[oozcan]

Thank you both

I am going to try what you told as soon as possible.

I am going to let you know

[Antanas]

Originally Posted by Stanley90

Why do you think so?

Sent from my GT-I9505 using CFD Online Forum mobile app

Because of the angles between bodies the algorithm cannot continue with the inflation layer from one body to into another there. Stair stepping will occur at the intersection.

[oozcan]

Originally Posted by Antanas

Are there prism layers near walls? Yes, there are. So what's the problem?

The inflation mesh is generally made in wall-bounded models. Attached screenshot tells us that one of them is wall the other wall is fluid flow domain or the opposite way round. As I said before, the correct meshing like this models (single fluid domain having two bodies.) should be in first screenshot (layer compression)

Velocity magnitude in that nozzle must be maximum,especially in nozzle center.
Kind Regards,

[Stanley90]

Ok, maybe you have right because I didn't meet this in my study.

Sent from my GT-I9505 using CFD Online Forum mobile app

[Antanas]

Originally Posted by oozcan

Attached screenshot tells us that one of them is wall the other wall is fluid flow domain or the opposite way round. As I said before, the correct meshing like this models (single fluid domain having two bodies.) should be in first screenshot (layer compression)

Really? So you wanna say that mesh on the image below is wrong? Because based on your words there're walls everywhere.

[oozcan]

Thank you mate

[oozcan]

Originally Posted by Antanas

Really? So you wanna say that mesh on the image below is wrong? Because based on your words there're walls everywhere.

Do you have any suggestion in ''view advanced options'' to avoid stairstep ?

like max. angle, fillet ratio, fix first layer, gap factor ?

Kind Regards,

[Antanas]

Originally Posted by oozcan

Do you have any suggestion in ''view advanced options'' to avoid stairstep ?

like max. angle, fillet ratio, fix first layer, gap factor ?

Kind Regards,

They won't help in your case. Watch video that I gave you again, pay attention to text notes. It is very useful.

[oozcan]

Originally Posted by Antanas

They won't help in your case. Watch video that I gave you again, pay attention to text notes. It is very useful.

Thank you in advance,

I have watched it, it tells that max. angle should be increased to avoid stair-step in inflation. I have already done so, and defined it 175 degree, but ,it doesnt work . That is why, I have asked it

[Antanas]

Originally Posted by oozcan

Thank you in advance,

I have watched it, it tells that max. angle should be increased to avoid stair-step in inflation. I have already done so, and defined it 175 degree, but ,it doesnt work . That is why, I have asked it

There're 3 different situations (3 locations) there and 3 different workarounds. Read notes carefully again.

[oozcan]

ok thank you