July 31, 2023 at 5:52 amShinSubscriber
I want to calculate the flame propagation from right to left in a simple geometry as shown in the figure.
However, when I cut a one-dimensional-like mesh in a two-dimensional region as shown in the figure, the calculation does not converge.
I think it is probably a problem of the aspect ratio of the mesh, but I would like to know what I should pay attention to in cutting such a mesh and what I should pay attention to in the calculation conditions.
I do not want to cut a fine mesh in the vertical direction if possible, since the information I need is only one-dimensional information in the left and right directions of the figure.
The calculation area is 1 mm in height and 15 mm in width.
Sorry for the rudimentary question.
July 31, 2023 at 9:30 amEssenceAnsys Employee
Flame propagation in Fluent cannot be modeled in one dimension.
August 31, 2023 at 1:11 amShinSubscriber
thank you for reply.
I'm sorry late reply.
I understand one-dimentional calcuration is cannot in fluent.
So if I want to do this calculation, I need to use a 2D region and cut a fine vertical mesh?
August 31, 2023 at 2:41 pmRobAnsys Employee
In theory you could make a mesh with a lower y size and have an aspect ratio of 1. Set upper & lower edges as symmetry and you have the domain you want. The problem will be getting the fuel & oxident to mix with a layer of combustion products potentially separating the two. So, in practice it may not work well.
September 5, 2023 at 5:04 am
September 11, 2023 at 11:32 amRobAnsys Employee
What happens when you try and run the model?
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