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Amable Liñán
Amable Liñán Martínez (born Noceda de Cabrera, Castrillo de Cabrera, León, Spain in 1934) is a Spanish aeronautical engineer considered a world authority in the field of combustion. Biography He holds a PhD in Aeronautical Engineering from the Technical University of Madrid, advised by :es:Gregorio Millán Barbany and Degree of Aeronautical Engineer from the Caltech advised by Frank E. Marble. He is currently Professor of Fluid Mechanics and professor emeritus at the Higher Technical School of Aeronautical Engineers of the Polytechnic University of Madrid (attached to the Department of Motorcycle and Thermofluidodynamics of said school). He has taught at universities in California, Michigan and Princeton University in the United States and in Marseilles in France, among others. Since 1997 he is an adjunct professor at Yale University. Research He has focused his research studies on the basic problems of combustion, both reactor and planetary probe dynamics, in the lat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Most Excellent
The Most Excellent ( Spanish: ''Excelentísimo Señor'' (male) or ''Excelentísima Señora'' (female), literally "Most Excellent Sir/Madam") is an honorific prefix that is traditionally applied to certain people in Spain and certain Spanish-speaking countries. Following Spanish tradition, it is an '' ex officio'' style (the holder has it as long as they remain in office, in the most important positions of state) and is used in written documents and very formal occasions. The prefix is similar (but not equal) to that of " His/Her Excellency", but in the 19th century "The Most Excellent" began to replace the former. The use of the prefix Excellency was re-introduced in Francoist Spain by ''Generalísimo'' Francisco Franco himself, who was formally styled as '' Su Excelencia el Jefe del Estado'' ("His Excellency The Head of State"), while his ministers and senior government officials continued using the prefix "The Most Excellent". The prefix " The Most Illustrious" (''Ilustrísimo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liñán's Diffusion Flame Theory
Liñán diffusion flame theory is a theory developed by Amable Liñán in 1974 to explain the diffusion flame structure using activation energy asymptotics and Damköhler number asymptotics.Liñán, A., Martínez-Ruiz, D., Vera, M., & Sánchez, A. L. (2017). The large-activation-energy analysis of extinction of counterflow diffusion flames with non-unity Lewis numbers of the fuel. Combustion and Flame, 175, 91-106. Liñán used counterflowing jets of fuel and oxidizer to study the diffusion flame structure, analyzing for the entire range of Damköhler number. His theory predicted four different types of flame structure as follows, * ''Nearly-frozen ignition regime'', where deviations from the frozen flow conditions are small (no reaction sheet exist in this regime), * ''Partial burning regime'', where both fuel and oxidizer cross the reaction zone and enter into the frozen flow on other side, * ''Premixed flame regime'', where only one of the reactants cross the reaction zone, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moshe Matalon (engineer)
Moshe Matalon is an Israeli-American mechanical engineer and applied mathematician, currently the Caterpillar Distinguished Professor at University of Illinois at Urbana–Champaign. He finished his bachelor's and master's degree from Tel Aviv University in 1973 and completed his PhD in 1977 from Cornell University, under the supervision of Geoffrey S.S. Ludford. He worked at New York University Tandon School of Engineering from 1978 to 1980 and then at Northwestern University from 1980 to 2006. He finally moved to University of Illinois at Urbana–Champaign in 2007. His research area includes combustion and fluid dynamics In physics and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids— liquids and gases. It has several subdisciplines, including ''aerodynamics'' (the study of air and other gases in motion) an .... Matalon was elected Fellow of the American Physical Society (APS) in 1995, Fellow of the Institute of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forman A
Forman may refer to: Places: * Forman, North Dakota, city in Sargent County, North Dakota, United States *Forman, West Virginia, unincorporated community in Grant County, West Virginia, United States *Forman Glacier between Mount Franke and Mount Cole, in the Queen Maud Mountains of Antarctica * Forman Park, in Syracuse, New York Surname: * A. G. Forman CBE (1910–1967), Chief of Naval Staff of the Ghana Navy * Al Forman (1928–2013), baseball umpire * Alexander A. Forman (1843–1922), American soldier in the American Civil War * Alison Forman (born 1969), Australian soccer player * Andrew Forman (1465–1521), Scottish diplomat and Archbishop * Arthur Forman (1850–1905), English schoolmaster and cricketer * Bill Forman (1886–1958), baseball player *Bruce Forman (born 1956), American jazz guitarist * Carol Forman (1918–1997), American actress *Charles William Forman (1821–1894), Presbyterian missionary in Pakistan * Christine Jones Forman, American astrophysicist * Craig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norbert Peters (engineer)
