airfoil spliting

- April 2, 2019 at 6:33 am
  
  veera
  Subscriber
  
  hi
  
  now i am recently working on 3d swept back wing in that , during mesh generation , i am getting trailing edge skew , so anybody help me to get good quality mesh with inflation over the wing
- April 2, 2019 at 7:37 am
  
  Keyur Kanade
  Ansys Employee
  
  can you please insert zoomed in image of the area where you are getting skew elements.
  
  check orthogonal quality. min ortho quality should be more than 0.1
- April 3, 2019 at 3:55 am
  
  veera
  Subscriber
  
  thank you for your response , at the trailing edge only i am getting skewness , but other quality parameters are good
- April 3, 2019 at 5:17 am
  
  Keyur Kanade
  Ansys Employee
  
  still image is not clear.
  
  these bad element may be coming due to angle at the trailing edge.
  
  you may need some geometry modification at the trailing edge like remove some material at trailing edge by cutting by a plane.
  
  what is min orthogonal quality in your mesh? if it is more than 0.1 then it is good.
- April 3, 2019 at 10:55 am
  
  veera
  Subscriber
  
  orthogonal quality is more than one only , but skewness only affecting the mesh ..maximum .0.95 , the number of elements failing is 140 ...among 5 lack element in the mesh , so as your suggestion , i have to cut the trailing edge with plane wright , but how can i modify that as they gave original size , if i am cutting the trailing edge , it will affect cl and cd value wright ?
  
  any other way to reduce the skewness?
- April 3, 2019 at 10:57 am
  
  veera
  Subscriber
- April 4, 2019 at 6:36 am
  
  Keyur Kanade
  Ansys Employee
  
  what is minimum orthogonal quality in your mesh?
  
  https://www.youtube.com/watch?v=AzvPxjNyr3w
- April 5, 2019 at 4:22 am
  
  veera
  Subscriber
  
  for me 0.14
- April 5, 2019 at 5:26 am
  
  veera
  Subscriber
  
  skewness 0.93
- April 8, 2019 at 6:25 am
  
  Keyur Kanade
  Ansys Employee
  
  if min orthogonal quality is more than 0.1 then no need to improve it further.
  
  you can move to solver.
- April 8, 2019 at 10:49 am
  
  veera
  Subscriber
  
  then what about skewness sir, see above problem skewness is 0.93 . i am studied about we need to keep the skewness less than 0.84
  
  and then if you are telling i can run the the problem with only orthogonal quality wright?
  
  if yes means up-to what limit i dont want to consider the skewness
- April 10, 2019 at 6:43 am
  
  Keyur Kanade
  Ansys Employee
  
  please do not consider skewness.
  
  consider only min orthogoanal quality and proceed.