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The effect of surface quality on the aerodynamic drag force of automobiles

Field of Science:Artificial IntelligenceAutomotive Engineering
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39._Ergashev_D.P._-_AVT....pdf

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Scientific electronic journal "Digital Economy"

Scientific electronic journal "Digital Economy"

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ARTICLE ANNOTATION

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In this scientific study, the effect of surface quality on the aerodynamic drag force of an automobile was investigated experimentally using small-scale models. During the research, automobile models manufactured using 3D printing technology were processed to achieve a surface condition close to that of a real vehicle body. The surface quality was quantitatively evaluated using the parameters Ra (arithmetical mean roughness) and Rz (mean maximum profile height). According to the measurement results, the difference between the test model surface and the actual vehicle surface was +0.474 μm for Ra and +2.20 μm for Rz. These results indicate that the model surface is sufficiently close to real conditions, thereby increasing the reliability of the aerodynamic test results. The study findings demonstrate that improving surface smoothness has a significant effect on boundary layer characteristics and leads to a reduction in aerodynamic drag force.

AUTHORS

D.Ergashev

ANDIJON DAVLAT TEXNIKA INSTITUTI

Tags

# aerodynamic drag# surface quality# Ra# Rz# 3D-printed model# boundary layer# aerodynamic testing facility

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Article Identifiers

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https://eroi.uz/11.142/A026-257895

DOI:

Not Available

References

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