Purwanto, Purwanto (2008) Studi Eksperimental Tentang Pengaruh Dinding Terhadap Karakteristik Aliran Fluida Melintasi Silinder Teriris Type 1 "Studi Kasus Untuk Jarak Slunder Terhadap Dinding 0,15 < G/D < 0,5". Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Berbagai penelitian mengenai pengaruh dinding terhadap aliran melintasi silinder sudah banyakdikembangkan. Salah satu penelitian tentang silinder adalah pengaruh dinding terhadap karakteristik aliran fluida melintasi silinder sirkular dan silinder teriris tipe 1 Aplikasi dari penelitian ini salah satunya adalah konfigurasi shell and tube pada heat exchanger dan sebagainya. Penelitian ini bertujuan untuk mengetahui karakteristik aliran dari jluida yang melintasi silinderteriris tipe I akibat pengaruh dinding. Penelitian ini dilalculcan secara elcsperimental dalam sebuah subsonic wind tunnel dengan Re= 5,3xUI dan menggunakan silinder yang diiris pada bagiandepannya (tipe /) dengan sudut iris (Oj 0 °, 53 °, 65 °. Dalam penelitian ini variasi yang dilalculcan adalah rasioantara jarak silinder dengan dinding wind tunnel terhadap diameter silinder (Gid) sebesar 0,15; 0,2; 0,3; 0,4 dan0,5. Karakteristik aliran 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 semakin besar rasio gap (G/d) baik pada silinder teriris tipe I sudut iris (OJ=53 o maupun (0J=6SO mempurryai harga koefisien drag (C0 ) cenderung konstan, sedangkan koeflSien lift (CI) pada silinder teriris tipe I (OJ=6SO semakin menurun dan silinder teriris tipe I sudut iris (OJ=53 °cenderung lconstan. Hal ini sesuai dengan profil kecepatan dibelakang silinder dan visualisasi dengan oil flow picture
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Various studies on the effect of walls on the flow across a cylinder have been widely developed. One of the studies on cylinders is the effect of walls on the characteristics of fluid flow across a circular cylinder and a type 1 sliced cylinder. One of the applications of this research is the shell and tube configuration in heat exchangers and so on. This study aims to determine the flow characteristics of fluids passing through a type I sliced cylinder due to the influence of walls. This research was carried out experimentally in a subsonic wind tunnel with Re = 5.3xUI and using a cylinder sliced at the front (type /) with an angle of slice (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 0.15; 0.2; 0.3; 0.4 and 0.5. 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 conducted showed that the greater the gap ratio (G/d) both in the type I sliced cylinder with an angle of slice (OJ = 53 o and (OJ = 6 °) resulted in the drag coefficient (C0) tending to be constant, while the lift coefficient (CI) in the type I sliced cylinder (OJ = 6 °) decreased and the type I sliced cylinder with an angle of slice (OJ=53°tends to be constant. This is in accordance with the velocity profile behind the cylinder and visualization with the oil flow picture
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 620.106 4 Pur s-1 2008 (weeding) |
| Uncontrolled Keywords: | silinder teriris tipe I, sudut iris (IJs ), jarak silillder dengan dbrdillg Wind tlliUiel terhadap diiulletu silillder (Gid), koejiskn tekmuur (Cp), koefiSiell drag(Co), koefiSiell lift (Cr), wake; cylinder sliced by type of I, sliced angle (OJ, cylinder distance with wall of Wind tunnel to cylinder dituneto (Gid), pressiD'e coefficient (Cp), coeJjicient of drag ( c,;, lift coeffiCient ( C,), wake |
| Subjects: | Q Science > QA Mathematics > QA911 Fluid dynamics. Hydrodynamics |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 09 Oct 2025 03:03 |
| Last Modified: | 09 Oct 2025 03:03 |
| URI: | http://repository.its.ac.id/id/eprint/128531 |
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