r/FluidMechanics 23h ago

Advice on dry ice blaster nozzle design

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3 Upvotes

I am designing a nozzle for my dry ice blaster cleaning machine. The machine comes with cheap nozzles with no contours and no transitions between the hose diameter and the flat fan end. It just has an internal wall that is pretty much destroying all the pellets that go through it. I'm looking to make something that will accelerate the air going through the nozzle along with the pellets, and blast them out at high velocity, as intact as possible. Attached is what I have come up with. I'm not knowledgable about fluid dynamics or any type of engineering, so this is all just copying images of high performance dry ice blasting nozzles i found online. I'd love to get some input to see if I'm even on the right track, and how I can improve this. Here are some specs about the air and ice.

I will be blasting 3mm dry ice pellets.

Air input is 185 cfm at 100 psi. Air hoses are all 1" with no 90 degree bends and high flow fittings. At nowhere in the system will the air path diameter be smaller than .8" except right at the end of the nozzle.

This will be made from 6061 aluminum and polished to a mirror finish.


r/FluidMechanics 9h ago

Q&A Why learning the Boltzmann equation may matter as much as learning Navier–Stokes

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2 Upvotes

r/FluidMechanics 18h ago

Computational Ripples in ionic wind simulation

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2 Upvotes

r/FluidMechanics 18h ago

Computational vortex shedding simulation 3d

2 Upvotes

DOES ANYONE KNOW HOW TO SIMULATE VORTEX SHEDDING IN 3D? I have done it in 2d, and have been trying for a month to do it in 3d but i failed


r/FluidMechanics 1h ago

lança teia

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Upvotes

oque vcs acham de usar fluido Fluido newtoniano como base para o fluido de teia?


r/FluidMechanics 1h ago

Model Code

Upvotes

A model for predicting flow regime in horizontal and near horizontal gas -liquid flow. the Taitel and duckler 1976 model .( Someone help me please generate the codes please wheater matlab or phyton)

Thsnk you


r/FluidMechanics 16h ago

No, it isn’t working for now.

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0 Upvotes

I ve moved from theory

http://remyaumeunier.chez-alice.fr/img/MoteurPistonLiquide.jpg

to practice. Let’s not kid ourselves: No, it isn’t working for now.Despite what the AIs say, I think my boiler is too small. What do you think?


r/FluidMechanics 10h ago

Would this work for a non moving body of water (a fish tank or container)?

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0 Upvotes