TY  - JOUR
T1  - EXPERIMENTAL ANALYSIS OF PRESSURE DROP AND PUMP POWER IN PERISTALTIC PUMP-DRIVEN FLOW THROUGH FLEXIBLE PIPES OF VARYING DIAMETERS
TT  - FARKLI ÇAPLARDAKİ ESNEK BORULARDAN GEÇEN PERİSTALTİK POMPA İLE TAHRİKLİ AKIŞTA BASINÇ DÜŞÜŞÜ VE POMPA GÜCÜNÜN DENEYSEL ANALİZİ
AU  - Yıldırım, Orhan
PY  - 2026
DA  - March
Y2  - 2025
DO  - 10.17780/ksujes.1746018
JF  - Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi
JO  - KSU J. Eng. Sci.
PB  - Kahramanmaraş Sütçü İmam Üniversitesi
WT  - DergiPark
SN  - 1309-1751
SP  - 448
EP  - 466
VL  - 29
IS  - 1
LA  - en
AB  - 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.
KW  - Peristaltic pump
KW  - dimensionless analysis
KW  - viscoelastic deformation
KW  - wall shear stress
KW  - hemodynamics
N2  - 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.
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UR  - https://doi.org/10.17780/ksujes.1746018
L1  - https://dergipark.org.tr/tr/download/article-file/5069653
ER  -