Results 31 to 40 of about 6,260 (222)

Multigrid Method for Solving Inverse Problems for Heat Equation

Mathematics, 2022
In this paper, the inverse problems for the boundary value and initial value in a heat equation are posed and solved. It is well known that those problems are ill posed.
Hassan K. Ibrahim Al-Mahdawi, Mostafa Abotaleb, Hussein Alkattan, Al-Mahdawi Zena Tareq, Amr Badr, Ammar Kadi   +5 more
doaj   +1 more source

Improved Numerical-Analytical Thermal Modeling Method of the PCB With Considering Radiation Heat Transfer and Calculation of Components’ Temperature

IEEE Access, 2021
The previous work relating to the numerical-analytical coupling method for steady-state thermal analysis of the laminated PCB structure is first briefly reviewed.
Yabin Zhang
doaj   +1 more source

Multigrid method for nonlinear poroelasticity equations [PDF]

, 2016
In this study, a nonlinear multigrid method is applied for solving the system of incompressible poroelasticity equations considering nonlinear hydraulic conductivity.
Rodrigo, Carmen, Oosterlee, Kees, Luo, Peiyao, Gaspar, Francisco   +3 more
core   +2 more sources

A new wavelet multigrid method for the numerical solution of elliptic type differential equations

Alexandria Engineering Journal, 2018
In this paper, we present a new wavelet multigrid method for the numerical solution of elliptic type differential equations based on Daubechies (db4) high pass and low pass filter coefficients with modified intergrid operators. The proposed method is the
S.C. Shiralashetti, M.H. Kantli, A.B. Deshi   +2 more
doaj   +1 more source

Combination of Multigrid with Constraint Data for Inverse Problem of Nonlinear Diffusion Equation

Mathematics, 2023
This paper delves into a rapid and accurate numerical solution for the inverse problem of the nonlinear diffusion equation in the context of multiphase porous media flow.
Tao Liu, Di Ouyang, Lianjun Guo, Ruofeng Qiu, Yunfei Qi, Wu Xie, Qiang Ma, Chao Liu   +7 more
doaj   +1 more source

Influence of Structural and Environmental Parameters on Solar Air Collector Performance

Energy Science &Engineering, EarlyView.
Increasing air gap depth and mass flow rate significantly enhances the thermal performance of solar air collectors, with optimal performance achieved at an 8.5 cm air gap and 0.01318 kg/s mass flow rate. Air gap depth is identified as the dominant factor influencing system efficiency.
Quankun Zhu, István Farkas, János Buzas   +2 more
wiley   +1 more source

O método multigrid de correções aditivas para a solução numérica acoplada das equações de Navier-Stokes com malhas não-estruturadas [PDF]

, 2007
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.Este trabalho busca a criação de um solver robusto para a solução de problemas de escoamento e transferência de calor. Afim de
Keller, Susie Cristine
core  

A cell structure implementation of the multigrid method for the two-dimensional diffusion equation

AIP Advances
To solve the two-dimensional diffusion equation using the finite difference method, we propose a simple MATLAB implementation of the multigrid method. The diffusion equation plays a fundamental role in modeling many significant physical phenomena and is ...
Yongho Choi, Youngjin Hwang, Soobin Kwak, Seokjun Ham, Jyoti, Hyundong Kim, Junseok Kim   +6 more
doaj   +1 more source

Monolithic Framework to Simulate Fluid‐Structure Interaction Problems Using Geometric Volume‐of‐Fluid Method

International Journal for Numerical Methods in Fluids, EarlyView.
A three‐dimensional fluid‐structure interaction (FSI) framework is developed using the geometric volume‐of‐fluid (VOF) interface capturing method and applied to assess largescale turbulent FSI interactions. The monolithic FSI framework is extensively validated, and despite the discontinuities across the interface, the FSI framework delivers stable and ...
Soham Prajapati, Ali Fakhreddine, Krishnan Mahesh   +2 more
wiley   +1 more source

Application of the multigrid method to solve the convection-diffusion equation using an implicit scheme for the discontinuous Galerkin method

Известия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. The development of numerical methods for solving initial-boundary value problems for partial differential equations remains highly relevant today.
Ruslan V. Zhalnin, Michael S. Nefedov
doaj   +1 more source