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Journals / Karadeniz Fen Bilimleri Dergisi / 2022 / Cilt: 12 - Sayı: 1

Numerical Analysis of Heat and Flow Characteristics of Decaying Flow in Different Geometries Created Externally in a Horizontal Pipe

Yatay Bir Boruda Dışarıdan Oluşturulan Farklı Geometrilerdeki Dönel Akışın Isı ve Akış Karakteristiklerinin Sayısal Analizi

Ahmet Numan ÖZAKIN
İlhan Volkan ÖNER
Pages
414–424
Publication Date
2022-10-19
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results of the study, the flow through the triangular swirl generator showed the best cooling performance, although it caused relatively high pressure drop.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, a numerical model was designed to examine turbulent flow induced by the use of three different swirl generators (Triangular-Circular-Square) attached at the pipe inlet.
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Key Findings & Data:In this respect, numerical analyses on a horizontal pipe with a constant heat flux of 1000 W/m2 were done at three different Reynolds numbers: 5000, 10000, and 15000 in the CFD environment.
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Conclusion & Impact:According to the results of the study, the flow through the triangular swirl generator showed the best cooling performance, although it caused relatively high pressure drop.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Isı transferi iyileştirme · dönel akış · dönel akış oluşturucu

Abstract

In this study, a numerical model was designed to examine turbulent flow induced by the use of three different swirl generators (Triangular-Circular-Square) attached at the pipe inlet. In this respect, numerical analyses on a horizontal pipe with a constant heat flux of 1000 W/m2 were done at three different Reynolds numbers: 5000, 10000, and 15000 in the CFD environment. According to the results of the study, the flow through the triangular swirl generator showed the best cooling performance, although it caused relatively high pressure drop. The highest Nusselt number for triangular swirl generator was determined to be approximately 51.88 at 15000 Reynolds numbers.

Özet

Bu çalışmada, boru girişine bağlı üç farklı girdap üretecinin (Üçgen-Dairesel-Kare) kullanılmasıyla indüklenen türbülanslı akışı incelemek için sayısal bir model tasarlanmıştır. Bu doğrultuda 1000 W/m2 sabit ısı akışına sahip yatay bir boru üzerinde sayısal analizler HAD ortamında 5000, 10000 ve 15000 olmak üzere üç farklı Reynolds sayısında yapılmıştır. Çalışmanın sonuçlarına göre, nispeten yüksek basınç düşüşüne neden olmasına rağmen, üçgen girdap üretecinden geçen akış en iyi soğutma performansını gösterdi. Üçgen girdap üreteci için en yüksek Nusselt sayısı 15000 Reynolds sayısında yaklaşık 51.88 olarak tespit edilmiştir.

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Cite This Article

ÖZAKIN, A. N., ÖNER, İ. V. (2022). Numerical Analysis of Heat and Flow Characteristics of Decaying Flow in Different Geometries Created Externally in a Horizontal Pipe. Karadeniz Fen Bilimleri Dergisi, Cilt: 12 - Sayı: 1, 414–424. https://ajindex.com/articles/570334

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