Experimental modeling of circular labyrinth weirs with different weir heights and configurations

Ali Yıldız; Ali İhsan Martı; Mustafa Göğüş

Makale detayları

Experimental modeling of circular labyrinth weirs with different weir heights and configurations

Yazarlar:

Ali Yıldız | Ali İhsan Martı | Mustafa Göğüş

Yayıncı:

Gumushane University

Ana Başlıklar:

Mühendislik

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.373-385

Belge Tipi:

Makale

Yayın Tarihi:

4/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001287771

pISSN:

2146-538X

Anahtar kelimeler:

Özet:

 Due to their zigzag geometry in plain view, labyrinth weirs require less crest length compared to linear weirs in the dam body or in the channels where they are placed. In this study, the effect of the number of cycles N and weir heights P of the semi-circular labyrinth weirs on the flow efficiency was investigated. Semi-circular labyrinth weirs, unlike triangular and trapezoidal labyrinth weirs, increase the discharge efficiency by making the areas that reduce the flow capacity at the intersection areas more efficient and by allowing the flow to move in a more perpendicular direction to the weir walls. The experiments were carried out on 3 different configurations N2, 3 and 4 depending on the number of semi-circles they contain. In all configurations, a total of 3 weir heights P0.20, 0.30 m and 0.40 m were used and 9 test setups were prepared. In addition, to reference the results obtained from circular weirs, experiments were carried out with linear weirs at 3 different weir heights P0.20, 0.30 m and 0.40 m, and a total of 12 experiments were carried out. n this study, the effect of the number of cycles N and weir heights P of the semicircular labyrinth weirs on the discharge efficiency was investigated. The results obtained from the circular labyrinth weir experiments were compared with previous studies and it was seen that the semi-circular labyrinth weirs had higher discharge capacity than the triangular labyrinth weirs. In addition, semi-circular labyrinth weirs provided a longer effective crest length than the triangular form with the same channel width, they provide higher flow rates at the same weir load.

 Due to their zigzag geometry in plain view, labyrinth weirs require less crest length compared to linear weirs in the dam body or in the channels where they are placed. In this study, the effect of the number of cycles N and weir heights P of the semi-circular labyrinth weirs on the flow efficiency was investigated. Semi-circular labyrinth weirs, unlike triangular and trapezoidal labyrinth weirs, increase the discharge efficiency by making the areas that reduce the flow capacity at the intersection areas more efficient and by allowing the flow to move in a more perpendicular direction to the weir walls. The experiments were carried out on 3 different configurations N2, 3 and 4 depending on the number of semi-circles they contain. In all configurations, a total of 3 weir heights P0.20, 0.30 m and 0.40 m were used and 9 test setups were prepared. In addition, to reference the results obtained from circular weirs, experiments were carried out with linear weirs at 3 different weir heights P0.20, 0.30 m and 0.40 m, and a total of 12 experiments were carried out. n this study, the effect of the number of cycles N and weir heights P of the semicircular labyrinth weirs on the discharge efficiency was investigated. The results obtained from the circular labyrinth weir experiments were compared with previous studies and it was seen that the semi-circular labyrinth weirs had higher discharge capacity than the triangular labyrinth weirs. In addition, semi-circular labyrinth weirs provided a longer effective crest length than the triangular form with the same channel width, they provide higher flow rates at the same weir load.

 Due to their zigzag geometry in plain view, labyrinth weirs require less crest length compared to linear weirs in the dam body or in the channels where they are placed. In this study, the effect of the number of cycles N and weir heights P of the semi-circular labyrinth weirs on the flow efficiency was investigated. Semi-circular labyrinth weirs, unlike triangular and trapezoidal labyrinth weirs, increase the discharge efficiency by making the areas that reduce the flow capacity at the intersection areas more efficient and by allowing the flow to move in a more perpendicular direction to the weir walls. The experiments were carried out on 3 different configurations N2, 3 and 4 depending on the number of semi-circles they contain. In all configurations, a total of 3 weir heights P0.20, 0.30 m and 0.40 m were used and 9 test setups were prepared. In addition, to reference the results obtained from circular weirs, experiments were carried out with linear weirs at 3 different weir heights P0.20, 0.30 m and 0.40 m, and a total of 12 experiments were carried out. n this study, the effect of the number of cycles N and weir heights P of the semicircular labyrinth weirs on the discharge efficiency was investigated. The results obtained from the circular labyrinth weir experiments were compared with previous studies and it was seen that the semi-circular labyrinth weirs had higher discharge capacity than the triangular labyrinth weirs. In addition, semi-circular labyrinth weirs provided a longer effective crest length than the triangular form with the same channel width, they provide higher flow rates at the same weir load.

