Fundamentals of Turbulent and Multiphase Combustion


Book Description

Detailed coverage of advanced combustion topics from the author of Principles of combustion, Second Edition Turbulence, turbulent combustion, and multiphase reacting flows have become major research topics in recent decades due to their application across diverse fields, including energy, environment, propulsion, transportation, industrial safety, and nanotechnology. Most of the knowledge accumulated from this research has never been published in book form—until now. Fundamentals of Turbulent and Multiphase Combustion presents up-to-date, integrated coverage of the fundamentals of turbulence, combustion, and multiphase phenomena along with useful experimental techniques, including non-intrusive, laser-based measurement techniques, providing a firm background in both contemporary and classical approaches. Beginning with two full chapters on laminar premixed and non-premixed flames, this book takes a multiphase approach, beginning with more common topics and moving on to higher-level applications. In addition, Fundamentals of Turbulent and Multiphase Combustion: Addresses seven basic topical areas in combustion and multiphase flows, including laminar premixed and non-premixed flames, theory of turbulence, turbulent premixed and non-premixed flames, and multiphase flows Covers spray atomization and combustion, solid-propellant combustion, homogeneous propellants, nitramines, reacting boundary-layer flows, single energetic particle combustion, and granular bed combustion Provides experimental setups and results whenever appropriate Supported with a large number of examples and problems as well as a solutions manual, Fundamentals of Turbulent and Multiphase Combustion is an important resource for professional engineers and researchers as well as graduate students in mechanical, chemical, and aerospace engineering.



















Turbulent Shear Flows 7


Book Description

The Seventh Symposium was held on the campus of Stanford University with·a combination offacilities and weather which made it possible to add open-air poster sessions and coffee breaks to the programme. This was particularly convenient as the call for papers attracted close to three hundred abstracts and a total number of participants well in excess of this number. Some one hundred and thirty papers were presented in carefully phased parallel sessions and thirty six further contributions were made available in the form of posters. In addition, a lively open-forum session allowed additional speakers to make brief presentations. The staff of the Thermo-Sciences Division of the Department of Mechanical Engineering at Stanford undertook the local arrangements with evident success and their extensive record of contributions to Turbulent Shear Flows made the venue particularly appropriate. Also, the Centre for Turbulence Studies, based on the faculty of the University and the NASA Ames Research Center, provided a considerable body of expertise with emphasis on direct numerical stimulation.




A Numerical Model for the Development of a Boundary Layer Diffusion Flame Over a Porous Flat Plate


Book Description

Time-dependent solutions of full Navier-Stokes equations were obtained for gas phase combustion over a porous plate burner using Barely Implicit Flux Corrected Transport (BIC-FCT) algorithms. Unlike the previous boundary layer studies, our solutions are valid near the leading edge as well as the downstream. The simulations show formation of a triple flame structure, upon ignition near the leading edge. The triple flame gets weaker with time as it spreads across the porous plate and finally transitions to a typical boundary layer structure at steady state. The steady state solutions predict a maximum in axial velocity with distance from the solid surface and are similar to the existing experimental observations. The heat feedback from the flame to the surface shows a steep increase near the leading edge followed by a relatively slow decrease with distance from the leading edge. Away from the leading edge, the heat flux profile may be fitted by a power law. This is in sharp contrast to the existing boundary layer theories that show a monotonic decrease in the heat feedback. The results show that 70% of the total heat feedback occurs close (within 3 cm) to the leading edge.




Proceedings


Book Description