A ramjet is a form of airbreathing jet engine that requires forward motion of the engine to provide air for combustion. Ramjets work most efficiently at supersonic speeds around Mach 3 and can operate up to Mach 6.
Detonation is a type of combustion involving a supersonic exothermic front accelerating through a medium that eventually drives a shock front propagating directly in front of it. Detonations propagate supersonically through shock waves with speeds about 1 km/sec and differ from deflagrations which have subsonic flame speeds about 1 m/sec. Detonation is an explosion of fuel-air mixture. Compared to deflagration, detonation doesn't need to have an external oxidizer. Oxidizers and fuel mix when deflagration occurs. Detonation is more destructive than deflagrations. In detonation, the flame front travels through the air-fuel faster than sound; while in deflagration, the flame front travels through the air-fuel slower than sound.
Homogeneous Charge Compression Ignition (HCCI) is a form of internal combustion in which well-mixed fuel and oxidizer are compressed to the point of auto-ignition. As in other forms of combustion, this exothermic reaction produces heat that can be transformed into work in a heat engine.
Howard Wilson Emmons (1912–1998) was an American professor in the department of Mechanical Engineering at Harvard University. During his career he conducted original research on fluid mechanics, combustion and fire safety. Today he is most widely known for his pioneering work in the field of fire safety engineering. He has been called "the father of modern fire science" for his contribution to the understanding of flame propagation and fire dynamics. He also helped design the first supersonic wind tunnel, identified a signature of the transition to turbulence in boundary layer flows, and was the first to observe compressor stall in a gas turbine compressor. He initiated studies on diffusion flames inside a boundary layer, and Emmons problem is named after him. He was eventually awarded the Timoshenko Medal by the American Society of Mechanical Engineers and the 1968 Sir Alfred Egerton Gold Medal from The Combustion Institute.
Energy & Fuels is a peer-reviewed scientific journal published by the American Chemical Society. It was established in 1987. Its publication frequency switched from bimonthly to monthly in 2009. The editor-in-chief is Hongwei Wu.
The Combustion Institute is an educational non-profit, international, scientific and engineering society whose purpose is to promote research in combustion science. The institute was established in 1954, and its headquarters are in Pittsburgh, Pennsylvania, United States. The current president of The Combustion Institute is Philippe Dagaut (2021-).
Micro-combustion is the sequence of exothermic chemical reaction between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species at micro level. The release of heat can result in the production of light in the form of either glowing or a flame. Fuels of interest often include organic compounds in the gas, liquid or solid phase. The major problem of micro-combustion is the high surface to volume ratio. As the surface to volume ratio increases heat loss to walls of combustor increases which leads to flame quenching.
The eddy break-up model (EBU) is used in combustion engineering. Combustion modeling has a wide range of applications. In most of the combustion systems, fuel and oxygen are separately supplied in the combustion chamber. Due to this, chemical reaction and combustion occur simultaneously in the combustion chamber. However, the rate of the chemical reaction is faster than the rate of mixing fuel and oxygen. Therefore, that rate of combustion is controlled by rate of mixing. Such cases, where formation of pre-mixture is difficult, are called diffusion combustion or diffusion flames.
Theodosios Alexander is an American academic, engineer and author. He has served as faculty and in academic administration in four universities, in the UK and USA, following the award of four graduate degrees from MIT, and work in engineering industry.
Combustion and Flame is a monthly peer-reviewed scientific journal published by Elsevier on behalf of the Combustion Institute. It covers fundamental research on combustion science. The editors-in-chief are Fokion Egolfopoulos and Thierry Poinsot.
The International Flame Research Foundation – IFRF is a non-profit research association and network created in 1948 in IJmuiden (Netherlands), established in Livorno (Italy) between 2005 and 2016 (Fondazione Internazionale per la Ricerca Sulla Combustione – ONLUS), and in Sheffield (UK) since 2017. Meredith Thring was one of the founders.
Elaine Surick Oran is an American physical scientist and is considered a world authority on numerical methods for large-scale simulation of physical systems. She has pioneered computational technology to solve complex reactive flow problems, unifying concepts from science, mathematics, engineering, and computer science in a new methodology. An incredibly diverse range of phenomena can be modeled and better understood using her techniques for numerical simulation of fluid flows, ranging from the tightly grouped movements of fish in Earth's oceans to the explosions of far-flung supernovae in space. Her work has contributed significantly to the advancement of the engineering profession.
A rotating detonation engine (RDE) uses a form of pressure gain combustion, where one or more detonations continuously travel around an annular channel. Computational simulations and experimental results have shown that the RDE has potential in transport and other applications.
The Journal of Propulsion and Power is a bimonthly peer-reviewed scientific journal covering research on aerospace propulsion and power. The editor-in-chief is Joseph M. Powers. It is published by the American Institute of Aeronautics and Astronautics and was established in 1985.
Avinash Kumar Agarwal is director of Indian Institute of Technology, Jodhpur. He is an Indian mechanical engineer, tribologist and a professor at the Department of Mechanical Engineering of the Indian Institute of Technology, Kanpur. He is known for his studies on internal combustion engines, Emissions, alternate fuels and CNG engines and is an elected fellow of the American Society of Mechanical Engineering (2013), Society of Automotive Engineers, US (2012), National Academy of Science, Allahabad (2018), Royal Society of Chemistry, UK (2018), International Society for Energy, Environment and Sustainability (2016), and Indian National Academy of Engineering (2015). The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Engineering Sciences in 2016. Agarwal has been bestowed upon Prestigious J C Bose Fellowship of Science and Engineering Research Board. Government of India. Agarwal is among the top ten highly cited researchers (HCR) of 2018 from India, as per Clarivate Analytics, an arm of Web of Science.
Forman Arthur Williams is an American academic in the field of combustion and aerospace engineering who is Emeritus Professor of Mechanical and Aerospace Engineering at the University of California San Diego.
Combustion Science and Technology is a monthly peer-reviewed scientific journal covering research on combustion. The editor-in-chief is Richard A. Yetter. It is published by Taylor & Francis and was established in 1969. The journal was preceded by Pyrodynamics, which was published from 1964 to 1969.
Ashwani K. Gupta is a British-American engineer and educator with research focus on combustion, fuels, fuel reforming, advanced diagnostics, High Temperature Air Combustion, and high-intensity distributed combustion, green combustion turbine, micro-combustion, and air pollution. He is an Distinguished University Professor at the University of Maryland. Gupta is also Professor of Mechanical Engineering at the University of Maryland and Director of Combustion Laboratory. He is also an Affiliate Professor at Institute of Physical Science and Technology, University of Maryland which is part of the University of Maryland College of Computer, Mathematical and Natural Sciences.
Combustion Theory and Modelling is a bimonthly peer-reviewed scientific journal covering research on combustion. The editors-in-chief are Moshe Matalon and Mitchell D. Smooke. It is published by Taylor & Francis and was established in 1997. The founding editors are John W. Dold and Mitchell D. Smooke.
Nicos Ladommatos is a British mechanical engineer. From 2004, he was the Kennedy Professor for Mechanical Engineering and Head of Department for UCL Mechanical Engineering. In his career, he authored or co-authored over 150 peer-reviewed papers., specialising in the areas of combustion, combustion engines, fuel development and future fuels.
