Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [meshless-methods]

The tag has no usage guidance.

0
votes
1answer
34 views

What's a time centered Riemann problem?

I am trying to understand the meshless methods as described in https://arxiv.org/pdf/1409.7395.pdf. I'm having trouble understanding the following step: (Page 7, just after equation 17) Now, rather ...
-1
votes
1answer
417 views

Eulerian vs Lagrangian vs Mesh-based vs Meshfree/Meshless methods

Hailing from the scicomp community recently getting into computer-graphics, I have noticed that the scicomp communities talk about mesh-based methods like FDM, FVM, FEM, etc, vs meshfree or meshless ...
3
votes
1answer
61 views

Dirichlet term in error estimations

I am working on a method based on moving least square approximation where shape functions do not satisfy Kroneker Delta property. So Dirichlet boundary condition should be enforced. I usually used ...
1
vote
0answers
27 views

Size of the support

I am working on moving least square approximation. To well-define of this method, the following matrix of size $n \times m$ must be of rank $m$. For $m=3$ $${\bf A }=\begin{pmatrix} 1&x_1&y_1\\...
3
votes
1answer
535 views

Meshless Methods and the Kronecker Delta Property

In texts I often read that meshless methods, as opposed to the FEM, do not exhibit the Kronecker Delta Property [1]: $N_I(x_J)\neq\delta_{IJ} = \begin{cases}1 &\mbox{if } I=J \\0 &\mbox{...
1
vote
2answers
207 views

How to determine the support/influence domain for irregularly distributed nodes in the Element-Free Galekin Method?

EDIT (26-12-14):In the Belytschko's EFG code, the domain of influence for uniform distributed node can be calculated using the code below; my question is how to calculate xspac and yspac when the ...
6
votes
1answer
311 views

Could you give examples of serious usage of meshfree methods?

I would like to hear about scientific codes and commercial packages utilizing meshless methods like Element-Free Galerkin based on Moving Least Squares functions. By "serious" I mean they could be ...