KARAYOLU TÜNELLERİNDE KAVİS YARIÇAPININ TAŞITLARDAN YAYILAN KARBONMONOKSİT DAĞILIMLARI ÜZERİNDEKİ ETKİSİNİN SAYISAL İNCELENMESİ

Kerim Sönmez; Yücel Özmen

doi:10.17780/ksujes.1794216

TR EN

KARAYOLU TÜNELLERİNDE KAVİS YARIÇAPININ TAŞITLARDAN YAYILAN KARBONMONOKSİT DAĞILIMLARI ÜZERİNDEKİ ETKİSİNİN SAYISAL İNCELENMESİ

Öz

Bu çalışmada, içerisinde taşıt bulunan 500 m uzunluğundaki iki şeritli düz bir tünel ve R=950 m ve R=1900 m yarıçap değerlerine sahip iki çemberin 500 m uzunluğundaki yay parçalarıyla oluşan iki farklı kavise sahip iki şeritli iki tünel içerisindeki üç boyutlu akış alanları zaman bağımlı olarak Standart k-ε türbülans modeli ile çözülmüştür. Taşıt hızının 70 km/saat değeri için (taşıt sayısının 26 değeri için) gerçekleştirilen sayısal çözümlerle, tünel içerisindeki hız dağılımları ve karbonmonoksit dağılımları elde edilmiştir. Taşıtlı kavisli tünellerde, dış bükey ve iç bükey bölgelerde hız değerlerindeki fark kavis yarıçapı arttıkça artmaktadır. Artan kavis yarıçapı ile birlikte karbonmonoksit değerleri azalmaktadır. Tünellerin iç bükey tarafında karbonmonoksit yoğunluğu daha fazla olmaktadır. Sayısal çalışmada kullanılan Standart k-ε modeli ile elde edilen sonuçlar deneysel verilerle iyi bir uyum göstermektedir.

Anahtar Kelimeler

NUMERICAL INVESTIGATION OF THE EFFECT OF CURVE RADIUS IN ROAD TUNNELS ON THE DISTRIBUTION OF CARBON MONOXIDE EMITTED BY VEHICLES

Abstract

In this study, the three-dimensional flow fields within two-lane tunnels, one consisting of a 500 m long straight tunnel containing vehicle and two different curves formed by 500 m long arc segments of two circles with radii R=950 m and R=1900 m, were solved time-dependently using the Standard k -ε turbulence model. Numerical solutions were performed for a vehicle speed of 70 km/h (19.4 m/s) (for a vehicle count of 26), yielding the velocity distributions and carbon monoxide distributions within the tunnel. In curved tunnels with vehicles, the difference in speed values between the convex and concave regions increases as the curve radius increases. Carbon monoxide values decrease as the curve radius increases. Carbon monoxide effect is concentrated on the concave side of the tunnels. The results obtained using the Standard k-ε model in the numerical study show good agreement with the experimental data.

Keywords

References

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Details

Primary Language

Turkish

Subjects

Mechanical Engineering (Other)

Journal Section

Research Article

Authors

Kerim Sönmez ^*
0000-0002-5110-3849
Türkiye

Yücel Özmen
0000-0003-1127-1060
Türkiye

Publication Date

March 3, 2026

Submission Date

October 3, 2025

Acceptance Date

November 27, 2025

Published in Issue

Year 2026 Volume: 29 Number: 1

DOI

https://doi.org/10.17780/ksujes.1794216

IZ

https://izlik.org/JA85ME72SC

Cite

RIS / Bibtex

APA

Sönmez, K., & Özmen, Y. (2026). KARAYOLU TÜNELLERİNDE KAVİS YARIÇAPININ TAŞITLARDAN YAYILAN KARBONMONOKSİT DAĞILIMLARI ÜZERİNDEKİ ETKİSİNİN SAYISAL İNCELENMESİ. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 29(1), 198-217. https://doi.org/10.17780/ksujes.1794216