A Numerical Analysis on the Effect of Turbulent Schmidt Number on Numerical Prediction of Pollutant Dispersion within Street Canyons

Bouabdellah ABED; Abdelouahab BENZERDJEB; Mohamed-kamel HAMIDOU

Makale detayları

A Numerical Analysis on the Effect of Turbulent Schmidt Number on Numerical Prediction of Pollutant Dispersion within Street Canyons

Yazarlar:

Bouabdellah ABED | Abdelouahab BENZERDJEB | Mohamed-kamel HAMIDOU

Ana Başlıklar:

Uygulamalı fizik

Dergi:

The Eurasia Proceedings of Science Technology Engineering and Mathematics 2018 Issue 4, pp.230-240

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000660953

Özet:

 


This
paper presents a numerical analysis on the effect of turbulent Schmidt number
on numerical prediction of pollutant dispersion within street canyons. Four
cases of idealised-2D street canyons were simulated with several modifications
to buildings geometry. The k – ε and RNG k – ε  turbulence closure models have
been adopted for turbulence modeling and the accuracy of numerical predictions
has been examined by comparing calculated results with the available
wind-tunnel measurements. The simulation results showed that the turbulent
Schmidt number is a range of 0.1 to 1.3 that has some effect on
the prediction of pollutant dispersion in the street canyons. For each street
canyon configuration, an optimum value for turbulent Schmidt number was
determined which gives good agreement with the experimental results. In the
case of a flat roof canyon configuration (case-00), appropriate turbulent
Schmidt number of 0.6 is estimated using the k – ε model and of 0.5 using the RNG k – ε .

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Makale detayları

A Numerical Analysis on the Effect of Turbulent Schmidt Number on Numerical Prediction of Pollutant Dispersion within Street Canyons

Yazarlar: Bouabdellah ABED | Abdelouahab BENZERDJEB | Mohamed-kamel HAMIDOU

Ana Başlıklar: Uygulamalı fizik

Dergi: The Eurasia Proceedings of Science Technology Engineering and Mathematics 2018 Issue 4, pp.230-240

Belge Tipi: Makale

Yayın Tarihi: 12/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000660953

Sayı

Yazarlar:

Bouabdellah ABED | Abdelouahab BENZERDJEB | Mohamed-kamel HAMIDOU

Ana Başlıklar:

Uygulamalı fizik

Dergi:

The Eurasia Proceedings of Science Technology Engineering and Mathematics 2018 Issue 4, pp.230-240

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000660953