An Experimental Investigation of Lwo-speed Non-premixed Flames and Buoyant Jets Using Particle Tracking PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download An Experimental Investigation of Lwo-speed Non-premixed Flames and Buoyant Jets Using Particle Tracking PDF full book. Access full book title An Experimental Investigation of Lwo-speed Non-premixed Flames and Buoyant Jets Using Particle Tracking by Gregory Scott Lewis. Download full books in PDF and EPUB format.
Author: Gregory Scott Lewis
Publisher:
ISBN:
Category :
Languages : en
Pages : 300
Get Book Here
Book Description
Author: Gregory Scott Lewis
Publisher:
ISBN:
Category :
Languages : en
Pages : 300
Get Book Here
Book Description
Author: Stanford University. Thermosciences Division. Thermosciences Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 200
Get Book Here
Book Description
Author: D.F.G. Durão
Publisher: Springer Science & Business Media
ISBN: 9401125880
Category : Science
Languages : en
Pages : 566
Get Book Here
Book Description
This book consists of papers prepared for and presented at a NATO sponsored Advanced Study Institute which was held in Montechoro, Portugal during the period 16-27 April, 1990. This Institute was attended by approximately ninety delegates from fifteen countries and followed from a related Institute held in Vimeiro, Portugal in 1987 (see the book entitled "Instrumentation for Combustion and Flow in Engines", edited by D. F. G. Dur~o, J. H. Whitelaw and P. O. Witzel. The purposes of the first Institute related closely to instrumentation for use in gas-turbine combustors and the cylinders of internal-combustion engines. These topics were also addressed in the second Institute, though in a manner which was wider ranging and chosen to demonstrate and explain the development and application of measurement methods to combusting flows in general. The papers contained in this boo~ were selected to provide the reader with a comprehensive and up-to-date view of the variety of experimental techniques available to measure in combusting flows. Included are discussions of their range and applicability, potential accuracy and ease of use. Thus, the first paper provides a brief overview and the second an indication of those aspects of combustion which should influence the choice of flow property to be measured and the technique to be used.
Author: Stanford University. Thermosciences Division. Thermosciences Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 276
Get Book Here
Book Description
Author: Sina Rafati
Publisher:
ISBN:
Category :
Languages : en
Pages : 408
Get Book Here
Book Description
This research aims to investigate the nonlinear dynamics of the non-reacting jets and non-premixed lifted jet flames. The goal is to understand better how the flow system dynamics change over time and identify the path toward unwanted conditions such as flashback, extinction, or blowout to limit combustors' dynamical failure. The existence of these undesirable conditions is bound to the fluid's history, meaning that initiated perturbation may persist in the system for time scales comparable to large-scale flow timescales. Hence, the notion is to utilize jet and jet flames as a study test case to work out how the flow evolves dynamically with the hope of understanding how to limit occurrences of the chaotic unwanted condition. Initially, planar particle image velocimetry has been used for the development of the methodologies. I have used planar data to investigate the nonlinear dynamics of non-reacting turbulent jets, with a low-to-moderate Reynolds number using the single-trajectory framework and ensemble framework. I have used Lyapunov exponents to calculate the spectra of scaling indices of the attractor. Then, I used Lagrangian Coherent Structures (LCSs), which are defined as manifolds that are locally Euclidean and invariant, to study the relationship between Lyapunov exponent changes with flow topological features. These LCSs behave as hypersurfaces with maximally repelling or attracting properties. These various methodologies were used to investigate flame-turbulence interaction in lifted jet flames. The Lagrangian framework is shown to be effective at revealing the kinematics associated with flame-turbulence interaction. The LCSs' time history represents how eddy structures interact with the flame and highlight their role in the dynamics of the lifted jet flames. Finally, I have investigated the flame and turbulence interaction using high-speed luminosity imaging and simultaneous three-dimensional particle image velocimetry. The three-dimensional Lagrangian structures provide us a more detailed flow-flame interaction. It is shown that the flow features associated with attracting LCSs can create a barrier attracting the flame that makes the flame move upstream. In contrast, the presence of repelling LCSs near stationary flames breaks the balance between the gas velocity and flame propagation speed, causing the flame to become non-stationary and move downstream. It was also found that the repelling LCSs induce negative curvature on the flame surface whereas pushing the flame toward the products. However, the attracting LCSs induce positive curvature on the flame surface and draws the flame toward the reactants
Author: Ellen Kathryn Longmire
Publisher:
ISBN:
Category :
Languages : en
Pages : 258
Get Book Here
Book Description
Author: Joe Whiteaker
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
Get Book Here
Book Description
Author: Christopher J. Rutland
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Get Book Here
Book Description
The laminar flame problem is solved using a phase plane method.
Author:
Publisher:
ISBN:
Category : Building
Languages : en
Pages : 128
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 364
Get Book Here
Book Description
