So, we have all totally two types of grids available. So, one is a structured mesh. So where the elements will be aligned proper properly. So you can see here, so how do elements has been divided and aligned. So, this is our, this is my blog where I used to teach a lot of things or so, I am going to provide this link in the description of this lecture. So you guys can access and you guys can can can read or whatever the materials available here.

So, if we concentrate here, so this is the 3d mesh, and this is 3d structure mesh. So if you see the advantage is the better convergence. So, the convergence in the Sensi. So, in ANSYS, particularly even if it is not properly solved, then also we'll get the results. So, we can able to identify whether it has been converged properly or not, then only we can ensure that our results are proper right. So, that is the convergence and next is higher a higher resolutions.

So, this is regarding the results and next one is reserved accuracy and so, different algorithms has been created for structure meshes and challenges is it will take more Time to create structured mesh, but we can save the same time while solving then unstructured mesh. So, let's move to unstructured mesh. So, here you can see the elements are not properly aligned and these elements types and different to these are triangular elements. So, you can see here this is not properly aligned right. So, with this we can here you can see advantages. So, it will take very less time, but it is mainly used for the complex shapes only.

And the only challenge here is the results will be not accurate as expected with the structure mesh. So, he if you see the main aim of all machine modeler is the problem should take less time and the results should be accurate. So, if you see any of these two methods, one is structured mess it will take more time to create, but accuracy will be high. If you see the unstructured grids, the time taken to create the unstructured route is very less, but the results accuracy also very less. So, what do we have to do the time should be less and the accuracy should be more, there is another method available that is hybrid grids where we can use a layers of mesh. So, here you can see near to the walls of the aeroplane.

So, the structure grids has been created with some layers so, I hope now you can Yeah, now you can see this. So, here you can see need to the surface of the airplane, the grids are properly aligned up to some height, then it has become unstructured grid. So, this is called hybrid meshing, where we can where we can use different kind of elements here if you see there are two types of elements, one is triangular element and next one is Hector had one element. So, the advantages see accuracy and time can be managed in the same time that cannot be accused either of the methods mentioned above, right. So, this is the structured unstructured and hybrid grids. So in the coming lecture, we'll see Regarding the type of elements available, and the purpose in the meantime and their advantages