- #1
meandcfd
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- TL;DR Summary
- Looking for insight on meshless FEA
Anybody have experience with it? Is it really meshless or just hiding a mesh generation?
Exploring Meshless Modeling Techniques
- Thread starter meandcfd
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- Modeling
In summary, meshless modeling is a computational technique that uses scattered points instead of a pre-defined mesh to simulate physical phenomena. It offers advantages such as increased accuracy, reduced computational cost, and the ability to handle complex geometries and large deformations. Common applications include fluid dynamics, structural analysis, and computer graphics. However, challenges include creating efficient algorithms and lack of standardization. Current research is focused on improving efficiency and accuracy, developing new techniques, and standardizing software and techniques for better comparison and reproducibility of results.
- #2
berkeman
Mentor
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Welcome to the PF. 
Interesting, I hadn't heard of that before...
https://en.wikipedia.org/wiki/Meshfree_methods
Interesting, I hadn't heard of that before...
https://en.wikipedia.org/wiki/Meshfree_methods
- #3
meandcfd
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thanks. yes I had seen all that in the Wikipedia. but I think there is talk about meshless that really is just a simplied mesh that you can't alter underneath. Ansys Discovery live says it's meshless but it is really? This one I don't now about:
https://enginsoftusa.com/meshless-FEA-SimSolid.html
Or this one
http://www.femcomp.se/midas-meshfree-comprehensive-design-tool.html
https://enginsoftusa.com/meshless-FEA-SimSolid.html
Or this one
http://www.femcomp.se/midas-meshfree-comprehensive-design-tool.html
1. What are meshless modeling techniques?
Meshless modeling techniques are numerical methods used to simulate physical phenomena without requiring a predefined mesh. Unlike traditional mesh-based methods, meshless techniques use a set of scattered points to represent the geometry and solve the governing equations.
2. What are the advantages of using meshless modeling techniques?
One major advantage of using meshless techniques is their ability to handle complex geometries and deformations without the need for mesh generation. This simplifies the modeling process and reduces computational costs. Additionally, meshless methods are more accurate than traditional methods in certain scenarios, such as problems with large deformations or cracks.
3. What are some common applications of meshless modeling techniques?
Meshless modeling techniques have been applied to a wide range of problems, including fluid dynamics, structural mechanics, heat transfer, and electromagnetics. They are particularly useful in problems involving complex geometries, moving boundaries, and large deformations.
4. What are some limitations of meshless modeling techniques?
One limitation of meshless techniques is their sensitivity to the distribution of scattered points. Poor point distribution can result in inaccurate solutions or even convergence issues. Additionally, some problems may require a large number of points, which can lead to longer computational times.
5. How do meshless modeling techniques compare to traditional mesh-based methods?
Meshless modeling techniques have several advantages over traditional mesh-based methods, such as the ability to handle complex geometries and deformations, higher accuracy in certain scenarios, and reduced computational costs. However, meshless methods may also have limitations, such as sensitivity to point distribution and longer computational times in some cases. The choice between the two methods depends on the specific problem at hand and the desired level of accuracy and efficiency.
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