Quantitative Measurements Of Inlet Vortex Flow Field

DOWNLOAD

Download Quantitative Measurements Of Inlet Vortex Flow Field PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Quantitative Measurements Of Inlet Vortex Flow Field book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Quantitative Measurements Of Inlet Vortex Flow Field

DOWNLOAD
Author : Cheryl Lynn Shippee
language : en
Publisher:
Release Date : 1984

Quantitative Measurements Of Inlet Vortex Flow Field written by Cheryl Lynn Shippee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.

Quantative Investigation Of Inlet Vortex Flow Field

DOWNLOAD
Author : Hyoun-Woo Shin
language : en
Publisher:
Release Date : 1984

Quantative Investigation Of Inlet Vortex Flow Field written by Hyoun-Woo Shin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Compressors categories.

An Innovative Approach To Nonintrusive Quantitative Measurements Of Vortex Flows

DOWNLOAD
Author : Gerald N. Malcolm
language : en
Publisher:
Release Date : 1988

An Innovative Approach To Nonintrusive Quantitative Measurements Of Vortex Flows written by Gerald N. Malcolm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

A unique flow measurement technique was used to obtain quantitative vortex flow field data. This demonstration demonstrated that a video based data acquisition system, Expertvision, could be used to measure the velocity of flow through some parts of the flow field. The system systematically tracks packets of colored dye ejected from the models into there surrounding flow fields and then subsequently reduces the data to position, velocity and acceleration measurements for individual vortex cores. Vortex core data were collected for 70 and 80 degree delta wing models with both stationary and forced roll oscillation roll conditions. Keywords: Flow visualization, Flow measurement, Vortex flow. (jhd).

Secondary Flow Approach To The Inlet Vortex Flow Field

DOWNLOAD
Author : Henri Charles Viguier
language : en
Publisher:
Release Date : 1980

Secondary Flow Approach To The Inlet Vortex Flow Field written by Henri Charles Viguier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Compressors categories.

A Group Velocity Criterion For Breakdown Of Vortex Flow An Application To Measured Inlet Profiles

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1979

A Group Velocity Criterion For Breakdown Of Vortex Flow An Application To Measured Inlet Profiles written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.

A Nonintrusive Method Of Quantifying Flow Visualization Data In Vortex Flow Fields

DOWNLOAD
Author : Vincent Joseph Sei
language : en
Publisher:
Release Date : 1994

A Nonintrusive Method Of Quantifying Flow Visualization Data In Vortex Flow Fields written by Vincent Joseph Sei and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.

Velocity Field Measurement Of A Scroll Vortex Intake Flow

DOWNLOAD
Author : Jiuhao Guo
language : en
Publisher: Open Dissertation Press
Release Date : 2017-01-26

Velocity Field Measurement Of A Scroll Vortex Intake Flow written by Jiuhao Guo and has been published by Open Dissertation Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-26 with categories.

This dissertation, "Velocity Field Measurement of a Scroll Vortex Intake Flow" by Jiuhao, Guo, 郭九昊, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: A scroll vortex intake is a hydraulic structure that transfers water stably from one elevation to a lower one by generating a swirling vortex flow down a vertical drop- shaft. Scroll vortex intakes are applied widely in water supply, stormwater drainage and sewerage systems. For a good engineering design, a sufficiently large and stable air core needs to be maintained within the dropshaft. Although a number of the- oretical and experimental investigations have been conducted, the understanding and predictions of the vortex flow is still far from complete due to a lack of de- tailed velocity field and air core measurements. This study aims to achieve a better understanding of the scroll vortex intake flow. The hydraulic theory of scroll vortex intake is revisited and detailed measurements of air core and velocity field of the vortex flow is conducted. A 1:15 physical model of a scroll vortex intake has been designed according to dynamic Froude similitude and constructed. Experiments have been conducted to measure the head-discharge relation. Piezometric head and air core size are measured at the throat of the vortex flow. Velocity fields are measured using Laser Doppler Anemometry (LDA). The measurements show that the vortex flow in the chamber resembles a free vortex and the circulation is approximately equal to that at the inlet to chamber. The chamber flow is not affected by the bottom boundary effect at bottom above a depth of the order of the dropshaft diameter. The throat section of the vor- tex flow is located slightly below the chamber bottom and within the bellmouth at the entrance to dropshaft. For the vortex flow in and downstream of the bell- mouth, the tangential velocity distribution can be described by a Rankine vortex (combination of forced and free vortex); the transition from forced to free vortex occurs at around the middle of the vortex flow layer. The pressure is positive for all locations and all discharges. Due to viscous effect, the maximum circulation is found to be lower than the inlet circulation. Consistent with the free vortex theory, the vertical velocity in the dropshaft is approximately constant. By accounting for the loss of circulation between chamber inlet and the dropshaft, a new 1D theory is proposed. Unlike previous models, the new theory gives good predictions of head-discharge relation and minimum air core size without the need of physically unrealistic assumptions. This study has revealed the structure of a scroll vortex intake flow for the first time. Characteristic flow features of the scroll vortex intake have been elucidated. The findings have helped to explain and resolve the long-standing discrepancies between the theoretical predictions of three representative 1D hydraulic theories. The vortex flow measurements also provide a basis for the development of a new theory and the validation of 3D numerical models. DOI: 10.5353/th_b4807988 Subjects: Vortex-motion Fluid dynamic measurements

Flow Visualization Study Of The Inlet Vortex Phenomenon

DOWNLOAD
Author : Francesca De Siervi
language : en
Publisher:
Release Date : 1981

Flow Visualization Study Of The Inlet Vortex Phenomenon written by Francesca De Siervi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Boundary layer categories.

Applied Mechanics Reviews

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1985

Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Mechanics, Applied categories.

Vortex Flow Field Study

DOWNLOAD
Author : Michael J. DeSantis
language : en
Publisher:
Release Date : 1970

Vortex Flow Field Study written by Michael J. DeSantis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with categories.

An experimental investigation of the flow field in the pancake region of a three-dimensional axisymmetric vortex rate sensor was conducted. Basically the device consists of two coaxial cylindrical surfaces with outlet tubes located on the axis of symmetry perpendicular to the surfaces. Radial inflow of the fluid develops into a sink flow with a vortex generated by an angular rate input through fluid coupling at the periphery of the device. Detailed descriptions of radial and circumferential velocity profiles over a specific range of operating parameters are presented. Hot wire anemometry techniques were utilized to measure the velocity profiles. Experimental results indicate that for gap distances between the coaxial plates greater than 0.25 inches and an inlet radius of 11 inches, the vortex flow throughout is essentially inviscid with boundary layer development along the walls. For gap distances of 0.1 inches or less, fully developed flow occurs near the inlet of the pancake region for pure radial flow. The velocity profiles exhibit a parabolic distribution for pure-radial flow. (Author).