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Search: Posts Made By: nvarma
Forum: FLUENT July 29, 2016, 09:01
Replies: 12
Views: 2,318
Posted By nvarma
It doesn't meet it WILL diverge. But it shows...

It doesn't meet it WILL diverge. But it shows that your solution is not numerically converging (within a time step). ie, it will be inaccurate.

What I would do in such a situation is
1. Change...
Forum: FLUENT July 28, 2016, 11:45
Replies: 12
Views: 2,318
Posted By nvarma
>similar residuals and the simulation doesn't...

>similar residuals and the simulation doesn't converge.

For transient/unsteady problems residuals will oscillate (going down during "iterations per time step", and jumping back up, at the next...
Forum: FLUENT July 27, 2016, 15:55
Replies: 12
Views: 2,318
Posted By nvarma
Okay, that makes sense. The only remaining input...

Okay, that makes sense. The only remaining input I would be worried about is porosity. Model seems to be okay to me.

So I think your species is not necessarily disappearing, may be the diffusion...
Forum: FLUENT July 26, 2016, 17:59
Replies: 12
Views: 2,318
Posted By nvarma
Since you said Hydrogen Chloride I assumed it is...

Since you said Hydrogen Chloride I assumed it is gas and was suggesting to consider natural convection. My bad.

Again I am speaking form intuition so correct me if I am wrong.

HCl liquid has a...
Forum: FLUENT July 26, 2016, 17:40
Replies: 12
Views: 2,318
Posted By nvarma
Is gravity enabled? Is the species 2 (HCl)...

Is gravity enabled? Is the species 2 (HCl) modeled as ideal gas or is bossinesq model turned on?

If the velocity in experiments are that low, then gravity will have a significant impact and has...
Forum: FLUENT July 26, 2016, 16:48
Replies: 12
Views: 2,318
Posted By nvarma
What is your outlet boundary condition? ...

What is your outlet boundary condition?

Also, did you try running it

1. with "pressure inlet" to see if the same problem persists?
2. Patching 0.5 for species mass fraction to see if the...
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