Numerical Simulation of Combustion Wave Initiation in Mono-disperse Fuel Sprays by an Ignition Kernel 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 Numerical Simulation of Combustion Wave Initiation in Mono-disperse Fuel Sprays by an Ignition Kernel PDF full book. Access full book title Numerical Simulation of Combustion Wave Initiation in Mono-disperse Fuel Sprays by an Ignition Kernel by S.-C. Wong. Download full books in PDF and EPUB format.
Author: S.-C. Wong
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: S.-C. Wong
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 992
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 616
Get Book Here
Book Description
Author: Saptarshi Basu
Publisher: Springer
ISBN: 9811074496
Category : Technology & Engineering
Languages : en
Pages : 433
Get Book Here
Book Description
This book focuses on droplets and sprays relevant to combustion and propulsion applications. The book includes fundamental studies on the heating, evaporation and combustion of individual droplets and basic mechanisms of spray formation. The contents also extend to the latest analytical, numerical and experimental techniques for investigating the behavior of sprays in devices like combustion engines and gas turbines. In addition, the book explores several emerging areas like interactions between sprays and flames and the dynamic characteristics of spray combustion systems on the fundamental side, as well as the development of novel fuel injectors for specific devices on the application side. Given its breadth of coverage, the book will benefit researchers and professionals alike.
Author: Bart Merci
Publisher: Springer Science & Business Media
ISBN: 3319046780
Category : Technology & Engineering
Languages : en
Pages : 167
Get Book Here
Book Description
This book reflects the results of the 2nd and 3rd International Workshops on Turbulent Spray Combustion. The focus is on progress in experiments and numerical simulations for two-phase flows, with emphasis on spray combustion. Knowledge of the dominant phenomena and their interactions allows development of predictive models and their use in combustor and gas turbine design. Experts and young researchers present the state-of-the-art results, report on the latest developments and exchange ideas in the areas of experiments, modelling and simulation of reactive multiphase flows. The first chapter reflects on flame structure, auto-ignition and atomization with reference to well-characterized burners, to be implemented by modellers with relative ease. The second chapter presents an overview of first simulation results on target test cases, developed at the occasion of the 1st International Workshop on Turbulent Spray Combustion. In the third chapter, evaporation rate modelling aspects are covered, while the fourth chapter deals with evaporation effects in the context of flamelet models. In chapter five, LES simulation results are discussed for variable fuel and mass loading. The final chapter discusses PDF modelling of turbulent spray combustion. In short, the contributions in this book are highly valuable for the research community in this field, providing in-depth insight into some of the many aspects of dilute turbulent spray combustion.
Author: S. Aggarwal
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Get Book Here
Book Description
A detailed parametric study of the ignition of a monodisperse fuel-air spray in contact with a hot wall was conducted. The theoretical model was one-dimensional unsteady and employed a hybrid Eulerian-Lagrangian numerical scheme. Effects of drop size, chemical kinetics, fuel-air ratios, fuel type and other parameters were examined. The results indicated the statistical character of the spray ignition, the existence of optimum droplet size and optimum fuel-air ratio for the minimum ignition delays. The study was extended to the polydisperse spray. The major conclusion was that the polydisperse results can be correlated with an equivalent monodisperse spray represented by a mean diameter based on the total spray surface area. The study of ignition for sprays flowing over a hot plate as initiated. The formulation and the numerical coding were completed. Currently the code is being employed to predict the ignition delays for the flowing sprays. Preliminary experiments were conducted to investigate the ignition of a single droplet stream along a heated surface. The results show an optimal distance from the surface for the droplet stream. It is speculated that this distance depends on the characteristic evaporation time, diffusion time and convective time inherent to the system. Experiments separating the effects are underway to investigate this interactive process. (Author).
Author: Danyal Mohaddes Khorassani
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Due to their high energy density and ease of transportation, liquid fuels continue to be used in a variety of combustion systems, including in aerospace, automotive and industrial applications. Analysis of the underlying physics of multiphase combustion phenomena, particularly as it pertains to ignition, contributes to improved physical understanding and supports greater system reliability and safety. High-fidelity numerical simulations are particularly effective in supporting improved fundamental understanding, but detailed simulations of practical multiphase combustion configurations are highly computationally costly. The study of accidental ignition of liquid fuels and the development of computationally efficient means of performing physically accurate multiphase combustion simulations are therefore important avenues of scientific inquiry. This dissertation considers the problem of the ignition and combustion of a wall-impinging fuel spray using four complementary approaches. First, to analyze the long-term wall heat flux caused by a wall-stagnating spray flame, a steady, one-dimensional, multi-continuum formulation is developed with consideration given to conjugate heat transfer effects. Second, an unsteady, one-dimensional, multi-continuum formulation is developed and a broad parametric study of the hot surface ignition of wall-stagnating fuel sprays is conducted. Third, high-fidelity three-dimensional large-eddy simulations are performed in an Eulerian-Lagrangian formulation using a finite-rate chemistry model. Fourth, the substantial computational cost of the high-fidelity simulations performed motivates the development of a computationally efficient spray combustion modeling framework. This dissertation extends the Pareto-efficient combustion (PEC) modeling framework to spray combustion through a rigorous analysis of the governing equations. The spray-augmented PEC formulation is applied to the high-fidelity simulation of a wall-stagnating spray flame and to the simulation of a realistic gas turbine combustor to demonstrate improved physical fidelity compared to tabulated chemistry, while reducing computational cost compared to monolithic finite-rate chemistry.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 634
Get Book Here
Book Description
Author: American Institute of Aeronautics and Astronautics. Technical Information Service
Publisher:
ISBN:
Category : AIAA paper
Languages : en
Pages : 196
Get Book Here
Book Description
Author: Jennifer Wiley
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
