scholarly journals Study on Lift Force acting on Single Drops in Linear Shear Flows

2007 ◽  
Vol 2 ◽  
pp. 55-62 ◽  
Author(s):  
Kohei OGAWA ◽  
Win MYINT ◽  
Shigeo HOSOKAWA ◽  
Akio TOMIYAMA
Keyword(s):  
Lift Force ◽  
Shear Flows ◽  
Linear Shear

822 Lift Force Acting on Single Bubbles in Linear Shear Flows : Part I: Experiment

2014 ◽  
Vol 2014.89 (0) ◽  
pp. _8-26_
Author(s):  
Akira MATSUNAGA ◽  
Takeshi Hamada ◽  
Shigeo HOSOKAWA ◽  
Kosuke HAYASHI ◽  
Akio TOMIYAMA
Keyword(s):  
Lift Force ◽  
Shear Flows ◽  
Linear Shear

823 Lift Force Acting on Single Bubbles in Linear Shear Flows : Part II: numerical simulation

2014 ◽  
Vol 2014.89 (0) ◽  
pp. _8-27_
Author(s):  
Takeshi HAMADA ◽  
Akira MATSUNAGA ◽  
Kosuke HAYASHI ◽  
Shigeo HOSOKAWA ◽  
Akio TOMIYAMA
Keyword(s):  
Numerical Simulation ◽  
Lift Force ◽  
Shear Flows ◽  
Linear Shear

Lift force acting on single bubbles in linear shear flows

2017 ◽  
Vol 96 ◽  
pp. 113-122 ◽  
Author(s):  
S. Aoyama ◽  
K. Hayashi ◽  
S. Hosokawa ◽  
D. Lucas ◽  
A. Tomiyama
Keyword(s):  
Lift Force ◽  
Shear Flows ◽  
Linear Shear

scholarly journals Combined electrokinetic and shear flows control colloidal particle distribution across microchannel cross-sections

Soft Matter ◽  
2021 ◽  
Author(s):  
Varun Lochab ◽  
Shaurya Prakash
Keyword(s):  
Shear Flow ◽  
Cross Sections ◽  
Lift Force ◽  
Shear Flows ◽  
Colloidal Particle ◽  
Particle Distribution ◽  
Particle Migration ◽  
Flow Parameters

We quantify and investigate the effects of flow parameters on the extent of colloidal particle migration and the corresponding electrophoresis-induced lift force under combined electrokinetic and shear flow.

Stability of linear shear flows in shallow water

1995 ◽  
Vol 303 ◽  
pp. 203-214 ◽  
Author(s):  
Charles Knessl ◽  
Joseph B. Keller
Keyword(s):  
Shallow Water ◽  
Shear Flows ◽  
Special Functions ◽  
Rigid Wall ◽  
Eigenvalue Equation ◽  
Reflection And Transmission ◽  
Transmission Coefficients ◽  
Linear Shear ◽  
The Stability ◽  
Rigid Walls

The stability or instability of various linear shear flows in shallow water is considered. The linearized equations for waves on the surface of each flow are solved exactly in terms of known special functions. For unbounded shear flows, the exact reflection and transmission coefficients R and T for waves incident on the flow, are found. They are shown to satisfy the relation |R|2= 1+ |T|2, which proves that over reflection occurs at all wavenumbers. For flow bounded by a rigid wall, R is found. The poles of R yield the eigenvalue equation from which the unstable mides can be found. For flow in a channel, with two rigid walls, the eigenvalue equation for the modes is obtained. The results are compared with previous numerical results.

scholarly journals Nature and dynamics of overreflection of Alfvén waves in MHD shear flows

2014 ◽  
Vol 80 (5) ◽  
pp. 667-685
Author(s):  
D. Gogichaishvili ◽  
G. Chagelishvili ◽  
R. Chanishvili ◽  
J. Lominadze
Keyword(s):  
Shear Flows ◽  
Alfven Waves ◽  
Wave Number ◽  
Alfvén Waves ◽  
Transient Growth ◽  
Mean Velocity ◽  
Linear Dynamics ◽  
Linear Shear ◽  
Basic Physics ◽  
Cascade Processes

Our goal is to gain new insights into the physics of wave overreflection phenomenon in magnetohydrodynamic (MHD) nonuniform/shear flows changing the existing trend/approach of the phenomenon study. The performed analysis allows to separate from each other different physical processes, grasp their interplay and, by this way, construct the basic physics of the overreflection in incompressible MHD flows with linear shear of mean velocity, U0=(Sy,0,0), that contain two different types of Alfvén waves. These waves are reduced to pseudo- and shear-Alfvén waves when wavenumber along Z-axis equals zero (i.e. when kz=0). Therefore, for simplicity, we labeled these waves as: P-Alfvén and S-Alfvén waves (P-AWs and S-AWs). We show that: (1) the linear coupling of counter-propagating waves determines the overreflection, (2) counter-propagating P-AWs are coupled with each other, while counter-propagating S-AWs are not coupled with each other, but are asymmetrically coupled with P-AWs; S-AWs do not participate in the linear dynamics of P-AWs, (3) the transient growth of S-AWs is somewhat smaller compared with that of P-AWs, (4) the linear transient processes are highly anisotropic in wave number space, (5) the waves with small streamwise wavenumbers exhibit stronger transient growth and become more balanced, (6) maximal transient growth (and overreflection) of the wave energy occurs in the two-dimensional case – at zero spanwise wavenumber.To the end, we analyze nonlinear consequences of the described anisotropic linear dynamics – they should lead to an anisotropy of nonlinear cascade processes significantly changing their essence, pointing to a need of revisiting the existing concepts of cascade processes in MHD shear flows.

111 Drag and Lift Forces Acting on Single Drops in Linear Shear Flows

2009 ◽  
Vol 2009.84 (0) ◽  
pp. _1-11_
Author(s):  
Hiroyuki HIGASHINO ◽  
Daiki ISHII ◽  
Shigeo HOSOKAWA ◽  
Akio TOMIYAMA
Keyword(s):  
Shear Flows ◽  
Linear Shear ◽  
Lift Forces ◽  
Drag And Lift

The Dynamic Motion of Single Drops Rising in Countercurrent Linear Shear Flows

2012 ◽  
Vol 45 (2) ◽  
pp. 119-122
Author(s):  
Mitsuhiro Ohta ◽  
Taku Abe ◽  
Yutaka Yoshida
Keyword(s):  
Shear Flows ◽  
Dynamic Motion ◽  
Linear Shear
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