Microriblets for drag reduction

Jin-Biao Huang; Chih-Ming Ho

doi:10.1117/12.210467

26 May 1995 Microriblets for drag reduction

Jin-Biao Huang, Chih-Ming Ho

Proceedings Volume 2448, Smart Structures and Materials 1995: Smart Electronics; (1995) https://doi.org/10.1117/12.210467
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

Micro riblets have been designed and fabricated by surface- micromachining technology with 3-layer polysilicon and 2-layer PSG. The riblets with rib-peak-widths of 3, 4, 6 micrometers and spacings of 100 micrometers and 300 micrometers have been chosen. Several more complicated surface patterns like fish scale replica, have also been designed. On the same chip, the micromachined hot film shear stress sensor with different geometries (6 X 100, 12 X 100, 18 X 100 micrometers ², etc.) are integrated downstream from the micro riblets. The sensors are made of polysilicon and used for the shear stress measurement of the fluid flowing over micro riblets.

Citation Download Citation

Jin-Biao Huang and Chih-Ming Ho "Microriblets for drag reduction", Proc. SPIE 2448, Smart Structures and Materials 1995: Smart Electronics, (26 May 1995); https://doi.org/10.1117/12.210467

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