On the problems of riblets as a drag reduction device | Zendy

Arumugam G. | Zendy; Pironneau O. | Zendy

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On the problems of riblets as a drag reduction device

Author(s) -

Arumugam G.,

Pironneau O.

Publication year - 1989

Publication title -

optimal control applications and methods

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.458

H-Index - 44

eISSN - 1099-1514

pISSN - 0143-2087

DOI - 10.1002/oca.4660100203

Subject(s) - drag , reduction (mathematics) , finite element method , digging , flow (mathematics) , computer science , mechanics , mathematics , mathematical optimization , engineering , structural engineering , physics , geometry , archaeology , history

Some recent experiments have shown that it is possible to reduce the drag of a body in a uniform flow by digging tiny ribs or ‘riblets’ on its skin. This paper deals with (i) the formulation of the problem into a distributed parameter optimum design problem and (ii) with its numerical solution by the finite element method and the techniques of optimal control. Some numerically optimal riblets are presented.

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