Larry, there's dozens of ways to add turbulence to a shape to delay flow separation. They all have odd names but the whole point is to convert laminar flow to a thin controlled turbulent boundry flow before the air can separate from the surface and cause larger and more draggy "bubbles" of turbulence. It's not uncommon to find such turbulators on wings and a large part of Micheal Selig's wind tunnel work on airfoils involved turbulators being added at various points and the airfoils retested to see if some of the low speed troubles could be corrected. There's even cases of turbulators, invigorators or some other assorted gizmos being used on fuselages and air intakes and I even saw pictures of what looked like invigorators on a wing mounted mission pod of some sort.