Perturbation Technique
1. Entropy generation analysis of non-newtonian fluid in rotational flow

Abbas Kosarineia

Volume 9, Issue 1 , Summer and Autumn 2019, , Pages 133-144

Abstract
  The entropy generation analysis of non-Newtonian fluid in rotational flow between two concentric cylinders is examined when the outer cylinder is fixed and the inner cylinder is revolved with a constant angular speed. The viscosity of non-Newtonian fluid is considered at the same time interdependent ...  Read More

Perturbation Technique
2. A study on free convective heat and mass transfer flow through a highly porous medium with radiation, chemical reaction and Soret effects

shaik Mohammed ibrahim; Kanna Suneetha; G.V Ramana Reddy

Volume 8, Issue 2 , Winter and Spring 2019, , Pages 121-132

Abstract
  The paper addresses the effects of Soret on unsteady free convection flow of a viscous incompressible fluid through a porous medium with high porosity bounded by a vertical infinite moving plate under the influence of thermal radiation, chemical reaction, and heat source. The fluid is considered to be ...  Read More

Perturbation Technique
3. A study on the use of perturbation technique for analyzing the nonlinear forced response of piezoelectric microcantilevers

M. Zamanian; M. Hadilu; B. Firouzi

Volume 5, Issue 2 , Winter and Spring 2016, , Pages 161-172

Abstract
  In this paper, a comparison is made between direct and indirect perturbation approaches to solve the non-linear vibration equations of a piezoelectrically actuated cantilever microbeam. In this comparison, the equation of motion is considered according to Euler-Bernoulli theory with considering the non-linear ...  Read More