Riza, Yuniar (2008) Studi Eksperimental Tentang Pengaruh Dinding Terhadap Karakteristik Aliran Fluida Melintasi Silinder Teriris Tipe-D "Studi Kasus Untuk Jarak Silinder Terhadap Dinding Sebesar 1,867 <G/D< 2,267". Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Berbagai penelitian mengenai pengaruh dinding terhadap aliran melintasi silinder sudah banyak dikembangkan. Salah satu penelitian terhadap pengaruh dinding terhadap silinder adalah dengan meletakkan silinder sirkular dekat dengan dinding sehingga menimbulkan gaya lift pada silinder. Aplikasi terapan dari penelitian ini salah satunya adalah konfigurasi shell and tube pada heat exchanger dan sebagainya. Penelitian ini bertujuan untuk mengetahui karakteristik aliran dari fluida yang melintasi silinder teriris type D akibat pengaruh dinding. Penelitian ini dilakukan secara eksperimental dalam sebuah subsonic wind tunnel dengan Re= 5,3xl04 dan menggunakan silinder yang diiris pada bagian depannya (tipe D) dengan sudut iris (OJ 0 °, 53 °, 65 °. Dalam penelitian ini variasi yang dilakukan adalah rasio antara jarak silinder dengan dinding wind tunnel terhadap diameter silinder (GID) sebesar 1,867; 1,933; 2 ; 2,067; 2,133 ; 2,2; 2,267. Karakteristikaliran yang diteliti adalah distribusi koefisien tekanan (Cp) dengan memasang pressure tap melingkari penampang silinder, profil kecepatan di belakang silinder dan visualisasi menggunakan metode oil flow picture. Hasil penelitian yang dilakukan menunjukkan bahwa dengan semakin besar jarak gap antara dinding terhadap silinder maka pengaruh yang diakibatkan oleh dinding semakin kecil. Pada jarak gap yang sama didapatkan bahwa silinder dengan sudut irisan 53° terganggu secara minimal, dan kemudian berturut-turut 0° dan 65
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Various studies have been conducted on the effect of walls on flow across a cylinder. One study on the effect of walls on a cylinder involves placing a circular cylinder close to the wall, thereby creating a lift force on the cylinder. Applications of this research include shell-and-tube configurations in heat exchangers, among others. This study aims to determine the flow characteristics of fluid passing through a type D sliced cylinder due to the influence of walls. This research was conducted experimentally in a subsonic wind tunnel with Re = 5.3xl04 and using a cylinder sliced at the front (type D) with a slice angle (OJ 0 °, 53 °, 65 °. In this study, the variation carried out was the ratio between the distance of the cylinder and the wind tunnel wall to the cylinder diameter (GID) of 1.867; 1.933; 2; 2.067; 2.133; 2.2; 2.267. The flow characteristics studied were the distribution of the pressure coefficient (Cp) by installing a pressure tap around the cylinder cross-section, the velocity profile behind the cylinder and visualization using the oil flow picture method. The results of the research showed that with the greater the gap distance between the wall and the cylinder, the influence caused by the wall was smaller. At the same gap distance, it was found that the cylinder with a slice angle of 53 ° was minimally disturbed, and then successively 0 ° and 65
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 620.106 4 Riz s-1 2008 (weeding) |
| Uncontrolled Keywords: | silinder teriris tipe D, sudut iris (Bs ), jarak silinder dengan dinding wind tunnel terhadap diameter silinder f!D), koefisien tekanan (Cp), koefiSien drag(CD), koefisien lift (CJ, wake.; Cylinder D-type, ratio gap cylinder (GID), cutting angles, coef~eient of pressure (Cp), coeficient of drag (CD), coeficient of lift (CJ.), wake |
| 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: | 23 Oct 2025 06:18 |
| Last Modified: | 23 Oct 2025 06:18 |
| URI: | http://repository.its.ac.id/id/eprint/128669 |
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