Wall effects on the slow steady motion of a particle in a viscous incompressible fluid

1986 ◽  
Vol 8 (1) ◽  
pp. 23-40 ◽  
Author(s):  
T. M. Fischer ◽  
W. Wendland
1994 ◽  
Vol 04 (05) ◽  
pp. 705-732 ◽  
Author(s):  
ARIANNA PASSERINI

In this paper we prove the existence and asymptotic behavior of solutions to the equations describing the steady motion of a viscous incompressible fluid in a porous half-space. The results are compared with those already known for the Navier-Stokes model and we find, in particular, that the behavior at large distances is strongly different depending on the value of the incoming flux through the boundary.


This paper is concerned with the steady motion in two dimensions, past a fixed cylindrical body, of an incompressible fluid possessing finite viscosity. Alternatively, the fluid may be imagined to be stationary at infinity, and the cylinder to move through it with uniform velocity in a direction normal to its own axis. The problem has importance for aeronautics, since a solution would permit the calculation of what in modern aerofoil theory is termed the “ profile drag.” 2. Treating the cylinder as fixed, we take rectangular axes O x , O y , O z , of which 0 z is along its axis and O x is the direction of the undisturbed stream ( i.e ., of the flow at infinity). The motion of the fluid is then defined by component velocities u , v in the directions O x , O y respectively.


1976 ◽  
Vol 75 (4) ◽  
pp. 705-714 ◽  
Author(s):  
Joseph B. Keller ◽  
Sol I. Rubinow

Slow flow of a viscous incompressible fluid past a slender body of circular crosssection is treated by the method of matched asymptotic expansions. The main result is an integral equation for the force per unit length exerted on the body by the fluid. The novelty is that the body is permitted to twist and dilate in addition to undergoing the translating, bending and stretching, which have been considered by others. The method of derivation is relatively simple, and the resulting integral equation does not involve the limiting processes which occur in the previous work.


2016 ◽  
Vol 139 (1) ◽  
Author(s):  
Siddharth Shankar Bhatt ◽  
Amit Medhavi ◽  
R. S. Gupta ◽  
U. P. Singh

In the present investigation, problem of heat transfer has been studied during peristaltic motion of a viscous incompressible fluid for two-dimensional nonuniform channel with permeable walls under long wavelength and low Reynolds number approximation. Expressions for pressure, friction force, and temperature are obtained. The effects of different parameters on pressure, friction force, and temperature have been discussed through graphs.


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