Thermoacoustic Combustion Instability Control

Thermoacoustic Combustion Instability Control PDF

Author: Dan Zhao

Publisher: Academic Press

Published: 2023-02-13

Total Pages: 1145

ISBN-13: 0323899188

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Thermoacoustic Combustion Instability Control: Engineering Applications and Computer Codes provides a unique opportunity for researchers, students and engineers to access recent developments from technical, theoretical and engineering perspectives. The book is a compendium of the most recent advances in theoretical and computational modeling and the thermoacoustic instability phenomena associated with multi-dimensional computing methods and recent developments in signal-processing techniques. These include, but are not restricted to a real-time observer, proper orthogonal decomposition (POD), dynamic mode decomposition, Galerkin expansion, empirical mode decomposition, the Lattice Boltzmann method, and associated numerical and analytical approaches. The fundamental physics of thermoacoustic instability occurs in both macro- and micro-scale combustors. Practical methods for alleviating common problems are presented in the book with an analytical approach to arm readers with the tools they need to apply in their own industrial or research setting. Readers will benefit from practicing the worked examples and the training provided on computer coding for combustion technology to achieve useful results and simulations that advance their knowledge and research. Focuses on applications of theoretical and numerical modes with computer codes relevant to combustion technology Includes the most recent modeling and analytical developments motivated by empirical experimental observations in a highly visual way Provides self-contained chapters that include a comprehensive, introductory section that ensures any readers new to this topic are equipped with required technical terms

Propagation of Sound in Porous Media

Propagation of Sound in Porous Media PDF

Author: J.F. Allard

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 296

ISBN-13: 9401118663

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This book has grown out of the research activities of the author in the fields of sound propagation in porous media and modelling of acoustic materials. It is assumed that the reader has a background of advanced calculus, including an introduction to differential equations, complex variables and matrix algebra. A prior exposure to theory of elasticity would be advantageous. Chapters 1-3 deal with sound propagation of plane waves in solids and fluids, and the topics of acoustic impedance and reflection coefficient are given a large emphasis. The topic of flow resistivity is presented in Chapter 2. Chapter 4 deals with sound propagation in porous materials having cylindrical pores. The topics of effective density, and of tortuosity, are presented. The thermal exchanges between the frame and the fluid, and the behaviour of the bulk modulus of the fluid, are described in this simple context. Chapter 5 is concerned with sound propagation in other porous materials, and the recent notions of characteristic dimensions, which describe thermal exchanges and the viscous forces at high frequencies, are introduced. In Chapter 6, the case of porous media having an elastic frame is considered in the context of Biot theory, where new topics described in Chapter 5 have been included.

Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines

Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines PDF

Author: Kenneth C. Hall

Publisher: Springer Science & Business Media

Published: 2006-05-11

Total Pages: 605

ISBN-13: 1402046057

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This textbook is a collection of technical papers that were presented at the 10th International Symposium on Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines held September 8-11, 2003 at Duke University in Durham, North Carolina. The papers represent the latest in state of the art research in the areas of aeroacoustics, aerothermodynamics, computational methods, experimental testing related to flow instabilities, flutter, forced response, multistage, and rotor-stator effects for turbomachinery.

European Success Stories in Industrial Mathematics

European Success Stories in Industrial Mathematics PDF

Author: Thibaut Lery

Publisher: Springer Science & Business Media

Published: 2011-09-15

Total Pages: 142

ISBN-13: 3642238483

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This unique book presents real world success stories of collaboration between mathematicians and industrial partners, showcasing first-hand case studies, and lessons learned from the experiences, technologies, and business challenges that led to the successful development of industrial solutions based on mathematics. It shows the crucial contribution of mathematics to innovation and to the industrial creation of value, and the key position of mathematics in the handling of complex systems, amplifying innovation. Each story describes the challenge that led to the industrial cooperation, how the challenge was approached and how the solutions were achieved and implemented. When brought together, they illustrate the versatile European landscape of projects in almost all areas of applied mathematics and across all business sectors. This book of success stories has its origin in the Forward Look about Mathematics and Industry that was funded by the European Science Foundation (ESF) and coordinated by the Applied Mathematics Committee of the European Mathematical Society (EMS). In each of these success stories, researchers, students, entrepreneurs, policy makers and business leaders in a range of disciplines will find valuable material and important lessons that can be applied in their own fields.​

Healthy and energy efficient buildings

Healthy and energy efficient buildings PDF

Author: Sunil K. Sansaniwal

Publisher: Frontiers Media SA

Published: 2023-12-21

Total Pages: 322

ISBN-13: 2832541119

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This Research Topic on 'Healthy and Energy Efficient Buildings' focuses on the emerging need for sustainable and healthy indoor environments. The built environment contributes significantly to energy consumption and environmental degradation, leading to adverse effects on human health and well-being. Therefore, this Research Topic aims to bring together cutting-edge research that addresses the complex interplay between building energy efficiency and occupant health. The scope of the Research Topic covers topics such as energy efficiency, indoor environmental quality, sustainable energy, health and well-being, building codes and standards, energy management and green building practices. The ultimate goal of the Research Topic is to promote sustainable building practices and enhance the well-being of building occupants while reducing the environmental impact of buildings. While energy efficiency has become a top priority in building design, there has been less emphasis on creating indoor environments that are conducive to good health. To achieve the goal of this Research Topic, recent advances in building design, construction, and operation must be incorporated. These include the use of advanced materials and technologies, such as smart sensors and automation systems that can monitor and control indoor air quality, temperature, and lighting levels to create optimal indoor conditions for occupants. Additionally, the integration of renewable energy sources, such as solar and wind power, can help reduce the carbon footprint of buildings. In order to promote healthy buildings, there is a need for more research on the impact of building design and materials on indoor air quality and occupant health. This includes exploring the use of natural ventilation and passive cooling strategies, as well as the use of low-emitting materials and finishes that do not off-gas harmful chemicals. This Research Topic seeks to address the need for sustainable buildings that prioritize both energy efficiency and occupant health.

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