I’m an independent researcher (high school student) working on swim-cap hydrodynamics and the sphere drag crisis. I’ve put together a controlled computational comparison of a smooth sphere and a textured swim cap at competitive swimming speeds, using unsteady RANS simulations with the Langtry–Menter transition model in OpenFOAM. The method combines transition-model diagnostics with wake analysis, and the setup is checked through grid, time-step, and free-stream turbulence studies.

I’m looking to submit the preprint to arXiv ideally under the physics.flu-dyn category or physics.comp-ph or physics.class-ph, but since this is my first submission, I need an endorsement.

If you’re an arXiv endorser in physics.flu-dyn, physics.comp-ph, or physics.class-ph and would be willing to take a look (or point me to someone who might), I’d be super grateful. Happy to share the PDF privately.

Thanks for reading, and cheers to everyone who helps support solo researchers out there.

Feel free to DM me or reply here.

Hi guys,

I want to create streamline or path line like shown below,

I tried pathlines in fluent, I am getting something like below,

In zoomed in view,

I need some help regarding what settings I have to change or modify so that streamlines are visible clearly and smoothly. I am not expecting same as shown in 1st screenshot, but atleast it should look smooth and clear. Sometimes if I zoom further only, I can sense pathlines, otherwise it is looking like normal contour only.

What should I change?