Results 21 to 30 of about 5,620,047 (250)

Approximate analytical solution of the Boussinesq equation [PDF]

open access: yes, 1999
A new approximate solution of the one-dimensional Boussinesq equation is presented for a semi-infinite aquifer when the hydraulic head at the source is an arbitrary function of time. Estimates for recharge, discharge, and elevation of the water table are
Lockington, D   +11 more
core   +2 more sources

Approximate analytical solution of linear and nonlinear fractional delay differential equations using new variational iteration method [PDF]

open access: yes, 2020
In this paper, an approximate analytical method, New Variational Iteration Method (NVIM) is introduced in this paper for the approximate analytical solution of Fractional Delay Differential Equations (FDDE).
Srivastava, Vineet, Vineet Srivastava
core   +1 more source

Slowly rotating solution of quadratic gravity: An analytical approximation method

open access: yesNuclear Physics B, 2023
As we know, it is a nontrivial task to obtain analytical solutions for various gravitational theories. In this work, we obtain an analytical approximate rotating black hole solution for quadratic gravity (QG).
S.N. Sajadi, S.H. Hendi
doaj   +1 more source

Approximate analytical solution of the Graetz problem

open access: yes, 2019
Approximate analytical solution of the Graetz problem (1st ...
Anton Eremin (7482458)
core   +2 more sources

Approximate analytical solution of squeezing unsteady nanofluid flow [PDF]

open access: yes, 2015
In this paper, the Duan-Rach Approach (DRA) was used to obtain an approximate analytical solution of squeezing unsteady nanofluid flow. An approximate analytical solution can be obtained for a velocity and a temperature profile.
haiahem, ammar
core   +2 more sources

Analytical solutions of cylindrical and spherical dust ion-acoustic solitary waves

open access: yesResults in Physics, 2019
In the present work, employing the conventional reductive perturbation method to the field equations of an unmagnetized dusty plasma consisting of inertial ions, Boltzmann electrons and stationary dust particles in the nonplanar geometry we derived ...
Essam. R. El-Zahar, Hilmi Demiray
doaj   +1 more source

An approximate analytical solution for dynamic heat transfer of building walls

open access: yesCase Studies in Thermal Engineering, 2023
The present work deals with an approximate analytical solution for the dynamic temperature field due to the coupled effect of building walls to the adjacent environment.
C. Concilio, P. Di Luccia, G. Cuccurullo
doaj   +1 more source

An approximate analytical solution of Richards equation with finite boundary

open access: yesBoundary Value Problems, 2017
We apply a series expansion technique to estimate the water content distribution and front position in finite boundary conditions. We derive an approximate analytical solution of the Richards equation (RE) for the horizontal infiltration problem.
Xi Chen, Ying Dai
doaj   +1 more source

The Consecutive Substitution Method for Boundary Value Problems (BVPs) with Retarded Argument

open access: yesJournal of Applied Mathematics, 2023
In this study, we applied an approximate solution method for solving the boundary value problems (BVPs) with retarded argument. The method is the consecutive substitution method. The consecutive substitution method was applied and an approximate solution
Arzu Aykut, Ercan Çelik
doaj   +1 more source

Comparative analysis of new approximate analytical method and Mohand variational transform method for the solution of wave-like equations with variable coefficients

open access: yesResults in Physics, 2023
In a current article, two novel analytical approaches are compared for analytical analysis of wave like equations with variable coefficients, which describe the evolution of stochastic phenomena.
Hijaz Ahmad   +5 more
doaj   +1 more source

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