Difference between revisions of "Positioning of computational nodes"

From Medusa: Coordinate Free Mehless Method implementation
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Although the meshless methods do not require any topological relations between nodes and even randomly distributed nodes could be used, it is well-known that using regularly distributed nodes leads to more accurate and more stable results. So despite meshless seeming robustness regarding the nodal distribution, a certain effort has to be invested into the positioning of the nodes and following discussion, to some extent, deals with this problem.  
 
Although the meshless methods do not require any topological relations between nodes and even randomly distributed nodes could be used, it is well-known that using regularly distributed nodes leads to more accurate and more stable results. So despite meshless seeming robustness regarding the nodal distribution, a certain effort has to be invested into the positioning of the nodes and following discussion, to some extent, deals with this problem.  
 
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In a following discussion we want to form set of algorithms that can cover arbitrary domain in n dimensions with nodes that can be further used to solve systems of PDEs. We start with algorithms for filling the domain with nodes. Second set is denoted to improving the nodal distributions and a last set of algorithms deals with the refinement of the nodal distribution. The algorithms can, of course, be combined.  
We want to form set of algorithms that can cover our arbitrary domain in n dimensions. First set of algorithms deals with filling the domain with nodes. Second set is denoted to improving of the nodal distributions and a last set of algorithms deals with the refinement of the nodal distribution. The algorithms can be obviously combined.  
 
  
 
== Filling the domain with nodes ==
 
== Filling the domain with nodes ==

Revision as of 20:27, 15 January 2018

Although the meshless methods do not require any topological relations between nodes and even randomly distributed nodes could be used, it is well-known that using regularly distributed nodes leads to more accurate and more stable results. So despite meshless seeming robustness regarding the nodal distribution, a certain effort has to be invested into the positioning of the nodes and following discussion, to some extent, deals with this problem. In a following discussion we want to form set of algorithms that can cover arbitrary domain in n dimensions with nodes that can be further used to solve systems of PDEs. We start with algorithms for filling the domain with nodes. Second set is denoted to improving the nodal distributions and a last set of algorithms deals with the refinement of the nodal distribution. The algorithms can, of course, be combined.

Filling the domain with nodes

Relaxation of the nodal distribution

Refinement of the nodal distribution

More details on refinement of the nodal distribution