Unsteady Bubble Velocity in VOF-DPM Simulation with UDF

 

It sounds like you're encountering an unphysical increase in velocity for your bubble as it reaches the surface in your VOF-DPM coupled simulation. Here are some potential causes and solutions to consider:👽👿

Addressing Gas Layer Absence in Eulerian Two-Fluid Bed Simulations

 Several factors can influence the presence or absence of a gas layer at the bottom of buried tubes in a Eulerian two-fluid fluidized bed simulation:

Molar Mass Impact in Multicomponent CFX Simulations (Without Reactions)

 In multicomponent flow simulations without reactions, the exact value of the molar mass for each component doesn't significantly affect the mass fraction results in ANSYS CFX. Here's why:

ANSYS Fluent: Plotting Pressure Change and Determining Pressure Drop in Pipes

 Here's how to address your questions about plotting pressure change and determining pressure drop in ANSYS Fluent:

Plotting Pressure Change:

 * Surface Reports: Utilize Surface Reports in ANSYS Fluent to obtain average pressure values at the inlet and outlet faces.

ANSYS SLM Simulation: Troubleshooting Iso-Surface Movement

Iso-surface movement during SLM simulation in ANSYS can be caused by several factors. Here are some potential causes and solutions to consider:

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 * Inaccurate Melt Pool Dynamics: The melting behavior of the powder might be misrepresented in your simulation. Calibrate your material properties, laser power settings, and melt pool viscosity to better reflect reality.

 * Meshing Issues: A coarse mesh might not capture the melt pool dynamics accurately. Refine your mesh, particularly around the laser-powder interaction zone, to improve precision.

Ansys Cfd Post: Troubleshooting Vorticity Contours

There are two possible reasons why you might not be able to see the vorticity contours in ANSYS CFD-Post:

Water Velocity Increase in Partially Filled Stirred Vessel Simulation (OpenFOAM)

 The unexpected velocity increase in your partially filled stirred vessel simulation could stem from a few factors:

Hey everyone,

I have a weird problem with my simulation of a stirred vessel partially filled with water. Above the air-water interface, the velocity of water (UWater) gradually increases over time and I can't figure out why. I think this increase over time causes my simulation to fail after simulating a few seconds

I mostly used the case from this link as a reference: https://www.cemf.ir/simulating-two-p...sing-openfoam/

I can't figure out what the problem is for the increase. Does anyone know what could be the cause for this or had similar issues in the past?