Dual reciprocity boundary element method for convective-diffusive solid-liquid phase change problems, Part 2. Numerical examples

1998 ◽  
Vol 21 (1) ◽  
pp. 65-79 ◽  
Author(s):  
B. Šarler ◽  
G. Kuhnb
Keyword(s):  
Liquid Phase ◽  
Boundary Element Method ◽  
Phase Change ◽  
Boundary Element ◽  
Numerical Examples ◽  
Solid Liquid ◽  
Element Method

Clamped Plates on Pasternak-Type Elastic Foundation by the Boundary Element Method

1986 ◽  
Vol 53 (4) ◽  
pp. 909-917 ◽  
Author(s):  
J. T. Katsikadelis ◽  
L. F. Kallivokas
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Elastic Foundation ◽  
Analytical Solutions ◽  
Element Solution ◽  
Concentrated Loads ◽  
Numerical Examples ◽  
Line Loads ◽  
Element Method

A boundary element solution is developed for the analysis of thin elastic clamped plates of any shape resting on a Pasternak-type elastic foundation. The plate may have holes and it is subjected to concentrated loads, line loads, and distributed loads. The analysis is complete, i.e., deflections, stress resultants, subgrade reactions, and reactions on the boundary are evaluated. Several numerical examples are worked out and the results are compared with those available from analytical solutions. The efficiency of the BEM is demonstrated and discussed.

Discharging of Nano-Enhanced PCM via Finite Element Method

2018 ◽  
pp. 234-267
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Energy Storage ◽  
Liquid Phase ◽  
Phase Change ◽  
Thermal Energy ◽  
Supply And Demand ◽  
Storage And Retrieval ◽  
Solid Liquid ◽  
Element Method

Latent heat thermal energy storage systems (LHTESS), which work based on energy storage and retrieval during solid-liquid phase change, is used to establish balance between energy supply and demand. LHTESS stores and retrieves thermal energy during solid-liquid phase change, while in SHTESS phase change doesn't occur during the energy storage and retrieval process. LHTESS has a lot of advantages in comparison to SHTESS. The most important one is storing a large amount of energy during phase change process, which makes the energy storage density in LHTESS much higher than SHTESS. Because of this property, LHTESS have a wide application in different cases, such as solar air dryer, HVAC systems, electronic chip cooling, and engine heat recovery. The main restriction for these systems is thermal conductivity weakness of common PCMs. In this chapter, the method of adding nanoparticles to pure PCM and making nano-enhanced phase change material (NEPCM) and using fin with suitable array are presented to accelerate solidification process. The numerical approach which is used in this chapter is standard Galerkin finite element method.

scholarly journals Simulation of 2D Elastic Bodies with Randomly Distributed Circular Inclusions Using the BEM

2007 ◽  
Vol 1 (2) ◽  
Author(s):  
Yao Zhenhan ◽  
Kong Fanzhong ◽  
Zheng Xiaoping
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Boundary Integral ◽  
The Finite Element Method ◽  
Numerical Examples ◽  
Elastic Bodies ◽  
Integral Equation Formulation ◽  
Elasticity Problems ◽  
The Given ◽  
Element Method

Based on the Rizzo’s direct boundary integral equation formulation for elasticity problems, elastic bodies with randomly distributed circular inclusions are simulated using the boundary element method. The given numerical examples show that the boundary element method is more accurate and more efficient than the finite element method for such type of problems. The presented approach can be successfully applied to estimate the equivalent elastic properties of many composite materials.

Sign in / Sign up

Export Citation Format

Share Document