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All Journal APPROACH: Jurnal Teknologi Penerbangan Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Sinung Tirtha
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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STUDI EKSPERIMENTAL PERANGKAT UJUNG SAYAP PADA PESAWAT 19 PENUMPANG Sinung Tirtha; Teuku M Ichwanul H; Ardanto Ardanto; Dana Herdiana; Agus Aribowo
Approach : Jurnal Teknologi Penerbangan Vol. 4 No. 1 (2020): April 2020
Publisher : Politeknik Penerbangan Surabaya

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Winglet devices are design to improve aerodynamic performance of the wing. Its design is intended to minimized drag that produced by wing tip vortices. Wingtip device itself has various type. Experimental study was carried out to observe effect of winglet implementation to the aerodynamic performance of the wing. Four type of wingtip devices was tested by means of wind tunnel testing to find out the optimum design that provide better impact on aerodynamic improvement. The result shows that design number 3 provide highest effect on increasing lift to drag ratio of the wing.
Visualisasi Mekanisme Flooding Aliran Counter-Current Air-Udara pada Simulator Hotleg Dengan L/D=50 Suprianta Setiawan Putra; Apip Badarudin; De endarlianto; Indar to; Sinung Tirtha; Venti Yoanita; Marcellinus Sindhu
Retii Prosiding Seminar Nasional ReTII ke-11 2016
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

In this study, the experiments used a hotleg simulator which consists of three parts: a horizontal pipe, bend and riser. Geometry sizes of pipes in a scale of 1/30 of the actual hotleg geometry size in the PWR, with ratio L/D = 50. Hotleg simulator has an inside diameter = 25.4 mm, the horizontal pipe length L = 1270 mm, and riser pipe length 20 mm with an angle of 50o. The visual data was collected by using a high speed camera to observe the mechanism of flooding that occurred in hotleg simulator. Flooding mechanism was identified by analyzing the phenomena that occur at the time of the flooding. From the observation of a high speed camera, it was found that the initiation of flooding coincided with the formation of liquid slug. At low superficial velocity of water, the onset of slugging occurs near a bend. While at higher superficial velocity of water, the onset of slugging occurs away from the bend.  Comparison of horizontal pipe length to the diameter of pipes (L/D) provide a significant effect on the flooding phenomenon.Keywords: pressurized water reactor, onset of flooding, onset of slugging, hydraulic jump, hotleg.
Co-Authors AA Sudharmawan, AA Apip Badarudin Ardanto Ardanto Dana Herdiana De endarlianto Indar to Marcellinus Sindhu Suprianta Setiawan Putra Teuku M Ichwanul H Venti Yoanita