thank you, very helpful vid on meshing, only recently stared using Ansys and was confused as to how to specify local meshes in certain places like a wake region
Hi and thanks for the tutorial. Just the question about the vertical lines on the back faces (behind the projectile). Why they are inclined and are not perpendicular to the symmetry line?
Hi, I really appreciate everything you post in your channel. You videos are very informative and I've learned a lot from them. I would like to ask if you can send me a tutorial or the required steps to draw the flowing grids: HOH , J
Hi sir, I have a unique problem I simulate a 2D axisymmetric steam ejector the flow is a very high speed, 1300m/s at the outlet of converging-diverging nozzle the case is a Density-based problem, with water vapor(density: ideal gas) as a working fluid my mesh is coarse (2000element) the simulation goes well but when my mesh is fine (40000-60000 element) the floating due to excessive temperature occur actually, my orthogonal quality, skewness, and aspect ratio is very good I don't really know what the problem is
Sorry for the late reply. It depends on each geometry. In this geometry, on the semi-circle side, for example, I used 40 number of divisions so that the lines will spread out from the projectile towards the radius of the circle. Now for the bias factor, and for the long middle side, I chose to have a bias towards the projectile because I wanted the mesh elements to look like a rhombus and I wanted more elements near the projectile in order to study the flow accurately. Every step is explained for these. Again sorry for the late reply.
It depends on the solver method you are going to use, especially for the bias. Here, y+ value and wall function are the keywords you wanna look for. The divisions should be chosen in order to have a stable simulation with realistic results and high mass continuity. You'll have to do a mesh study to figure out those values.
thank you, very helpful vid on meshing, only recently stared using Ansys and was confused as to how to specify local meshes in certain places like a wake region
Hi and thanks for the tutorial. Just the question about the vertical lines on the back faces (behind the projectile). Why they are inclined and are not perpendicular to the symmetry line?
Great video, however, my model is a 3D solid plate.. how can I apply this to the entire body on not just the surface?
Hi, I really appreciate everything you post in your channel. You videos are very informative and I've learned a lot from them. I would like to ask if you can send me a tutorial or the required steps to draw the flowing grids: HOH , J
I need your help, i am in big trouble.
Hi sir, I have a unique problem
I simulate a 2D axisymmetric steam ejector
the flow is a very high speed, 1300m/s at the outlet of converging-diverging nozzle
the case is a Density-based problem, with water vapor(density: ideal gas) as a working fluid
my mesh is coarse (2000element) the simulation goes well
but when my mesh is fine (40000-60000 element) the floating due to excessive temperature occur
actually, my orthogonal quality, skewness, and aspect ratio is very good
I don't really know what the problem is
Ahmad wallah habibi good video.. better than any people from tutorial channels👌👌✌🏼
Thanks alot!
Hi ,
Can you tell me please how can we determine the suitable biais factor and number of divisions in meshing?
Thanks you
Sorry for the late reply. It depends on each geometry. In this geometry, on the semi-circle side, for example, I used 40 number of divisions so that the lines will spread out from the projectile towards the radius of the circle. Now for the bias factor, and for the long middle side, I chose to have a bias towards the projectile because I wanted the mesh elements to look like a rhombus and I wanted more elements near the projectile in order to study the flow accurately. Every step is explained for these. Again sorry for the late reply.
@@AhmadKouta
Good morning, thanks you very much
It depends on the solver method you are going to use, especially for the bias. Here, y+ value and wall function are the keywords you wanna look for.
The divisions should be chosen in order to have a stable simulation with realistic results and high mass continuity. You'll have to do a mesh study to figure out those values.
Which version of ANSYS are you using?
Academic version.
Very useful！
Glad to hear that!
I need someone to help me to apply structural Mesh
Anyone who knows the ANSYS fluent well helps me
Thanks❤
Awesome Video
Thank you!