Mechanical & Materials Engineering, Department of


First Advisor

Professor Kamlakar Rajurkar

Date of this Version

Winter 12-1-2022


Maxwell, J.V. (2022). Parametric modeling of biomimetic sharkskin for wire EDM for drag reduction and hydrophobicity [Unpublished master's thesis]. University of Nebraska-Lincoln


A THESIS Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Master of Science, Major: Mechanical Engineering and Applied Mechanics, Under the Supervision of Professor Kamlakar Rajurkar. Lincoln, Nebraska: December 2022

Copyright © 2022 Joel V. Maxwell


This research sets out to demonstrate the viability of parametric modeling for biomimetic sharkskin in the effort to reduce drag and create a self-cleaning surface. Multiple designs were created to be machined by Wire EDM on stainless steel and titanium and were comparatively tested. Limitations of current manufacturing processes to economically produce naturally occurring structures such as sharkskin, emphasize the need to be able to calculate the most accurate design for a given manufacturing process. By designing a simplified but parametrically consistent model compared to an accurately depicted 3D model of sharkskin, the textured samples produced can be further tested for drag reduction and hydrophobicity (the tendency to repel water) based on five independent numerical values.

Advisor: Kamlakar Rajurkar