 Labirent savaklar plan görünümünde zikzaklı geometrilerinden dolayı, doğrusal savaklara göre baraj gövdesinde veya yerleştirildiği kanallarda daha az genişliğe ihtiyaç duyarlar. Bu çalışmada yarım daire şeklindeki labirent savakların içerdikleri göz sayılarının N ve yüksekliklerinin P debi verimine olan etkisi incelenmiştir. Yarım daire şeklindeki labirent savaklar üçgen ve trapez labirent savakların aksine, kesişim köşelerindeki akış kapasitesini azaltan bölgeleri daha verimli hale getirerek ve akışın savak duvarlarına daha dik doğrultuda hareket etmesini sağlayarak deşarj verimini arttırırlar. Deneyler dairesel savaklar için içerdikleri yarım daire sayısına bağlı olarak N2, 3 ve 4 olarak 3 farklı konfigürasyon üzerinde yürütülmüştür. Bütün konfigürasyonlarda toplam 3 adet savak yüksekliği P0.20, 0.30 m ve 0.40 m kullanılmış olup 9 adet deney seti hazırlanmıştır. Ayrıca dairesel savaklardan elde edilen sonuçlara referans oluşturması amacıyla doğrusal savaklar ile 3 farklı savak yüksekliğinde P0.20, 0.30 m ve 0.40 m deneyler yapılmış olup toplamda 12 adet deney yapılmıştır. Dairesel savakların içerdiği göz sayısı N arttıkça debi verimi düşmüştür ve yüksekliğin debi verimi üzerine belirgin bir etkisi olmamıştır. Dairesel labirentler savak deneylerinden elde edilen sonuçlar önceki çalışmalar ile karşılaştırılmış ve yarım daire labirent savakların, üçgen kesitli labirent savaklara göre daha yüksek debi-deşarj kapasitesine sahip olduğu görülmüştür. Ayrıca yarım daire şeklindeki labirent savaklar aynı kanal genişliğinde üçgen forma göre daha uzun efektif kret uzunluğu sağlamışlardır ve aynı savak yükünde yüksek debi geçirmişlerdir.

Makale detayları

Experimental modeling of circular labyrinth weirs with different weir heights and configurations

Yazarlar:

Ali Yıldız | Ali İhsan Martı | Mustafa Göğüş

Yayıncı:

Gumushane University

Ana Başlıklar:

Mühendislik

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.373-385

Belge Tipi:

Makale

Yayın Tarihi:

4/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001287771

pISSN:

2146-538X

Open channel hydraulic

Circular sectioned weirs

Experimental modeling

Labyrinth weirsAçık kanal hidroliği

Dairesel savaklar

Deneysel modelleme

Labirent savaklar

Sayı

Makale detayları

Yazarlar: Ali Yıldız | Ali İhsan Martı | Mustafa Göğüş

Yayıncı: Gumushane University

Ana Başlıklar: Mühendislik

Dergi: Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.373-385

Belge Tipi: Makale

Yayın Tarihi: 4/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001287771

pISSN: 2146-538X

Sayı

Yazarlar:

Ali Yıldız | Ali İhsan Martı | Mustafa Göğüş

Yayıncı:

Gumushane University

Ana Başlıklar:

Mühendislik

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.373-385

Belge Tipi:

Makale

Yayın Tarihi:

4/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001287771

pISSN:

2146-538X