[InertGas]

Hello all,


I'm currently simulating a 2D approximation of a rotating cylinder with water and air inside of the domain. The fluid interface is tracked using the Eulerian method. At sufficiently high speeds and after enough time has passed, flow develops into stable rimming flow, where centrifugal forces overcome gravitational forces, as depicted in the attached Figure 1. In the figure, t is the thickness of the rimming layer and ω is the angular velocity of the wall.



The current goal of the simulations is the enhancement of heat transfer through the wall via various means. One way to enhance the heat transfer to the wall is by controlling the thickness (and existence) of the condensate layer. Thus, it has become pertinent to determine the condensate thickness around the circumference of the domain. Hand calculations indicate there will be some fluctuation depending on the angular velocity, an approximation of which is depicted in Figure 2.


The first attempt was to plot lines across the domain and export density data every 0.001 s, since it is reasonable that for most pairs of temperature and pressure air and liquid-water will have sufficiently different densities. Figure 3 is a reference of what this attempt looked like.


I was hoping to end up with data that compared density to distance for each time step that was recorded. It became apparent that this was impossible (at least as far as I know and have read).



My question is: How can I automate the process of exporting the density of each cell along a line in Fluent? Or, provided that is impossible, what method would you recommend to try and achieve this goal?


Thanks for your time, and let me know if you need any more details.