Open AccessEffect of hydrodynamic action in peristaltic pump of blood gases analyzer ABL 555
Author(s) -
Ali Khaled Mohammed Ali
Publication year - 2017
Publication title -
mağallaẗ tikrīt li-l-ʻulūm al-handasiyyaẗ/tikrit journal of engineering sciences
Language(s) - English
Resource type - Journals
eISSN - 2312-7589
pISSN - 1813-162X
DOI - 10.25130/tjes.24.2.06
Subject(s) - mechanics , peristalsis , reynolds number , viscosity , tube (container) , peristaltic pump , reynolds equation , materials science , blood flow , spectrum analyzer , rotational speed , physics , chemistry , thermodynamics , classical mechanics , optics , composite material , medicine , turbulence , biochemistry
In this research, we studied the effect of hydrodynamic action in peristaltic pump of bloodgases analyzer ABL 555 which made by (Radiometer-Copenhagen), by using theories oftribology and Reynolds equation on performance of blood film convergence area, we analyzingthe influence of theoretical model for peristaltic pump (consist of steeper motor and 4 cylindricalbearings distributed on circular disc) rotating around capillary tube, by using (MATLAB R 2012b)programing with numerical solution of finite difference method in 5 nodes element , we fined theblood film thickness and the pressure on contact area grid ( consist from annual and axial lines), then influence of viscosity of blood on pressure generated in limited temperature of ambientand velocity of motor , and flow rate of blood in tube.The important conclusions appear that the rotating sliding movement of motor cause lowpressure (positive) while the rolling cylindrical rollers of bearings cause high pressure (negative)which lead to push the blood in tube, that mean the direction of rotating blood opposite thedirection of rotating motor of peristaltic pump, also the viscosity of blood effect on velocity offlow and the speed of motor with bearings, and the effect of blood film thickness effect onpressure generated in tube.