Arianto, Ryan (2008) Studi Eksperimental Tentang Pengaruh Dinding Terhadap Karakteristik Aliran Fluida Melintasi Silinder Teriris Tipe-D "Studi Kasus Untuk Jarak Silinder Terhadap Dinding Sebesar 1,4 =<G/D =< 1,8”. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian terhadap profit silinder yang dialiri fluida pada bidang mekanika fluida telah banyak dilakukan dengan berbagai macam konfigurasi dan model susunan. Demikian juga penelitian mengenai pengaruh dinding terhadap boundary layer terus berkembang dan masih dilakukan. Penelitian ini bertujuan untuk mengetahui karekteristik aliran yang melintasi silinder teriris yang diletakkan dekat dinding. Salah satu aplikasi dari penelitian ini adalah susunan pipa-pipa pada heat exchanger dengan bermacam model penyusunan. Pada penelitian ini digunakan sebuah silinder sirkular dan dua buah silinder teriris (tipe D) berdiameter 60mm. Silinder tersebut diiris dengan sudut iris 0 sebesar 0°, 53° , 65°. Karakteristik aliran yang diteliti akibat variasi dari rasio antara jarak silinder dengan dinding wind tunnel terhadap diameter silinder (%) sebesar 1,4 ; 1,467 ; 1,533 ; 1,6 ; 1,667 ; 1, 773 ; 1,8. Penelitian ini dilakukan secara eksperimental dalam sebuah subsonic wind tunnel dengan Re= 5,3x104 . Karakteristik aliran yang diteliti adalah distribusi koejisien tekanan (Cp), koefisien drag(Cv). koefisien lift (C1, profil kecepatan di belakang silinder dan melakukan visualisasi menggunakan metode oil flow picture Dari penelitian yang dilakukan dengan rasio jarak gap (1,4=<G;D =< 1,8) menunjukkan bahwa semakin besar rasio jarak gap terhadap silinder ( G/D). maka gangguan yang ditimbulkan oleh dinding semakin berkurang. Dengan rasio gap yang sama, silinder sirkular (85=0°) memiliki ganguan yang paling kecil, diikuti silinder teriris tipe D (85=53°), kemudian silinder teriris tipe D (85=65°) yang ditunjukkan dari koefisien resultan
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Research on fluid-flowing cylinders in the field of fluid mechanics has been widely conducted with various configurations and arrangement models. Likewise, research on the effect of walls on boundary layers continues to develop and is still being conducted. This study aims to determine the characteristics of the flow across a sliced cylinder placed near the wall. One application of this research is the arrangement of pipes in a heat exchanger with various arrangement models. In this study, a circular cylinder and two sliced cylinders (type D) with a diameter of 60 mm were used. The cylinders were sliced with an angle of 0 of 0°, 53°, 65°. The flow characteristics studied due to variations in the ratio between the distance of the cylinder and the wind tunnel wall to the cylinder diameter (%) were 1.4; 1.467; 1.533; 1.6; 1.667; 1.773; 1.8. This research was conducted experimentally in a subsonic wind tunnel with Re = 5.3x104. The flow characteristics studied are the distribution of pressure coefficient (Cp), drag coefficient (Cv), lift coefficient (C1), velocity profile behind the cylinder and visualization using the oil flow picture method. From the research conducted with the gap distance ratio (1.4 = <G; D = < 1.8) shows that the greater the gap distance ratio to the cylinder (G / D), the disturbance caused by the wall is reduced. With the same gap ratio, the circular cylinder (85 = 0°) has the smallest disturbance, followed by the type D sliced cylinder (85 = 53°), then the type D sliced cylinder (85 = 65°) which is shown from the coefficient resultant
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 620.106 4 Ari s-1 2008 (weeding) |
| Uncontrolled Keywords: | Silinder teriris tipe D, rasio jarak gap dengan silinder (In), sudut iris (Os, koefisien tekanan (Cp), koefisien drag(Cn), koefisien lift (C1), wake; Type D sliced cylinder, gap-to-cylinder ratio (In), slice angle (Os), pressure coefficient (Cp), drag coefficient (Cn), lift coefficient (C1), 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: | 05 Nov 2025 08:56 |
| Last Modified: | 05 Nov 2025 08:56 |
| URI: | http://repository.its.ac.id/id/eprint/128749 |
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