Norbert Peters (10 July 1942 – 4 July 2015) was a professor at RWTH Aachen University, Germany and one of the world-wide authorities in the field of combustion engineering. He headed the '' Institut für Technische Verbrennung ''(Institute for Combustion Technology). Born in Linz, Austria, he was educated at the Karlsruhe University of Technology and later at the Technical University of Berlin. He worked in Rourkela Steel Plant for six months. Peters's primary research interest was in the field of combustion engineering, especially turbulent flames. The interaction between turbulence and combustion constituted an important part of his research. He was author of the book titled ''Turbulent Combustion'', a monograph with excellent but challenging insights on the advances, problems, and active research in the field of combustion in turbulent flow media. He was well known for his ideas on the Laminar flamelet model in turbulent combustion as well as for the systematic generation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Academy Of Engineering
The National Academy of Engineering (NAE) is an American nonprofit, non-governmental organization. The National Academy of Engineering is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Sciences (NAS), the National Academy of Medicine, and the National Research Council (now the program units of NASEM). The NAE operates engineering programs aimed at meeting national needs, encourages education and research, and recognizes the superior achievements of engineers. New members are annually elected by current members, based on their distinguished and continuing achievements in original research. The NAE is autonomous in its administration and in the selection of its members, sharing with the rest of the National Academies the role of advising the federal government. History The National Academy of Sciences was created by an Act of Incorporation dated March 3, 1863, which was signed by then President of the United States Ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caltech
The California Institute of Technology (branded as Caltech or CIT)The university itself only spells its short form as "Caltech"; the institution considers other spellings such a"Cal Tech" and "CalTech" incorrect. The institute is also occasionally referred to as "CIT", most notably in its alma mater, but this is uncommon. is a private research university in Pasadena, California. Caltech is ranked among the best and most selective academic institutions in the world, and with an enrollment of approximately 2400 students (acceptance rate of only 5.7%), it is one of the world's most selective universities. The university is known for its strength in science and engineering, and is among a small group of institutes of technology in the United States which is primarily devoted to the instruction of pure and applied sciences. The institution was founded as a preparatory and vocational school by Amos G. Throop in 1891 and began attracting influential scientists such as George Ellery ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZFK Equation
ZFK equation, abbreviation for Zeldovich–Frank-Kamenetskii equation, is a reaction–diffusion equation that models premixed flame propagation. The equation is named after Yakov Zeldovich and David A. Frank-Kamenetskii who derived the equation in 1938 and is also known as the Nagumo equation. The equation is analogous to KPP equation except that is contains an exponential behaviour for the reaction term and it differs fundamentally from KPP equation with regards to the propagation velocity of the traveling wave. In non-dimensional form, the equation reads :\frac = \frac + \omega(\theta) with a typical form for \omega given by :\omega =\frac \theta(1-\theta) e^ where \theta\in ,1/math> is the non-dimensional dependent variable (typically temperature) and \beta is the Zeldovich number. In the ZFK regime, \beta\gg 1. The equation reduces to Fisher's equation for \beta\ll 1 and thus \beta\ll 1 corresponds to KPP regime. The minimum propagation velocity U_ (which is usually the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liñán's Flame Speed
In combustion, Liñán's flame speed provides the estimate of the upper limit for edge-flame propagation velocity, when the flame curvature is small. The formula is named after Amable Liñán. When the flame thickness is much smaller than the mixing-layer thickness through which the edge flame is propagating, a flame speed can be defined as the propagating speed of the flame front with respect to a region far ahead of the flame. For small flame curvatures (flame stretch), each point of the flame front propagates at a laminar planar premixed speed S_L that depends on a local equivalence ratio \phi just ahead of the flame. However, the flame front as a whole do not propagate at a speed S_L since the mixture ahead of the flame front undergoes thermal expansion due to the heating by the flame front, that aids the flame front to propagate faster with respect to the region far ahead from the flame front. Liñán estimated the edge flame speed to be: :\frac \sim \left(\frac\right)^, where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shvab–Zeldovich Formulation
The Shvab–Zeldovich formulation is an approach to remove the chemical-source terms from the conservation equations for energy and chemical species by linear combinations of independent variables, when the conservation equations are expressed in a common form. Expressing conservation equations in common form often limits the range of applicability of the formulation. The method was first introduced by V. A. Shvab in 1948 and by Yakov Zeldovich in 1949. Method For simplicity, assume combustion takes place in a single global irreversible reaction \sum_^N \nu_i' \real_i \rightarrow \sum_^N \nu_i'' \real_i where \real_i is the ith chemical species of the total N species and \nu_i' and \nu_i'' are the stoichiometric coefficients of the reactants and products, respectively. Then, it can be shown from the law of mass action that the rate of moles produced per unit volume of any species \omega is constant and given by \omega = \frac where w_i is the mass of species i produced or consum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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