I need sixteen individual surface-textured pipe models prepared for direct use in Ansys Fluent. Each pipe must follow written dimensions that I will supply (no drawings), and the internal wall carries elliptical dimples arranged in series with varying heights. For every geometry, I require: • A clean, watertight .iges file of the pipe. • A Fluent-ready mesh whose first boundary-layer height is exactly 0.002 mm, overall aspect ratio stays below 20, and global element sizing is fine enough for accurate near-wall resolution. Please keep the workflow consistent across all sixteen cases so I can run comparative CFD studies without additional cleanup. I will check mesh statistics in Fluent; any cell group exceeding the aspect-ratio limit or breaking continuity will need revision. Send back a neatly organised package: one folder per geometry containing its .iges model, the corresponding .msh file, and a short text file listing key mesh metrics and the dimple height used.