Unsteady flow of a fourth-grade fluid due to an oscillating plate

2007 ◽  
Vol 42 (3) ◽  
pp. 432-441 ◽  
Author(s):  
Yongqi Wang ◽  
Wei Wu
Keyword(s):  
Unsteady Flow ◽  
Fourth Grade ◽  
Grade Fluid ◽  
Fourth Grade Fluid ◽  
Oscillating Plate

scholarly journals The unsteady flow of a fourth-grade fluid past a porous plate

2005 ◽  
Vol 41 (11-12) ◽  
pp. 1347-1353 ◽  
Author(s):  
T. Hayat ◽  
A.H. Kara ◽  
E. Momoniat
Keyword(s):  
Unsteady Flow ◽  
Porous Plate ◽  
Fourth Grade ◽  
Grade Fluid ◽  
Fourth Grade Fluid

Implication of fluid rheology on the Cattaneo–Christov heat flux theory for fourth grade nanofluid over a riga device with thermal radiation

2021 ◽  
pp. 2150189
Author(s):  
M. Ijaz Khan ◽  
F. Alzahrani
Keyword(s):  
Thermal Radiation ◽  
Thermal Relaxation ◽  
Fourth Grade ◽  
Variable Thermal Conductivity ◽  
Fluid Temperature ◽  
Optimal Homotopy Analysis Method ◽  
Homotopy Analysis ◽  
Grade Fluid ◽  
Fluid Rheology ◽  
Fourth Grade Fluid

This paper analyzes the influence of mixed convective fourth grade nanofluid flow by a stretchable Riga device in the presence variable thermal conductivity and mass diffusivity. Heat and mass transportation are considered with Cattaneo–Christov (CC) model. Thermal radiation and dissipation are also taken in the energy expression. Suitable transformation is employed to reduce partial differential system into nonlinear ordinary system. The governing nonlinear expression is solved via optimal homotopy analysis method. Impact of different physical variables is discussed via graphs. Velocity profile is enhanced for higher values of cross viscous parameter and fourth grade fluid variable. Fluid temperature enhances for higher estimation of thermal relaxation parameter but reverse behavior is seen for solutal concentration variable on nanoparticle concentration.

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