Flow Separation Characteristics of Tandem Minibus Model Configuration

Authors

  • Melkiyanto Department of Mechanical Engineering, Faculty of Engineering, Hasanuddin University, Gowa, Indonesia
  • Nasaruddin Salam Department of Mechanical Engineering, Faculty of Engineering, Hasanuddin University, Gowa, Indonesia
  • Rustan Tarakka Department of Mechanical Engineering, Faculty of Engineering, Hasanuddin University, Gowa, Indonesia

DOI:

https://doi.org/10.46604/aiti.2024.13942

Keywords:

pressure coefficient, flow separation, tandem minibus configuration, computational fluid dynamics (CFD), fluent software

Abstract

This study aims to determine the characteristics of the pressure coefficient and fluid flow separation in a tandem minibus model using the Fluent 6.3.26 computational method and experimental testing in a wind tunnel. Pressure measurements are taken by installing 14 pressure taps connected to a manometer on a 1:40-scale minibus model. Tests were conducted at five different distances between minibuses in a series configuration at seven-speed levels. The results showed that at the highest speed tested, minimal flow separation occurred at a distance ratio of L/D = 0.455, with values of CP = -0.083 in the first minibus and CP = -0.250 in the second minibus. This configuration is identified as the optimal spacing to reduce aerodynamic disturbance in the tandem minibus system.

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Published

2025-04-15

How to Cite

[1]
Melkiyanto, Nasaruddin Salam, and Rustan Tarakka, “Flow Separation Characteristics of Tandem Minibus Model Configuration”, Adv. technol. innov., Apr. 2025.

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