Learning Forum

[Mahmut Cenk Sayıl]

Hello everyone. I am fairly new to Fluent and to this forum (this is my second day working with Fluent indeed); so if I have opened this thread in a wrong section of the forum or if it has been asked before, I am sorry. 

Within the scope of my master's degree thesis, I am supposed to set a reference model for validation purposes. My thesis is on brine discharges; marine outfalls are rarely investigated using Fluent as far as I have observed. In the reference model I am supposed to make, wastewater is discharged into the ambient water, making certain degrees with the horizontal; so it is an inclined jet. However I have not been able to make the wastewater flow into the ambient water making an angle with the horizontal. This might be a very easy thing to be overcome but as I have mentioned, I basically know nothing about Fluent.

Thanks in advance!

[Omkar Pawar]

Hi Mahmut,

Based on the current description it is difficult to gauge the exact cause of the issue.

However, I guesstimate the issue could either be due to improper selection of model, physical domain, boundary condition, or inappropriate initialization.

The example best suited to model your flow physics would be VOF Dam Breaking simulation. You would locate various video example to model the same for your reference.

In your case kindly check if you are modelling with the following

1.     VOF Method is used with species transport in case if the mixing of wastewater with ambient water is required.

2.     If the case is initialised appropriately i.e. if it has patching is done correctly, or the hydrostatic pressure is applied correctly.

3.     Check if there are any wall that are created in the domain which is not allowing the flow to pass.