Results 71 to 80 of about 705 (201)

Analytical investigation of laminar flow through expanding or contracting gaps with porous walls

open access: yesPropulsion and Power Research, 2014
Laminar, isothermal, incompressible and viscous flow in a rectangular domain bounded by two moving porous walls, which enable the fluid to enter or exit during successive expansions or contractions is investigated analytically using optimal homotopy ...
M. Jafaryar   +4 more
doaj   +1 more source

Improved Solutions of OHAM Approximate Procedure for Classes of Nonlinear ODEs

open access: yesContemporary Mathematics
The primary purpose of this study is to apply the Optimal Homotopy Asymptotic Method (OHAM) to various nonlinear initial value problems of different orders to evaluate its accuracy, convergence, and computational efficiency. OHAM is considered a highly effective technique for solving nonlinear differential equations and is commonly used in scientific ...
Mohammed Jasim   +5 more
openaire   +1 more source

Unsteady shrinking embedded horizontal sheet subjected to inclined Lorentz force and Joule heating, an analytical solution

open access: yesResults in Physics, 2018
This article focuses on the 2D flow of an incompressible Casson fluid over an unsteady shrinking horizontal sheet under inclined Lorentz force and Joule heating.
Emran Khoshrouye Ghiasi, Reza Saleh
doaj   +1 more source

A New Optimal Homotopy Asymptotic Method for Fractional Optimal Control Problems

open access: yesInternational Journal of Differential Equations, 2021
Solving fractional optimal control problems (FOCPs) with an approximate analytical method has been widely studied by many authors, but to guarantee the convergence of the series solution has been a challenge.
Oluwaseun Olumide Okundalaye   +1 more
doaj   +1 more source

Magnetic micro‐fluidics in 3D microchannel at the micro‐scale: Unlocking nano‐porous electrode potential for lithium‐ion micro‐batteries

open access: yesEnergy Storage, Volume 6, Issue 4, June 2024.
Abstract Enhancing the nanosized‐electrolyte's characteristics in Lithium‐driven micro‐batteries (LIMBs) is indispensable to improve the overall efficiency, security, and lifespan of these energy devices, designing nano‐sized electrolyte with a wide electrochemical stability window while keeping them compatible with electrode materials is one of the ...
Adeel Ashraf   +6 more
wiley   +1 more source

Dual Approximate Solutions of the Unsteady Viscous Flow over a Shrinking Cylinder with Optimal Homotopy Asymptotic Method

open access: yesAdvances in Mathematical Physics, 2014
The unsteady viscous flow over a continuously shrinking surface with mass suction is investigated using the optimal homotopy asymptotic method (OHAM). The nonlinear differential equation is obtained by means of the similarity transformation.
Vasile Marinca, Remus-Daniel Ene
doaj   +1 more source

Utilizing the Optimal Auxiliary Function Method for the Approximation of a Nonlinear Long Wave System considering Caputo Fractional Order

open access: yesComplexity, Volume 2024, Issue 1, 2024.
In this article, we explore the utilization of the Caputo derivative and the Riemann–Liouville (R–L) fractional integral to analyze the optimal auxiliary function method for approximating fractional nonlinear long waves. Approximate long wave equation with a distinct dispersion relation offers the most accurate description of shallow water wave ...
Aaqib Iqbal   +5 more
wiley   +1 more source

Errors of simulated results for methods HPM [13], TFM [15] and OHAM [17] in Example 4.

open access: yes, 2014
Errors of simulated results for methods HPM [13], TFM [15] and OHAM [17] in Example 4.
Zhimin Hong (605944)   +2 more
core   +1 more source

Semi-Analytical Solution of Two-Dimensional Viscous Flow through Expanding/Contracting Gaps with Permeable Walls

open access: yesMathematical and Computational Applications, 2021
In this research, the analytical methods of the differential transform method (DTM), homotopy asymptotic method (HAM), optimal homotopy asymptotic method (OHAM), Adomian decomposition method (ADM), variation iteration method (VIM) and reproducing kernel ...
Mohammad Mehdi Rashidi   +8 more
doaj   +1 more source

Comparisons of OHAM, Exact and ADM Results of un(t) at different values of n at t = 5.1.

open access: yes, 2015
E* = |OHAM—Exact|Comparisons of OHAM, Exact and ADM Results of un(t) at different values of n at t = 5.1.
Sharidan Shafie (397535)   +4 more
core   +1 more source

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