scholarly journals Wavelet-Based Numerical Solution for MHD Boundary-Layer Flow Due to Stretching Sheet

2021 ◽  
Vol 26 (3) ◽  
pp. 84-103
Author(s):  
Harinakshi Karkera ◽  
Nagaraj N. Katagi

Abstract In this paper, a two-dimensional steady flow of a viscous fluid due to a stretching sheet in the presence of a magnetic field is considered. We proposed two new numerical schemes based on the Haar wavelet coupled with a collocation approach and quasi-linearization process for solving the Falkner-Skan equation representing the governing problem. The important derived quantities representing the fluid velocity and wall shear stress for various values of flow parameters M and β are calculated. The proposed methods enable us to obtain the solutions even for negative β, nonlinear stretching parameter, and smaller values of the magnetic parameter (M < 1) which was missing in the earlier findings. Numerical and graphical results obtained show an excellent agreement with the available findings and demonstrate the efficiency and accuracy of the developed schemes. Another significant advantage of the present method is that it does not depends on small parameters and initial presumptions unlike in traditional semi-analytical and numerical methods.

2009 ◽  
Vol 23 (20n21) ◽  
pp. 2541-2556 ◽  
Author(s):  
D. D. GANJI ◽  
H. BARARNIA ◽  
S. SOLEIMANI ◽  
E. GHASEMI

In this paper, the homotopy perturbation method (HPM) and the Padé approximation are employed to investigate the magneto-hydrodynamic (MHD) boundary layer flow over a nonlinear stretching sheet, which occurs in many important engineering applications, such as the power generator, the cooling of reactors and the design of heat exchangers. The validity of results is verified by comparison with exact results and is shown in tables and graphs. It is found that the HPM is a user-friendly, powerful tool for solving complicated problems in physics and mathematics, and that in particular it has good accuracy as compared with exact results.


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