Download or read book Reactivity of Highly Excited Diatomic Ions in Hypersonic Nonequilibrium Flow Conditions written by and published by . This book was released on 2002 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this funding cycle, we have constructed and successfully integrated a state-of-the-art guided-ion beam mass spectrometer into the high-resolution photoion-photoelectron apparatus (Endstation 2) of the Chemical Dynamics Beamline at the Advanced Light Source (ALS) for the study of ion-molecule reaction dynamics. Preliminary tests on the performance of this guided-ion beam mass spectrometer have been made, indicating that the ion-molecule reactio photoionization apparatus is performing well. We have also obtained preliminary results on the collision-induced dissociation (CID) and charge transfer (CT) cross sections for the reactions of O2 + (v + = 0-3) + Ar. We have also completed the analysis of the rotationally resolved pulsed field ionization (PFI)-photoelectron (PFI-PE) spectra for the formation of O2+(X2II3/2, 1/2g; v + =0-38), O2+(a4II5/2,3/2,1/2,-1/2u), O2+(A2113/2,1/2u, v+ =0-12), NO+(X'E+, v+ =0-32), and NO+(A'E-, v+ =0-17). The information thus obtained about these states will be needed for ion internal state-selections of O2 + and NO +. A synchrotron-based PFI-photoion (PFI-PI) detection scheme was demonstrated for rovibronic-state selection of 112+. This method is equivalent to the PFI-PE-photoion coincidence (PFI-PEPICO) method and is potentially useful for internal state-selection of reactant ions. In order for this PFI-PI scheme to be applicable to state-selections of heavier ions, such as O2 +, N2 +, and NO +, it is necessary to increase the dark gap of the synchrotron ring period to = 1 us. This can be accomplished by using a slotted chopper wheel to chop the synchrotron beam. Using an electron impact ionization source, we have also examined the CID and CT channels of the O2+(X2113/1,1/2g;v+) + Ar (Ne) reactions.
Download or read book Nonequilibrium Hypersonic Similitude in a Dissociated Diatomic Gas written by G. R. Inger and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Similitude requirements are presented for nonequilibrium dissociated diatomic gas flow around affinely-related, slender, blunted bodies at zero angle of attack, assuming small hypersonic disturbances. A dissociated nonequilibrium free stream is also considered for applications to highly nonequilibrium flows in a hypersonic wind tunnel and flight through a dissociated atmosphere produced by nuclear explosions. A discussion is given of sharp-nosed cones and wedges or slender, blunted rods and slabs, for which practical nonequilibrium similitude correlations of surface pressure and shock shape are possible. In addition, the limiting cases of equilibrium and completely frozen shock layer flow are examined. In the latter case, with a nonequilibrium dissociated free stream, a simplified limiting frozen similitude is obtained for the small disturbance flow. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Force Research Resum s written by and published by . This book was released on with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coupled Problems and Multi Physics written by Moussa Karama and published by Trans Tech Publications Ltd. This book was released on 2011-07-04 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters BCI (WoS). The objective of Coupled Problems is to present and discuss the state-of-the-art mathematical models, numerical methods and computational techniques used for solving coupled problems of a multidisciplinary nature in science and engineering. The goal of the conference was to take a step forward, in the formulation and solution of real-life problems, with a multidisciplinary vision; accounting for all of the complex couplings involved in the physical description of the problem. Simulation of multifaceted physics problems is a common task in applied research and industry. Often a suitable solver is built by connecting together several single-aspect solvers into a network. In this special issue, research in various fields was selected for consideration: adaptive methodology for multi-physics solvers, multi-physics phenomena and coupled-field problems leading to computationally intensive structural analysis. The strategies which are used to keep these problems computationally affordable are of special interest, and make this an essential reference-work.
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Force Research Resum s written by and published by . This book was released on 1964 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Equations and Physical Models for Hypersonic Air Flows in Thermal and Chemical Nonequilibrium written by Peter A. Gnoffo and published by . This book was released on 1989 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Some Hypersonic Vehicles Technologies written by Ramesh K. Agarwal and published by BoD – Books on Demand. This book was released on 2018-03-14 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes the recent progress in some hypersonic technologies such as the aerodynamic modeling and numerical simulations of rarefied flows, boundary layer receptivity, coupled aerodynamics, and heat transfer problems, including fluid-thermal-structure interactions and launcher aerodynamic design as well as other miscellaneous topics, such as porous ceramic composite phase change control system and vehicle profile, following LQR design. Both the researchers and the students should find the material useful in their work.
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1965-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasma Physics Index written by and published by . This book was released on 1973 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonequilibrium Hypersonic Aerothermodynamics written by Chul Park and published by Wiley-Interscience. This book was released on 1990-03-01 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the interaction between the fluid flow and the high temperature phenomena experienced in the hypersonic regime. Presents the principles of aerothermodynamics in nonequilibrium hypersonic flow regimes, covering theory, application and surface phenomena. Chapters 1 to 5 explain how to develop computational fluid dynamics (CFD) techniques for computing nonequilibrium, chemically reacting flows in the hypersonic regime. Chapters 6 to 8 examine the important physical phenomena that occur in hypersonic flows. The final chapter is devoted to the nonequilibrium kinetics at solid surfaces, which is useful in addressing the problems of the nonequilibrium gas-surface interactions that arise in hypersonic flight.
Download or read book Cold Chemistry written by Olivier Dulieu and published by Royal Society of Chemistry. This book was released on 2017-12-06 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen tremendous progress in research on cold and controlled molecular collisions, both in theory and in experiment. The advent of techniques to prepare cold and ultracold molecules and ions, to store them in optical lattices or in charged quasicristalline structures, and to use them in crossed or merged beam experiments have opened many new possibilities to study the most fundamental aspects of molecular interactions. At the same time, theoretical work has made progress in tackling these problems and accurately describing quantum effects in complex systems, and in proposing viable options to control chemical reactions at ultralow energies. Through tutorials on both the theoretical and experimental aspects of research in cold and ultracold molecular collisions, this book provides advanced undergraduate students, graduate students and researchers with the foundations needed to understand this exciting field.
Download or read book Journal of Thermophysics and Heat Transfer written by and published by . This book was released on 1998 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Hypersonic Aerodynamics written by and published by . This book was released on 1989 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
