Related Experiment Video
Updated: Oct 17, 2026

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
Published on: June 1, 2022
Fuzzy Logic-Based Modeling and Multi-Objective Optimization of Blood Pump Rotational Speed Considering Hydraulic and
Abdoulaye Billo Diallo1, Hasan Çınar2, Ömer İncebay1
1Konya Technical University, Akademi, Yeni İstanbul Cd. No:235/1, Selçuklu, Konya, 42250, Turkey.
Abstract:
This study aims to determine the optimal operating rotational speed of a centrifugal blood pump. In order to investigate this, a centrifugal blood pump was designed, and its hydraulic efficiency and hemolysis index were calculated using computational fluid dynamics (CFD) simulations over a range of 2500-3500 rpm for rotational speed and 2.5-6 L/min for flow rate. The pump design was carried out by considering key geometric parameters, including the number of blades, inlet and outlet widths, inlet and outlet angles, impeller diameter, volute inlet width, and volute outlet diameter. Subsequently, a fuzzy logic-based pump model was developed using rotational speed and mass flow rate as input parameters, and pressure difference, hemolysis index, and hydraulic efficiency as output parameters. After validating this model with CFD simulations, the optimal pump rotational speed was determined by solving an objective function incorporating hydraulic efficiency and hemolysis index using the particle swarm optimization (PSO) algorithm. The results indicate that the optimal rotational speed of the centrifugal pump is 3150 rpm, at which a hydraulic efficiency of 36% and a hemolysis index (HI) of 1.65x10-5 are achieved. In summary, this study presents a systematic methodology for determining the optimal operating speed that enables centrifugal blood pumps to operate efficiently while maintaining a low hemolysis index.
More Related Videos
08:59Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
Published on: June 13, 2022
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
Related Concept Videos
Typical Model Studies
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
Modeling and Similitude
Design Example: Creating a Hydraulic Model of a Dam Spillway
Mechanical Efficiency of Real Machines
However, in reality, no machine can be truly ideal, and all of them experience some...