Pengaruh Perbedaan Ukuran Intake Kontraksi Terhadap Laju Aliran Di Ruang Uji

Wempi Geovano Iribaram; Vina N Van Harling

doi:10.30630/jtm.16.2.1132

Wempi Geovano Iribaram Politeknik Saint Paul Sorong
Vina N Van Harling Politeknik Saint Paul Sorong http://orcid.org/0000-0002-2533-0351

DOI: https://doi.org/10.30630/jtm.16.2.1132

Keywords: intake size, test chamber, wind tunnel

Abstract

The contraction cone or intake is a very important part of wind tunnel design because it has a high impact on the quality of airflow in the test section. The design of the contraction cone aims to create the air pressure required at the time of entry of the test section without experiencing much turbulence. This research was conducted using an experimental method, where in this study it was carried out by testing, making 3 intake components or funnels of different sizes. The calculation results obtained funnel 1 contraction with a value of 11,466 m³ / s, funnel 2 contraction with a value of 12,266 m³ / s, and funnel 3 contraction with a value of 12,533 m³ / s. These results show that the size of the contraction affects the wind flow rate inside the test chamber. Where changes in the size of contractions will increase the wind flow rate, which is caused by the increasing size of the contraction cross-sectional area so that the shelter area or wind flow area that will move towards the test room increases in size or area

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