KaydedilenlerDerginizi ekleyin

Dergiler / Gazi University Journal of Science / 2009 / Cilt: 22 - Sayı: 2

Modeling Air Entrainment Rate and Aeration Efficiency of Weirs Using ANN Approach

Ahmet BAYLAR
Ozgur KISI
M. Emin EMIROGLU
Sayfa
107–116
Yayın Tarihi
2010-03-22
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Key Words: Air entrainment rate, Aeration efficienc,; Dissolved oxygen; Weir, Neural networks.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:The concentration of dissolved oxygen is an important indicator of water quality because aquatic life lives on the dissolved oxygen in the water.
📊
Temel Bulgular & Veri:This paper investigates the free overfall jets from triangular sharp−crested weirs and their effect on the air entrainment rate and the aeration efficiency.
💡
Sonuç & Katkı:Key Words: Air entrainment rate, Aeration efficienc,; Dissolved oxygen; Weir, Neural networks.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Air entrainment rate · Aeration efficienc · Dissolved oxygen

Abstract

The concentration of dissolved oxygen is an important indicator of water quality because aquatic life lives on the dissolved oxygen in the water. A free overfall jet from a weir plunging into downstream water causes entrainment of the air bubbles if the free overfall jet velocity exceeds a certain critical value and hence aeration occurs. This paper investigates the free overfall jets from triangular sharp−crested weirs and their effect on the air entrainment rate and the aeration efficiency. The artificial neural network models, multi nonlinear and linear regression equations were obtained for the triangular sharp−crested weirs relating the air entrainment rate and the aeration efficiency to drop height, discharge, and angle in triangular sharp−crested weir. There were good agreements between the measured values and the values obtained using the artificial neural network and multi nonlinear regression models. Key Words: Air entrainment rate, Aeration efficienc,; Dissolved oxygen; Weir, Neural networks.

🔖

Bu Makaleye Atıf Yap

BAYLAR, A., KISI, O., EMIROGLU, M. E. (2010). Modeling Air Entrainment Rate and Aeration Efficiency of Weirs Using ANN Approach. Gazi University Journal of Science, Cilt: 22 - Sayı: 2, 107–116. https://ajindex.com/articles/255149

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (16)

  1. Wilhelms, S.C., Gulliver, J.S., Parkhill, K., “Reaeration at Low-Head Hydraulic Structures”, Tech. Rep. Hl-91, US Army Engineer Waterways Experiment Station, Vicksburg, Miss, (1992).
  2. Chanson, H., “Predicting Downstream of Weirs”, Spillways and Waterways. Proc. Instn Civ. Engrs Wat., Marit. & Energy,, March, 20-30 (1995).
  3. Oxygen Content Ervine, D.A., “Air Entrainment in Hydraulic Structures: A Review”, Proc. Instn Civ. Engrs Wat., Marit. & Energy, 130, September, 142-153 (1998).
  4. Gulliver, J.S., Wilhelms, S.C., Parkhill, K.L., “Predictive Capabilities in Oxygen Transfer at Hydraulics Structures”, J. Hydr. Engrg., ASCE, (7): 664-671 (1998).
  5. Baylar, A., Bagatur, T., “Aeration Performance of Weirs”, Water SA, 26 (4): 521-526 (2000).
  6. Baylar, A., Bagatur, T., “Aeration Performance of Weirs”, Water Engineering & Management, Part, 148 (3): 33-36 (2001).
  7. Baylar, A., Bagatur, T., “Aeration Performance of Weirs”, Water Engineering & Management, Part, 148 (4): 14-16 (2001).
  8. Baylar, A., Bagatur, T., Tuna, A., “Aeration Performance of Triangular Notch Weirs at Recirculating System”, Water Quality Research Journal of Canada, 36 (1): 121-132. (2001).
  9. Baylar, A., Bagatur, T., Tuna, A., “Aeration Performance of Triangular-Notch Weirs”, Journal of the Chartered Institution of Water & Environmental Management, 15 (3): 203-206 (2001).
  10. Baylar, A., “Study on the Effect of Type Selection of Weir Aerators on Oxygen Transfer”, Ph.D. Thesis, Firat University, Elazig, Turkey, (In Turkish), (2002).
  11. Baylar, A., Emiroglu, M.E., “The Effect of Sharp- Crested Weir Shape on Air Entrainment”, Canadian Journal of Civil Engineering, 29 (3): 383 (2002).
  12. Baylar, A., Bagatur, T., “Experimental Studies on Air Entrainment and Oxygen Content Downstream of Sharp-Crested Weirs”, Water & Environment Journal, 20 (4): 210-216 (2006).
  13. Gameson, A.L.H., “Weirs and Aeration of Rivers”, Journal of the Institution of Water Engineers, 11 (5): 477-490 (1957).
  14. Ervine, D.A., McKeogh, E.J., Elsawy, E.M., “Effect of Turbulence Intensity on the Rate of Air Entrainment by Plunging Water Jets”, Proc. Instn Civ. Engrs., London, 69 (2): 425-445 (1980).
  15. Tsang, C.C., “Hydraulic and Aeration Performance of Labyrinth Weirs”, Ph.D. Thesis, University of London, London, (1987).
  16. Wormleaton, P.R., Tsang, Performance of Rectangular Planform Labyrinth Weirs”, J. Envir. Engrg., ASCE, 126 (5): 456-465 (2000). C.C., “Aeration Gameson, A.L.H., Vandyke, K.G., Ogden, C.G., “The Effect of Temperature on Aeration at Weirs”, Water & Wa