Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
APPLICATION OF SPECTRAL ANALYSIS TECHNIQUES TO CAVITATION IN CENTRIFUGAL PUMPS
Date
1993-11-05
Author
ERALP, OC
ORUC, S
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
144
views
0
downloads
Cite This
An experimental investigation has been performed to study the inception of cavitation and the effect of entrained air on cavitation in a double suction centrifugal pump. Experiments have been organized to cover off-design flow rates and reduced suction pressures independently so that has been possible to study both the effect of flow rate and suction pressure. Air of known amounts has been entrained from the suction pipe to investigate its effect on the intensity of cavitation and the performance of the pump. Pressure transducers and a FM tape recorder have been used to record the pressure signals acquired from three locations on the set-up. Consequently the data has been digitized and processed by spectral analysis techniques. The power spectra and the RMS values of the pressure signals have been investigated to reveal the inception and extend of cavitation as well as the effect of entrained air. As a result of the study carried out, it has been possible to conclude that spectral analysis techniques are useful tools for the detection of the inception and extend of cavitation and that although having some cushioning effect at the suction side of the pump air entrainment is not an effective method in reducing cavitation damage.
Subject Keywords
Thermodynamics
,
Engineering, Mechanical
URI
https://hdl.handle.net/11511/66045
Collections
Department of Mechanical Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
EVALUATION OF FLUX MODELS FOR RADIATIVE-TRANSFER IN RECTANGULAR FURNACES
Selçuk, Nevin (1988-07-01)
Three flux-type models for three-dimensional radiative heat transfer were applied to the prediction of the radiative flux density and the source term of a box-shaped enclosure problem based on data reported previously on a large-scale experimental furnace with steep temperature gradients. The models, which are a six-term discrete ordinate model and two Schuster-Schwarzschild type six-flux models, were evaluated from the viewpoints of both predictive accuracy and computational economy by comparing their pred...
Experimental investigation and modeling of dropwise condensation on a horizontal gold coated tube /
Serdar, Orhan; Yamalı, Cemil; Department of Mechanical Engineering (2004)
The phenomenon dropwise condensation on a horizontal gold coated tube is investigated by both analytical and experimental methods in this study. A computer program is prepared to calculate the dropwise condensation heat transfer rate on the horizontal gold coated tube. An experimental setup was also manufactured to measure the dropwise condensation heat transfer rate. The effects of flow rate, temperature of cooling water and also steam to wall temperature difference have been analytically investigated by u...
Direct numerical simulation of liquid flow in a horizontal microchannel
Kükrer, Cenk Evren; Tarı, İlker; Department of Mechanical Engineering (2005)
Numerical simulations of liquid flow in a micro-channel between two horizontal plates are performed. The channel is infinite in streamwise and spanwise directions and its height is taken as m, which falls within the dimension ranges of microchannels. The Navier-Stokes equations with the addition of Brinkman number (Br) to the energy equation are used as the governing equations and spectral methods based approach is applied to obtain the required accuracy to handle liquid flow in the microchannel. It is know...
DEPENDENT ABSORPTION AND SCATTERING BY INTERACTING NANOPARTICLES
Donmezer, Fatma Nazli; MENGÜÇ, MUSTAFA PINAR; Okutucu Özyurt, Hanife Tuba (2010-01-01)
Dependent light scattering and absorption patterns of metallic nano-sized particles in interaction with other spherical and cone-like structures were investigated. The numerical solution of the light scattering problem was obtained using DDSCAT7.0 code. The surface integration of the Poynting vector is performed to estimate the spectral absorption by individual particles. Parametric studies were conducted to examine the effects of different parameters, including the geometry, size, shape and the position of...
Experimental study of solid propellant combustion instability
Çekiç, Ayça; Ulaş, Abdullah; Department of Mechanical Engineering (2005)
In this study, experimental investigation of solid propellant combustion instability using an end burning T-Burner setup is performed. For this purpose, a T-Burner setup is designed, analyzed, constructed and tested with all its sub components. T-Burner setup constructed is mainly composed of a base part, a control panel and the T-Burner itself. Combustion chamber, pressure stabilization mechanism, pressurization system, measurement instruments and data acquisition systems form the T-Burner. Pressure stabil...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
O. ERALP and S. ORUC, “APPLICATION OF SPECTRAL ANALYSIS TECHNIQUES TO CAVITATION IN CENTRIFUGAL PUMPS,” 1993, p. 443, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66045.