RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Vol. 11 No. 1 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi

KAJIAN PENGARUH KONTROL ALIRAN TERHADAP KOEFISIEN HAMBAT MODEL KENDARAAN

Rahmad Hidayat Boli (Unknown)
Wawan Rauf (Universitas Gorontalo)
Moh Rifal (Unknown)
Rifaldo Pido (Unknown)



Article Info

Publish Date
26 Jun 2023

Abstract

The characteristics of the airflow that is formed around the vehicle body affects the value of the resistance acting on the vehicle. When it reaches the rear edge of the vehicle, the flow undergoes a process of separation. So modification of the vehicle body design that is able to reduce the separation is urgently needed. Flow engineering around the vehicle body can be obtained by modifying the shape which is considered more aerodynamic. Meanwhile, flow engineering can also be obtained through the application of an active control system in areas that are considered to have the potential to initiate flow eddies on the rear side of the vehicle and have a major influence on the formation of flow separation. This research aims to examine the impact of the application of flow control blowing technique on the resistance of the modeled vehicle. The geometric angle of the front wall is determined to be 35°. The research uses a numerical computational approach with a standard k-epsilon as a turbulence model. The upstream velocity applied is 13.9 m/s, while the blowing velocity is set at 0.5 m/s. The research results prove that the application of blowing flow control has succeeded in minimizing the formation of wake structures and has the effect of delaying separation and has succeeded in reducing the aerodynamic drag coefficient to 9.3187%.

Copyrights © 2023






Journal Info

Abbrev

radial

Publisher

Subject

Civil Engineering, Building, Construction & Architecture

Description

Published twice in the period (June and December) by Universitas Bina Taruna Gorontalo. RADIAL Journal is a scientific and sharing media publication that contains scientific studies, research results, criticisms and appreciation of scientific fields that discuss civil engineering, architecture, ...