Nugroho, Rifki Adi (2007) Studi Eksperimental Tentang Karakteristik Aliran Fluida Melintasi Silinder Sirkular Yang Diganggu Oleh Silinder Teriris Tipe - I Studi Kasus Untuk Pengaruh Jarak Antara Kedua Silinder (S/D=1.5 S/D 2,25). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Silinder sebagai bentuk umum dari rancang bangun yang pada saat ini banyak digunakan. Silinder tersebut dapat menghasilkan gaya drag bila dilintasi oleh aliran fluida yang tegak lurus dengan arah aliran. Penelitian terdahulu menunjukkan bahwa pemasangan silinder pengganggu didepannya dapar mengurangi gaya drag pada silinder utama. Hal ini menunjukkan bahwa karakteristik aliran di sekitar permukaan .Silinder sangat mempengaruhi gaya tersebut, oleh karena itu perlu diketahui didistribusikan tekanan pada permukaan, dan profit aliran dibelakang silinder utama. Pada penelitian ini, topik yang akan dikaji adalah aliran melintasi sebuah dilakukan dengan memvariasikan perbandingan jarak antara kedua silinder (SD) bervarasi antara 1,5 s/d 2.25,dimana penampang irisan (o) silinder pengganggu yang bervariasi sebesar o, 53' ,dan 65° dilatakkan tegak lurus terhadap free stream. Penelitian ini dilakukan secm·a ekperimental dengan memasang silinder sirkular berdiameter D- 114 mm dan silinder pengganggu tipe-1 yang berdiameler d=48 mm pada lerowongan angin (windtunnel) dengan bilangan Reynolds sebesar 53.000 (berdasarkan diameter silinder utamanya). Distribusi tekanan diperoleh dari sejumlah pressure taps yang dipasang pada silinder utama dan silinder pengganggu
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Cylinders as a common form of design that is currently widely used. The cylinder can produce drag force when crossed by a fluid flow perpendicular to the flow direction. Previous research shows that installing a disturbing cylinder in front of it can reduce the drag force on the main cylinder. This shows that the flow characteristics around the surface. The cylinder greatly affects the force, therefore it is necessary to know the pressure distribution on the surface, and the flow profit behind the main cylinder. In this study, the topic to be studied is the flow across a carried out by varying the distance ratio between the two cylinders (SD) varying between 1.5 to 2.25, where the cross-section of the disturbing cylinder (o) which varies by o, 53', and 65° is placed perpendicular to the free stream. This research was conducted experimentally by installing a circular cylinder with a diameter of D-114 mm and a type-1 disturbance cylinder with a diameter of d = 48 mm in a wind tunnel with a Reynolds number of 53,000 (based on the diameter of the main cylinder). The pressure distribution was obtained from a number of pressure taps installed on the main cylinder and the disturbance cylinder
| Item Type: | Thesis (Other) |
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| Additional Information: | RSM 620.106 4 Nug s-1 2007 (Weeding) |
| Uncontrolled Keywords: | silinder utama, silinder penggangu, gaya drag, sudut iris, pitch ratio; main cylinder,I-type cylinder, dragforce, S/D |
| Subjects: | Q Science > QC Physics > QC151 Fluid dynamics |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 14 Nov 2025 03:54 |
| Last Modified: | 14 Nov 2025 03:54 |
| URI: | http://repository.its.ac.id/id/eprint/128789 |
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