CFD analysis of particulate flow in a radial inflow turbine
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Report (30,60Mb) (Accés restringit)
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2099.1/25163
Tutor / directorJörg Bart, Hans
Realitzat a/ambTechnische Universität Kaiserslautern
Tipus de documentTreball Final de Grau
Data2013
Condicions d'accésAccés restringit per decisió de l'autor
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Abstract
In the present thesis a study of the erosion rates that blades from a typical radial
inflow turbine suffer because of the ingested flow containing solid particles is
presented. The mentioned study has been conducted by carrying out a series of CFD
simulations using the software package ANSYS CFX.
The obtained results indicate that there are three main surface areas where significant erosion loss occurs. The first of them and by far the most affected part of the turbine is located at the trailing edge of the stator blade, where a relatively great number of impacts with low angles strike the surface. This surface area is found to be
affected by a concentration effect, that is, many particles impinging a small surface
area.
The second but lesser affected part is the leading edge of the suction side of the
rotor blade, on which many particles strike many times due to particles being trapped
in a vortex area. The third and last surface area which is eroded significantly, but in
comparison to the other parts facing much less erosion, is the central part of the
pressure side of the rotor blade.
Additionally, several influencing factors have been studied to determine their influence on the erosion rate density, such as angular velocity, particle concentration,
particle shape and size and blade material. The relation between these factors and the erosion rate density has been determined. Besides, a final study about the compressibility effects that may have been affected the study has been conducted in
order to ensure the validity of the simulations of the thesis.
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
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Master Thesis.pdf | Report | 30,60Mb | Accés restringit |