Flow investigation in a centrifugal pump

With increasing people suffering from cardiovascular diseases, it has led to an increase in the demand for Ventricular Assist Devices (VAD). There are mainly two categories of VAD devices and centrifugal pumps are one of categories that can be used to aid a failing heart. However, there are also pos...

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Main Author: Tan, Jun Sen
Other Authors: Chan Weng Kong
Format: Final Year Project
Language:English
Published: 2014
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Online Access:http://hdl.handle.net/10356/60496
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-604962023-03-04T18:49:09Z Flow investigation in a centrifugal pump Tan, Jun Sen Chan Weng Kong Wong Yew Wah School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering::Fluid mechanics With increasing people suffering from cardiovascular diseases, it has led to an increase in the demand for Ventricular Assist Devices (VAD). There are mainly two categories of VAD devices and centrifugal pumps are one of categories that can be used to aid a failing heart. However, there are also possible cons to using VADs, this cons are mainly hemolysis and thrombus formation in centrifugal pumps. Therefore, the main purpose of this experiment is to investigate the leakage flow in the pump that may cause this thrombus formation and hemolysis. A Computational Fluid Dynamics (CFD) analysis of the centrifugal pump model will be done using ANSYS V14.5. In the pump model, there are mainly two leakage gap, one in front of the outer volute and the other in the back of the outer volute. There are mainly 4 leakage gap heights ranging from 0.2mm to 0.5mm and each gap height will operate at 1500rpm, 2000rpm and 2500rpm. The operating flow rate of the model can range from 2lpm to 5lpm. From the experiment, it can be observed that the leakage flow depends on several factors. This includes the leakage gap heights, rotational speed and the pressure difference within the leakage gaps. The leakage flow was observed to increase with the increase in leakage gap heights, rotational speeds and pressure difference. Bachelor of Engineering (Mechanical Engineering) 2014-05-27T08:37:06Z 2014-05-27T08:37:06Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60496 en Nanyang Technological University 71 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering::Fluid mechanics
spellingShingle DRNTU::Engineering::Mechanical engineering::Fluid mechanics
Tan, Jun Sen
Flow investigation in a centrifugal pump
description With increasing people suffering from cardiovascular diseases, it has led to an increase in the demand for Ventricular Assist Devices (VAD). There are mainly two categories of VAD devices and centrifugal pumps are one of categories that can be used to aid a failing heart. However, there are also possible cons to using VADs, this cons are mainly hemolysis and thrombus formation in centrifugal pumps. Therefore, the main purpose of this experiment is to investigate the leakage flow in the pump that may cause this thrombus formation and hemolysis. A Computational Fluid Dynamics (CFD) analysis of the centrifugal pump model will be done using ANSYS V14.5. In the pump model, there are mainly two leakage gap, one in front of the outer volute and the other in the back of the outer volute. There are mainly 4 leakage gap heights ranging from 0.2mm to 0.5mm and each gap height will operate at 1500rpm, 2000rpm and 2500rpm. The operating flow rate of the model can range from 2lpm to 5lpm. From the experiment, it can be observed that the leakage flow depends on several factors. This includes the leakage gap heights, rotational speed and the pressure difference within the leakage gaps. The leakage flow was observed to increase with the increase in leakage gap heights, rotational speeds and pressure difference.
author2 Chan Weng Kong
author_facet Chan Weng Kong
Tan, Jun Sen
format Final Year Project
author Tan, Jun Sen
author_sort Tan, Jun Sen
title Flow investigation in a centrifugal pump
title_short Flow investigation in a centrifugal pump
title_full Flow investigation in a centrifugal pump
title_fullStr Flow investigation in a centrifugal pump
title_full_unstemmed Flow investigation in a centrifugal pump
title_sort flow investigation in a centrifugal pump
publishDate 2014
url http://hdl.handle.net/10356/60496
_version_ 1759855133873668096