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Institute Gosa

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Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test

Linić, Suzana; Ocokoljić, Goran J.; Ristić, Slavica S.; Lučanin, Vojkan J.; Kozić, Mirko S.; Rašuo, Boško; Jegdić, Bore

(Belgrade : VINČA Institute of Nuclear Sciences, 2018)

TY  - JOUR
AU  - Linić, Suzana
AU  - Ocokoljić, Goran J.
AU  - Ristić, Slavica S.
AU  - Lučanin, Vojkan J.
AU  - Kozić, Mirko S.
AU  - Rašuo, Boško
AU  - Jegdić, Bore
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2309
AB  - Methods of diagnosing aerodynamic characteristics are constantly developing in order to conduct the precise and energy efficient wind tunnel testing of transport vehicles in the prototype design early stages. This is of a special importance when facing the time/cost consumption problems of detection of the transition zone over the simplified design of the high-speed train. Herein the applied thermodynamics found a very significant role in the field of experimental aerodynamics. With the intention of detecting the boundary-layer transition zone the following measurements were applied: the infrared thermography, flow visualization, and drag force measurements. In addition, the CFD was applied to predict the flow behaviour and transition zone, solving PDE consisting of the Reynolds-averaged Navier-Stokes equations, energy equation, and the equation of state for an ideal gas employing density-based solver. The thermal imaging defined the transition zone by simple application, and fast recognition, while the transition bounds were defined in the analysis. The flow visualization confirmed thermography results and the method itself as favourable, especially in the most expensive early phases of redesigning for aerodynamically optimized and energy efficient solutions. The numerical method was confirmed by the experiments, resulting in acceptable differences in the definition of the transition zone. For a better understanding of the phenomenon, the overlapped implementation of the presented methods focused on forced convection showed as the best solution. Based on the experiences of this research, development of the additional equipment and adjustments will be introduced in the future experiments.
PB  - Belgrade : VINČA Institute of Nuclear Sciences
T2  - Thermal Science
T1  - Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test
VL  - 22
IS  - 2
SP  - 1137
EP  - 1148
DO  - 10.2298/TSCI170619302L
ER  - 
@article{
author = "Linić, Suzana and Ocokoljić, Goran J. and Ristić, Slavica S. and Lučanin, Vojkan J. and Kozić, Mirko S. and Rašuo, Boško and Jegdić, Bore",
year = "2018",
abstract = "Methods of diagnosing aerodynamic characteristics are constantly developing in order to conduct the precise and energy efficient wind tunnel testing of transport vehicles in the prototype design early stages. This is of a special importance when facing the time/cost consumption problems of detection of the transition zone over the simplified design of the high-speed train. Herein the applied thermodynamics found a very significant role in the field of experimental aerodynamics. With the intention of detecting the boundary-layer transition zone the following measurements were applied: the infrared thermography, flow visualization, and drag force measurements. In addition, the CFD was applied to predict the flow behaviour and transition zone, solving PDE consisting of the Reynolds-averaged Navier-Stokes equations, energy equation, and the equation of state for an ideal gas employing density-based solver. The thermal imaging defined the transition zone by simple application, and fast recognition, while the transition bounds were defined in the analysis. The flow visualization confirmed thermography results and the method itself as favourable, especially in the most expensive early phases of redesigning for aerodynamically optimized and energy efficient solutions. The numerical method was confirmed by the experiments, resulting in acceptable differences in the definition of the transition zone. For a better understanding of the phenomenon, the overlapped implementation of the presented methods focused on forced convection showed as the best solution. Based on the experiences of this research, development of the additional equipment and adjustments will be introduced in the future experiments.",
publisher = "Belgrade : VINČA Institute of Nuclear Sciences",
journal = "Thermal Science",
title = "Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test",
volume = "22",
number = "2",
pages = "1137-1148",
doi = "10.2298/TSCI170619302L"
}
Linić, S., Ocokoljić, G. J., Ristić, S. S., Lučanin, V. J., Kozić, M. S., Rašuo, B.,& Jegdić, B.. (2018). Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test. in Thermal Science
Belgrade : VINČA Institute of Nuclear Sciences., 22(2), 1137-1148.
https://doi.org/10.2298/TSCI170619302L
Linić S, Ocokoljić GJ, Ristić SS, Lučanin VJ, Kozić MS, Rašuo B, Jegdić B. Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test. in Thermal Science. 2018;22(2):1137-1148.
doi:10.2298/TSCI170619302L .
Linić, Suzana, Ocokoljić, Goran J., Ristić, Slavica S., Lučanin, Vojkan J., Kozić, Mirko S., Rašuo, Boško, Jegdić, Bore, "Boundary-layer transition detection by thermography and numerical method around bionic train model in wind tunnel test" in Thermal Science, 22, no. 2 (2018):1137-1148,
https://doi.org/10.2298/TSCI170619302L . .
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