THE UNSTEADY FLOW OF VISCO-ELASTIC MAXWELL FLUID OF SECOND ORDER DUE TO A PERIODIC PRESSURE GRADIENT THROUGH A RECTANGULAR DUCT

2017 ◽  
Vol 12 (1) ◽  
pp. 57-66
Author(s):  
Pravangsu Sekhar Das
Keyword(s):  
Unsteady Flow ◽  
Pressure Gradient ◽  
Maxwell Fluid ◽  
Second Order ◽  
Rectangular Duct ◽  
Periodic Pressure

scholarly journals On the flow of MHD generalized maxwell fluid via porous rectangular duct

Open Physics ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 989-1002
Author(s):  
Aamir Farooq ◽  
Muhammad Kamran ◽  
Yasir Bashir ◽  
Hijaz Ahmad ◽  
Azeem Shahzad ◽  
...  
Keyword(s):  
Fluid Model ◽  
Maxwell Fluid ◽  
Initial Boundary ◽  
Initial Boundary Value Problem ◽  
Rectangular Duct ◽  
Modified Darcy’S Law ◽  
Initial Boundary Value ◽  
Generalized Maxwell Fluid ◽  
Limiting Case ◽  
The Impact

Abstract The purpose of this proposed investigation is to study unsteady magneto hydrodynamic (MHD) mixed initial-boundary value problem for incompressible fractional Maxwell fluid model via oscillatory porous rectangular duct. Considering the modified Darcy’s law, the problem is simplified by using the method of the double finite Fourier sine and Laplace transforms. As a limiting case of the general solutions, the same results can be obtained for the classical Maxwell fluid. Also, the impact of magnetic parameter, porosity of medium, and the impact of various material parameters on the velocity profile and the corresponding tangential tensions are illuminated graphically. At the end, we will give the conclusion of the whole paper.

scholarly journals Steady and unsteady flow of non-newtonian fluid in curved pipe with triangular

2006 ◽  
Vol 3 (3) ◽  
pp. 470-480
Author(s):  
Baghdad Science Journal
Keyword(s):  
Unsteady Flow ◽  
Pressure Gradient ◽  
Secondary Flow ◽  
Cross Section ◽  
Numerical Study ◽  
Equations Of Motion ◽  
Curved Pipe ◽  
First Case ◽  
Stable Flow ◽  
Flow Cross

This paper deals with numerical study of the flow of stable and fluid Allamstqr Aniotina in an area surrounded by a right-angled triangle has touched particularly valuable secondary flow cross section resulting from the pressure gradient In the first case was analyzed stable flow where he found that the equations of motion that describe the movement of the fluid

Prediction of Turbulent Boundary Layers With a Second-Moment Closure: Part I—Effects of Periodic Pressure Gradient, Wall Transpiration, and Free-Stream Turbulence

1993 ◽  
Vol 115 (1) ◽  
pp. 56-63 ◽  
Author(s):  
N. Shima
Keyword(s):  
Pressure Gradient ◽  
Boundary Layers ◽  
Free Stream ◽  
Moment Closure ◽  
Second Moment ◽  
Free Stream Turbulence ◽  
Periodic Pressure ◽  
Second Moment Closure ◽  
Oscillating Boundary ◽  
Present Part

The purpose of this two-part paper is to assess the performance of a second-moment closure applicable up to a wall. In the present part, the turbulence model is applied to the boundary layers with periodic pressure gradient, with wall transpiration and with free-stream turbulence. The predictions are shown to be in good agreement with experiments and a direct simulation. In particular, a tendency towards relaminarization and a subsequent retransition in the oscillating boundary layer are faithfully reproduced, and the effect of the length scale of free-stream turbulence is correctly captured.

Exact Solution of the Navier-Stokes Equations for the Fully Developed, Pulsating Flow in a Rectangular Duct With a Constant Cross-Sectional Velocity1

2003 ◽  
Vol 125 (2) ◽  
pp. 382-385 ◽  
Author(s):  
S. Tsangaris ◽  
N. W. Vlachakis
Keyword(s):  
Pressure Gradient ◽  
Stokes Equations ◽  
Rectangular Cross Section ◽  
Gradient Flow ◽  
Pulsating Flow ◽  
Artificial Kidney ◽  
Navier Stokes ◽  
Rectangular Duct ◽  
Cross Sectional ◽  
Navier Stokes Equations

The Navier-Stokes equations have been solved in order to obtain an analytical solution of the fully developed laminar flow in a duct having a rectangular cross section with two opposite equally porous walls. We obtained solutions both for the case of steady flow as well as for the case of oscillating pressure gradient flow. The pulsating flow is obtained by the superposition of the steady and oscillating pressure gradient solutions. The solution has applications for blood flow in fiber membranes used for the artificial kidney.

Flow on oscillating rectangular duct for Maxwell fluid

2012 ◽  
Vol 33 (6) ◽  
pp. 717-730 ◽  
Author(s):  
M. Nazar ◽  
F. Shahid ◽  
M. Saeed Akram ◽  
Q. Sultan
Keyword(s):  
Maxwell Fluid ◽  
Rectangular Duct
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