STUDI EKSPERIMENTAL PERBANDINGAN ALIRAN MELINTASI DUA SILINDER SIRKULAR DAN SILINDER ELIPS TERSUSUN TANDEM DAN INTERAKSINYA TERHADAP DINDING DATAR
Abstract: The study was
conducted to obtain information about the characteristics of fluid flow that
touches the surface of the bluff body.
Bluff body in the form of circular and elliptical cylinders and brought near a wall. Phenomenon found is
used to predict the aerodynamic loads on the bluff body and leads to a drag
reduction efforts.Elliptic cylinder and circular cylinder are arranged in
tandem position with longitudinal distance (L/D = 1.5) and gap distance
variation (G/D) between cylinders and
flat wall are 0.067, 0.133, 0.2, 0.267. Fluid flow characteristics
investigated experimentally on open loop wind tunnel.
The experimental results are used to explain flow interaction phenomenoum
which is resulted coefficient pressure distribution (Cp) on the cylinder, on
the flat wall and velocity distribution on the upstream and downstream. The
placement of the elliptic cylinder at G/D = 0.267 exhibits the lowest drag. The
whole research was done on the Reynolds number 53574 based on circular cylinder
diameter.
Penulis: Helmizar Helmizar
Kode Jurnal: jptmesindd120346
