Khaled Mohamad Kamal Ibrahim Omar. Effect of free stream turbulence over riblet surfaces. [[Thesis] /] تأثير اضطراب المسار الحر للسريان المضطرب علي الاسطح المحزوزة طوليا. Khaled Mohamad Kamal Ibrahim Omar. - faculty of engineer,Zagazig university , 2002. - 214 p : ill ; 30 cm. includes summary in arabic and english. Thesis (Ph.D) -- Zagazig university, 2002. includes bibliogrphic referance (181-189). Subjects--Topical Terms: Riblet Surfaces . Dewey Class. No.: 621 National Library of Medicine Call No.: 621 / OE