[lde5047]

Hi,

I am performing a mesh refinement study on the volute of a pump.

While increasing elements my measure begins to converge, then jumps at around 9 million elements. All solutions have converged to 1E-06 RMS residuals.

I have attached a plot of the mesh refinement for reference.

Has anyone ever seen anything like this before? and if so what are some possible solutions or insight to what is going on here?

Here is some other info
ANSYS CFX
k-epsilon turbulence model
default tetrahedral mesh
10 inflation layers at walls .003 [in] smallest layer, w/ growth rate of 1.2

I have ran similar geometries with these settings and not had this problem in the past.

Thanks in advance.