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특허 상세정보

Surface for low drag in turbulent flow

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-021/10   
미국특허분류(USC) 244/130 ; 244/200
출원번호 US-0532864 (1990-06-04)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 50  인용 특허 : 0
초록

A nonsmooth surface of an object in a fluid flowstream permits a reduction of turbulent drag. The surface shape is designed to approximate a minimal surface and satisfies the equation (Vㆍ∇)∇FF

대표
청구항

A low drag element in the presence of a fluid where there is relative fluid flow between said element and said fluid, said element comprising: a nonsmooth surface, approximating a minimal surface, which satisfies the equation (Vㆍ∇)∇F0, where V is the relative velocity between the fluid and the surface, ∇F

이 특허를 인용한 특허 피인용횟수: 50

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