Learning Forum

[rickm98]

Hello experts,

because I can't make this simulation work I wanted to ask if it is even possible to simulate the doctor blading process in Ansys Fluent or by system coupling. In this process a doctor blade (orange) pushes the viscous Fluid (green) into a cavity. I think the deformation rate of the fluid is too high but maybe someone has an idea how to make it work.

Regards

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[Amine Ben Hadj Ali]

Insert your picture in your text. _What do you mean you cannot make simulation work?

[rickm98]

In my simulation the doctor blade moves but it just ignores the fluid and the fluid doesn't move with the doctor blade.
I have dynamic mesh on and have deforming for the fluid activated. Any idea why the fluid ignores the blade?

[Rob]

Assuming the pale blue block is the blade, where is the fluid region?

[rickm98]

In this process a blade (orange) pushes the viscous Fluid (green) into a cavity.The block should get deformed by the blade.

[Amine Ben Hadj Ali]

So Orange is a solid blade which needs to push the green fluid. How are you accounting for that in Fluent?

[rickm98]

That's what I'm not sure of. At the moment I think Ansys Fluent is the wrong software for this simulation but I thought maybe i am missing something

[Amine Ben Hadj Ali]

Do you want to model the fluid dynamics in the "green" fluid domain or just want to account for deformations of the green domain?

[rickm98]

I want to account for deformation of the green domain

[Rob]

What sort of fluid is the green block? Note, there are two green blocks so I am assuming it's the one next to the orange one.

[rickm98]

It has nearly the properties as honey and yes you are assuming right.

[Amine Ben Hadj Ali]

Should be doable with Fluent providing you have the right material viscosity and taking care about the numerics of transfer of displacements and forces :)

[Tanmay Chitnis]

Hi, can you please explain this in detial, how is this possible to model in Fluent?

TIA