Journals / European Journal of Technique (EJT) / 2026 / Cilt: 16 Sayı: 1

Louver Design for High-Efficiency Air Intake: Enhancing Diesel Generator Inlet Performance Using Sinusoidal Tubercle Model

Yüksek Verimli Hava Girişi için Panjur Tasarımı: Sinüzoidal Tüberkül Modeli Kullanılarak Dizel Jeneratör Giriş Performansının Artırılması

Alp Büyükbayraktar(AKSA POWER GENERATOR / AKSA JENERATÖR)0000-0002-7344-0694
Özgür Karaer(AKSA JENERATÖR / AKSA GENERATOR)0009-0001-1915-3774
Pages
98–108
Publication Date
2026-07-01
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AI Summary & Key Takeaways

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

The results demonstrated that the Tubercle geometry delays flow separation, enhances airflow uniformity in the diesel generator intake section, and reduces pressure drop compared to conventional straight louver designs.

📌 3 Key Takeaways

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Objective & Hypothesis:This study aims to numerically investigate the effect of the Tubercle phenomenon, inspired by humpback whale flippers, on the aerodynamic performance of ventilation louvers located in the intake compartments of diesel generator enclosures.
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Key Findings & Data:The aerodynamic performance, pressure drop, and flow uniformity of this biomimetic Tubercle-based model, which has been widely discussed in academic literature, were evaluated using Computational Fluid Dynamics (CFD).
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Conclusion & Impact:The results demonstrated that the Tubercle geometry delays flow separation, enhances airflow uniformity in the diesel generator intake section, and reduces pressure drop compared to conventional straight louver designs.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Tüberkül Etkisi · Dizel Jeneratör · Emiş Tasarımı

Abstract

This study aims to numerically investigate the effect of the Tubercle phenomenon, inspired by humpback whale flippers, on the aerodynamic performance of ventilation louvers located in the intake compartments of diesel generator enclosures. In industrial generator cabins, air inlet louvers used in high-flow applications often experience flow separation and excessive pressure drop issues in conventional designs. These problems naturally lead to challenges in cabin climate control and acoustics. Therefore, this study seeks to provide an innovative solution to the high-pressure loss and flow separation problems caused by traditional straight-edged louvers. A sinusoidal design applied to the leading edges of the louvers was developed, where the amplitude and wavelength of the protrusions vary in a correlated manner. The aerodynamic performance, pressure drop, and flow uniformity of this biomimetic Tubercle-based model, which has been widely discussed in academic literature, were evaluated using Computational Fluid Dynamics (CFD). Flow analyses were conducted under identical design and boundary conditions for each configuration, including velocity contours, turbulence intensity, and pressure loss distributions. The results demonstrated that the Tubercle geometry delays flow separation, enhances airflow uniformity in the diesel generator intake section, and reduces pressure drop compared to conventional straight louver designs. Among the three configurations, the M3 model exhibited the most balanced aerodynamic performance. This study indicates potential power savings in the generator cooling fan and improvements in the acoustic performance of the cabin, offering a novel and innovative perspective for optimizing both internal cooling and flow organization in diesel generator enclosures.

Özet

Bu çalışma, kambur balina yüzgeçlerinden esinlenen Tubercle Etkisi'nin, dizel jeneratör kabinlerinde bulunan emiş ceplerine ait havalandırma louverlarının aerodinamik performansı üzerindeki etkisini sayısal olarak incelemeyi amaçlamaktadır. Endüstriyel jeneratör kabinleri yüksek debili uygulamalarda kullanılan hava giriş louver'ları, geleneksel tasarımlarda akış ayrılması ve yüksek basınç kaybı (ΔP) sorunları yaşar. Bu durum doğal olarak kabin içi iklimlendirme ve akustik olarak bazı problemler doğurmaktadır. Geleneksel düz kenarlı louverların neden olduğu yüksek basınç kaybı ve akış ayrılması problemlerine yenilikçi bir çözüm getirilmesi hedeflenmiştir.Louverların ön büküm geometrilerine uygulanan sinüsoidal tasarım, tümseklerin, genlik ve dalga boyunun birbirine bağlı olarak değişmesiyle elde edilmiştir. Akademik araştırmalarda sıklıkla kullanılan bu Biyo-mimetik modelin aerodinamik performansı, basınç düşüşü ve homojenliği CFD kullanılarak sonuçlandırılması çalışmamızın ana konusudur. Akış analizleri, aynı tasarım koşulları ve sınır koşulları altında, her bir tasarım için hız konturları, türbülans yoğunluğu ve basınç kaybı dağılımlarını kapsamaktadır. Tubercle geometrisinin akış ayrılmasını geciktirdiğini, dizel jeneratör emiş bölgesinde hava akışını daha homojen hale getirdiğini ve klasik düz louver tasarımlarına kıyasla basınç kaybını azalttığını göstermiştir. Üç farklı tasarım arasında, M3 modeli en dengeli aerodinamik performansı sağladığı görülmüştür.Bu çalışma, jeneratör kabinlerine ait emiş sistemlerinde bulunan fanın gücünde muhtemel bir tasarrufa ve akustik anlamda iyileşen bir sisteme işaret ederken, hem kabin içi soğutma hem de kabin içi akış düzenini iyileştirmeye yönelik farklı ve yenilikçi bir bakış açısı sunmaktadır.

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Cite This Article

Büyükbayraktar, A., Karaer, Ö. (2026). Louver Design for High-Efficiency Air Intake: Enhancing Diesel Generator Inlet Performance Using Sinusoidal Tubercle Model. European Journal of Technique (EJT), Cilt: 16 Sayı: 1, 98–108. https://doi.org/10.36222/ejt.1816253

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