 ◽  
Author(s):  
Zheng Yuan Luo ◽  
Long He ◽  
Shu Qi Wang ◽  
Savas Tasoglu ◽  
Feng Xu ◽  
...  
Keyword(s):  
Shear Flow ◽  
Numerical Study ◽  
Flow Dynamics ◽  
Two Dimensional

scholarly journals A numerical study of the motion of a neutrally buoyant cylinder in two dimensional shear flow

2013 ◽  
Vol 87 ◽  
pp. 57-66 ◽  
Author(s):  
Tsorng-Whay Pan ◽  
Shih-Lin Huang ◽  
Shih-Di Chen ◽  
Chin-Chou Chu ◽  
Chien-Cheng Chang
Keyword(s):  
Shear Flow ◽  
Numerical Study ◽  
Two Dimensional ◽  
Neutrally Buoyant

scholarly journals The motion of a neutrally buoyant particle of an elliptic shape in two dimensional shear flow: A numerical study

2015 ◽  
Vol 27 (8) ◽  
pp. 083303 ◽  
Author(s):  
Shih-Lin Huang ◽  
Shih-Di Chen ◽  
Tsorng-Whay Pan ◽  
Chien-Cheng Chang ◽  
Chin-Chou Chu
Keyword(s):  
Shear Flow ◽  
Numerical Study ◽  
Two Dimensional ◽  
Neutrally Buoyant

Numerical Study of the Turbulent Wake of a Towed or Auto-Propelled Axisymmetrical Body in a Stratified Medium Using LES-VMS

2013 ◽  
Author(s):  
B. Sainte-Rose ◽  
X. Lenhardt ◽  
O. Allain ◽  
A. Dervieux
Keyword(s):  
Numerical Study ◽  
Three Dimensional ◽  
Turbulent Wake ◽  
Flow Dynamics ◽  
Stratified Medium ◽  
Two Dimensional ◽  
Multi Scale ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Good Agreement

Numerical simulations of close and far wakes behind an axisymmetrical body in a stratified medium are carried out. Towed and auto-propelled regimes are considered. The parameters of the flow are Pr = 7, Re = 10000 based on the diameter of the cylinder and F = 25. Turbulence is modelled with a Large Eddy Simulation - Variational Multi-Scale approach. Realistic results are obtained for the towed case where the so-called three-dimensional (3D), non-equilibrium (NEQ) and quasi two-dimensional (Q2D) regimes are exhibited with very good agreement with the experiments. In addition, the effect of auto-propulsion on the flow dynamics is satisfactorily addressed.

Numerical Study of Surfactant-Laden Drop-Drop Interactions

2011 ◽  
Vol 10 (2) ◽  
pp. 453-473 ◽  
Author(s):  
Jian-Jun Xu ◽  
Zhilin Li ◽  
John Lowengrub ◽  
Hongkai Zhao
Keyword(s):  
Shear Flow ◽  
Level Set ◽  
Capillary Number ◽  
Minimum Distance ◽  
Numerical Study ◽  
Contact Region ◽  
Monotone Function ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Immersed Interface

AbstractIn this paper, we numerically investigate the effects of surfactant on drop-drop interactions in a 2D shear flow using a coupled level-set and immersed interface approach proposed in (Xu et al., J. Comput. Phys., 212 (2006), 590-616). We find that surfactant plays a critical and nontrivial role in drop-drop interactions. In particular, we find that the minimum distance between the drops is a non-monotone function of the surfactant coverage and Capillary number. This non-monotonic behavior, which does not occur for clean drops, is found to be due to the presence of Marangoni forces along the drop interfaces. This suggests that there are non-monotonic conditions for coalescence of surfactant-laden drops, as observed in recent experiments of Leal and co-workers. Although our study is two-dimensional, we believe that drop-drop interactions in three-dimensional flows should be qualitatively similar as the Maragoni forces in the near contact region in 3D should have a similar effect.

Flow Past a Forced Oscillating Cylinder: A Three-Dimensional Numerical Study

2019 ◽  
Author(s):  
Huan Ping ◽  
Yan Bao ◽  
Dai Zhou ◽  
Zhaolong Han
Keyword(s):  
Stokes Equations ◽  
Numerical Study ◽  
Three Dimensional ◽  
Flow Dynamics ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Navier Stokes Equations ◽  
Flow Past ◽  
Flow Past A Cylinder ◽  
Two Dimensional Flow

Abstract In this paper, we conducted a three-dimensional investigation of flow past a cylinder undergoing forced oscillation. The flow configuration is similar to the work of Blackburn & Henderson (1999) [1], in which Reynolds number equals to 500 and a fixed motion amplitude of A/D = 0.25. The oscillation frequencies are varied in the range near to the natural shedding frequency of a stationary cylinder. The flow dynamics are governed by Navier-Stokes equations and the solutions are obtained by employing high-order spectral/hp element method. It is found that the flow dynamics are significantly distinguished from the study of two-dimensional flow by Blackburn & Henderson (1999) [1]. The values of hydrodynamic forces are smaller compared to that in the two-dimensional study. However, lock-in boundary we identified is broader. In addition, a different type of hysteresis loop of energy transfer coefficient is obtained.

Numerical Study on Two-dimensional Magnetic Photonic Crystals Made of Magnetized Ferrites

PIERS Online ◽  
2007 ◽  
Vol 3 (3) ◽  
pp. 305-307 ◽  
Author(s):  
Jie Xu ◽  
Ping Chen ◽  
Yue Shi ◽  
Xin-Yi Ji ◽  
Ai-Min Jiang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Numerical Study ◽  
Two Dimensional ◽  
Magnetic Photonic Crystals
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