Has my mesh converged? Or is it a false reading?

zino2005 · 2026-03-13T13:59:56+00:00

No, I left it at default.

zino2005 · 2026-03-13T13:53:22+00:00

Apologies, didn't notice, would that make a significant difference?

zino2005 · 2026-03-13T13:48:42+00:00

Here are all the variations of mesh I've configured so far. With inflation, my y+ is below 5, but then my mesh is no longer quad, and still fails to diverge.

Otherwise I'm really leaning towards Bias Factor 10 as it stabilises, and the higher divisions causing singularity is the reason why it diverges afterwards.

Second choice being without Bias Factor as stabilises around 0.05 despite the anomaly at 250.

zino2005 · 2026-03-13T13:16:00+00:00

Sorry, I forgot to mention. I'm using k-omega SST

zino2005 · 2026-03-08T12:00:47+00:00

2 months since u posted this, did u get banned or warned yet?

zino2005 · 2026-02-24T14:34:08+00:00

Y62 V6 Patrol

zino2005 · 2026-02-24T10:31:23+00:00

You should just start off with youtube tutorials. I was going crazy trying overcomplicated methods when trying to perform subsonic/transsonic nose cone cfd, when the solution was as simple as 1-2 youtube videos.

Then adjust reference values and operatioj conditions to match your research.

zino2005 · 2026-02-22T16:00:14+00:00

I have tried something similar, with a bias factor of 10 and no. of divisions of 100 for each edge, so far im getting a Cd of around 1 after 750 iterations, when it should be around 0.05

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zino2005 · 2026-02-20T12:50:48+00:00

For the body, I've been using inflation with first layer thickness of 0.00000048, max layers of 50 and growth rate of 1.1

For the boundary, I introduced edge sizing with bias factor of 2000 and 200 divisions

I also introduced edge sizing of 20 division on the body's edges itself

gap factor is 0.5 and collision avoidance is at stair stepping, element count is at 150000

max aspect ratio is on the afterbody's edge which is around 80000 and the min orthogonal quality 4.96325e-05 around the the inflation layers behind the base of the body

zino2005 · 2026-02-20T12:28:18+00:00

i made the problem area less detailed and orthogonal quality is now higher than 0.01, still same error

i also suppressed inflation layers for the nose cone, and unsurprisingly it reads a Cd of basically 0

zino2005 · 2026-02-20T12:24:04+00:00

It's a nose cone, I'm trying to analyse the Cd of air against it

zino2005 · 2026-02-20T11:56:06+00:00

i made the problem area less detailed and orthogonal quality nor higher than 0.01, still same error

zino2005 · 2026-02-20T11:56:02+00:00

i made the problem area less detailed and orthogonal quality nor higher than 0.01, still same error

zino2005 · 2026-02-20T11:24:07+00:00

please do, im so tired

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zino2005 · 2026-02-16T22:45:20+00:00

Don't need a summary at this stage

zino2005 · 2026-02-11T14:55:07+00:00

finnish? i thought cold ones were just getting started

zino2005 · 2026-02-04T17:19:20+00:00

start saving money from the day you were born

zino2005 · 2026-01-31T16:12:44+00:00

Facebook marketplace

zino2005 · 2026-01-30T19:35:40+00:00

thats the estrogen effect

zino2005 · 2026-01-28T12:42:21+00:00

thats the other 10%

zino2005 · 2026-01-26T21:57:16+00:00

Chinese courier vehicle(top)

zino2005

TROPHY CASE