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  • English  (2)
  • 1
    Online Resource
    Online Resource
    Combustion Diagnostics by Nonintrusive Methods. (1984)
    Reston :American Institute of Aeronautics and Astronautics,
    Details
    Keywords: Combustion -- Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (355 pages)
    Edition: 1st ed.
    ISBN: 9781600863462
    Series Statement: Progress in Astronautics and Aeronautics
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=3111469
    DDC: 629.1 s;621.402/3
    Language: English
    Note: Cover -- Title -- Copyright -- Table of Contents -- Preface -- Chapter I. CARS -- CARS Diagnostics of High Pressure and Temperature Gases -- CARS Thermometry and N2 Number-Density Measurments in a Turbulent Diffusion Flame -- Comparison of CARS Combustion Temperatures with Standard Techniques -- Electronically Resonant CARS Detection of OH -- Simultaneous CARS and Luminosity Measurements in a Bluff-Body Combustion -- Chapter II. Laser-Induced Fluorescence. -- Nonintrusive Pressure Measurements with Laser-Induced Iodine Fluorescence -- Laser-Induced Schlieren Effect in Sodium-Nitrogen Mixtures -- Use of Laser-Induced Fluorescence for Fundamental Gas-Phase Kinetic Measurements -- Chapter III. Particle Diagnostics -- Nonintrusive Laser-Based Particle Diagnostics - Invited Review -- Interpretation of Optical Measurements of Soot in Flames -- In Situ Measurement of the Complex Refractive Index of Combustion Generated Particulates -- Chapter IV. Combustion Diagnostics Applications -- Temperature and Concentration Measurements in an Internal Combustion Engine Using Laser Raman Spectroscopy -- Rayleigh Thermometry with Low-Power Laser Sources -- Laser Tomography for Simultaneous Concentration and Temperature Measurement in Reacting Flows -- Flow Measurement in a Model Combustion Chamber -- Author Index.
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  • 2
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    Perpendicular diffusion of solar energetic particles: When is the diffusion approximation valid? (2020)
    In:  Journal of Physics : Conference Series
    Details
    Publication Date: 2021-02-03
    Description: Multi-spacecraft observations of widespread solar energetic particle (SEP) events indicate that perpendicular (to the mean field) diffusion is an important SEP transport mechanism. However, this is in direct contrast to so-called spike and drop-out events, which indicate very little lateral transport. To better understand these seemingly incongruous observations, we discuss the recent progress made towards understanding and implementing perpendicular diffusion in transport models of SEP electrons. This includes a re-derivation of the relevant focused transport equation, a discussion surrounding the correct form of the pitch-angle dependent perpendicular diffusion coefficient and what turbulence quantities are needed as input, and how models lead to degenerate solutions of the particle intensity. Lastly, we evaluate the validity of a diffusion approach to SEP transport and conclude that it is valid when examining a large number of (an ensemble of) events, but that individual SEP events may exhibit coherent structures related to the magnetic field turbulence at short timescales that cannot be accounted for in this modelling approach.
    Language: English
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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