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公开(公告)号：KR1020050008367A
公开(公告)日：2005-01-21
申请号：KR1020030048435
申请日：2003-07-15
Applicant: 재단법인서울대학교산학협력재단
IPC: G01M9/00
Abstract: PURPOSE: An injection and intake distribution system and an injection and intake method thereof are provided to increase the stability of a structure and to reduce the fuel cost of a carrier by reducing a drag and a lift in the structure having a long shape or the carrier having the lower height than a width. CONSTITUTION: An injector(10) generates a relative injection of fluid in a certain section. An intake device(20) generates a relative intake of the fluid in the certain section. To prevent the vertical perturbation by the falling of rear pressure in the rear stream of the fluid, the injectors and the intake devices are alternatively arranged lengthwise on the surface of an object(10).
Abstract translation: 目的：提供一种注射和进气分配系统及其注射和吸入方法，以增加结构的稳定性，并通过减小具有长形状或载体的结构中的阻力和升力来降低载体的燃料成本 具有比宽度更低的高度。 构成：注射器（10）在某一部分产生流体的相对注入。 进气装置（20）在某一部分产生流体的相对摄入量。 为了防止流体后部流中的后压下降引起的垂直扰动，喷射器和进气装置交替地纵向设置在物体（10）的表面上。
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公开(公告)号：KR100803528B1
公开(公告)日：2008-02-14
申请号：KR1020070017963
申请日：2007-02-22
Applicant: 재단법인서울대학교산학협력재단
CPC classification number: A63B37/0007 , A63B37/0011
Abstract: A golf ball is provided to make air resistance identical to or smaller than that of a dimple golf ball by forming grooves in a net shape on the surface of a spherical surface thereof. Grooves(20) in a net shape are formed on the spherical body(10) of a golf ball. The area of the grooves is 14 to 69% of the surface area of the golf ball. The width of the groove is 1 to 5mm, and the depth of the groove is 0.1 to 0.5mm. Protrusions having a height that is smaller than the depth of the groove are formed on the groove. The grooves in a net shape are connected to each other or cut off from each other in the middle thereof. The protrusions are connected to each other or are cut off from each other.
Abstract translation: 通过在其球面的表面上形成网状凹槽，提供高尔夫球以使空气阻力等于或小于凹坑高尔夫球的空气阻力。 网状的槽（20）形成在高尔夫球的球体（10）上。 槽的面积为高尔夫球表面积的14〜69％。 槽的宽度为1〜5mm，槽的深度为0.1〜0.5mm。 在凹槽上形成具有小于凹槽深度的高度的突起。 网状凹槽在其中间彼此连接或切断。 突起彼此连接或彼此切断。
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公开(公告)号：KR100544797B1
公开(公告)日：2006-01-26
申请号：KR1020030048435
申请日：2003-07-15
Applicant: 재단법인서울대학교산학협력재단
IPC: G01M9/00
Abstract: 본 발명은 2차원적 형상(동일한 단면에 길이방향으로 긴 형상)의 뭉툭한 물체가 유체의 흐름에 의해 받게 되는 항력(유체 흐름에 대한 저항력) 및 양력(유체 흐름에 대한 수직방향의 힘) 감소를 위한 시스템에 대한 것으로서, 물체의 후류에서 발생하는 후면 압력의 강하로 인한 상하 섭동을 방지하도록 소정 구간 유체의 상대적 분사가 일어나는 분사장치; 및 소정 구간 유체의 상대적 흡입이 일어나는 흡입장치;가 상기 물체의 표면에 길이방향으로 교대로 번갈아가며 나란히 배치되어 이루어지는 것을 특징으로 하기 때문에 길쭉한 형상을 가진 구조물이나 운송체에서 발생하는 항력 및 양력을 크게 감소시켜서 구조물의 안정성을 증대시키고, 운송체의 연료비 절감을 가능하게 하는 길쭉한 물체 주변의 유체흐름에 대한 이해를 바탕으로 비교적 작은 에너지입력으로도 항력 및 양력을 크게 감소시킴으로써 에너지 효율을 높게 하는 효과를 갖는다.
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公开(公告)号：KR1020050008368A
公开(公告)日：2005-01-21
申请号：KR1020030048436
申请日：2003-07-15
Applicant: 재단법인서울대학교산학협력재단
IPC: F15D1/10
CPC classification number: B62D35/007 , B60J1/20 , B62D35/001 , Y10S180/903
Abstract: PURPOSE: A wake agitator and a wake agitation method are provided to reduce the fuel cost of a carrier by reducing the drag generated from the carrier whose a rear side is stumpy and to maximize energy efficiency by greatly decreasing the drag without an extra input of the energy. CONSTITUTION: A disturbance apparatus(10) is protruded from a rear corner of an object(1). Many disturbance apparatuses are arranged in a wake agitator to recover the rear pressure by reducing the intensity of a wake to be generated from the rear side of the object. Thereby, the fuel cost of a carrier is reduced. Moreover, the energy efficiency is maximized by reducing the wake without an additional energy input.
Abstract translation: 目的：提供尾流搅拌器和尾流搅拌方法，通过减少从背面被破坏的载体产生的阻力，通过大大降低阻力来最大限度地提高能量效率，从而降低载体的燃料成本，而不需要额外的输入 能源。 构成：干扰装置（10）从物体（1）的后角突出。 许多干扰装置设置在尾流搅拌器中，以通过减小从物体的后侧产生的尾流的强度来恢复后部压力。 因此，载体的燃料成本降低。 此外，通过减少尾流而不增加能量输入，能量效率最大化。
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