EXPERIMENTAL ANALYSIS OF PRESSURE DROP AND PUMP POWER IN PERISTALTIC PUMP-DRIVEN FLOW THROUGH FLEXIBLE PIPES OF VARYING DIAMETERS

Orhan Yıldırım

doi:10.17780/ksujes.1746018

TR EN

FARKLI ÇAPLARDAKİ ESNEK BORULARDAN GEÇEN PERİSTALTİK POMPA İLE TAHRİKLİ AKIŞTA BASINÇ DÜŞÜŞÜ VE POMPA GÜCÜNÜN DENEYSEL ANALİZİ

Öz

Peristaltik pompalar biyomedikal uygulamalarda yaygın olarak kullanılmasına rağmen, küçük çaplı esnek borular içindeki karmaşık akışkan-yapı etkileşimi, standart hidrolik teoriler tarafından sıklıkla basite indirgenmektedir. Bu çalışma, farklı iç çaplara (6-10 mm) ve et kalınlıklarına sahip esnek silikon borular kullanarak bir peristaltik pompanın hemodinamik performansını deneysel olarak incelemektedir. Geleneksel parametrik çalışmaların aksine; Debi Katsayısı, Basınç Katsayısı ve Güç Katsayısını Reynolds sayısının fonksiyonu olarak değerlendirmek amacıyla Buckingham Pi teoremi kullanılarak kapsamlı bir boyutsuz analiz gerçekleştirilmiştir. Ayrıca, kan uyumluluğunu değerlendirmek için Duvar Kayma Gerilmesi analiz edilmiştir. 10 mm boru kararlı bir hidrolik davranış sergilerken; 6 mm boru, radyal genişleme (balonlaşma) etkisiyle önemli hacimsel kayıplara ve basınç dalgalanmalarına maruz kalmıştır. En kritik bulgu olarak; 6 mm borudaki boyutsuz güç katsayısının 10 mm boruya göre yaklaşık 30 kat daha yüksek olduğu görülmüştür. Bu durum, hidrolik enerjinin büyük bir kısmının akışkan transferinden ziyade, duvar deformasyonunu ve yüksek sürtünme direncini yenmek için harcandığını göstermektedir. Dahası WSS analizi; 10 mm borunun güvenli aralıkta (4–14 Pa) kalmasına karşın, 6 mm borunun hemoliz için fizyolojik güvenlik sınırını (15 Pa) büyük ölçüde aşarak 90 Pa seviyesine ulaşan kayma gerilmeleri oluşturduğunu göstermiştir. Basınç üretimi; verimlilik ve hemouyumluluk arasındaki ödünleşmelerin optimize edilmesini gerektirir.

Anahtar Kelimeler

EXPERIMENTAL ANALYSIS OF PRESSURE DROP AND PUMP POWER IN PERISTALTIC PUMP-DRIVEN FLOW THROUGH FLEXIBLE PIPES OF VARYING DIAMETERS

Abstract

Although peristaltic pumps are common in biomedical, complex fluid-structure interactions within small flexible tubes are often oversimplified by standard hydraulic theories. This study experimentally investigates the hemodynamic performance of a peristaltic pump using flexible silicone tubes with different inner diameters (6-10 mm) and wall thicknesses. Unlike traditional parametric studies, a comprehensive dimensionless analysis was conducted using the Buckingham Pi theorem to evaluate the Flow Coefficient, Head Coefficient, and Power Coefficient as functions of the Reynolds number. Additionally, Wall Shear Stress was analyzed to assess hemocompatibility. While the 10 mm tube exhibited stable hydraulic behavior, the 6 mm tube suffered from significant volumetric loss and pressure fluctuations due to radial expansion. Most critically, the dimensionless Power Coefficient in the 6 mm tube was approximately 30 times higher than in the 10 mm tube, indicating that a massive portion of hydraulic energy is dissipated to overcome wall deformation and high frictional resistance. Furthermore, WSS analysis showed that the 6 mm tube generated shear stresses reaching 90 Pa, far exceeding the physiological safety limit for hemolysis (15 Pa), whereas the 10 mm tube remained within the safe range (4–14 Pa). Pressure generation requires optimizing trade-offs with efficiency and hemocompatibility.

Keywords

Destekleyen Kurum

Scientific Research Projects Coordinatorship of Atatürk University

Proje Numarası

FCD-2019-7316

Teşekkür

This study was supported by the project numbered FCD-2019-7316 by the Scientific Research Projects Coordinatorship of Atatürk University.

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Enerji Üretimi, Dönüşüm ve Depolama (Kimyasal ve Elektiksel hariç) , Makine Mühendisliği (Diğer)

Bölüm

Araştırma Makalesi

Yazarlar

Orhan Yıldırım ^*
0000-0001-8780-1297
Türkiye

Yayımlanma Tarihi

3 Mart 2026

Gönderilme Tarihi

19 Temmuz 2025

Kabul Tarihi

25 Aralık 2025

Yayımlandığı Sayı

Yıl 2026 Cilt: 29 Sayı: 1

DOI

https://doi.org/10.17780/ksujes.1746018

IZ

https://izlik.org/JA66DP83EZ

Kaynak Göster

RIS / Bibtex

APA

Yıldırım, O. (2026). EXPERIMENTAL ANALYSIS OF PRESSURE DROP AND PUMP POWER IN PERISTALTIC PUMP-DRIVEN FLOW THROUGH FLEXIBLE PIPES OF VARYING DIAMETERS. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 29(1), 448-466. https://doi.org/10.17780/ksujes.1746018