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3 edition of Time-dependent computational studies of premixed flames in microgravity found in the catalog.

Time-dependent computational studies of premixed flames in microgravity

Time-dependent computational studies of premixed flames in microgravity

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  • 15 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Combustion -- Effect of reduced gravity on.

  • Edition Notes

    Other titlesTime dependent computational studies of premixed ....
    StatementK. Kailasanath, G. Patnaik, and E.S. Oran.
    SeriesNASA contractor report -- 191051., NASA contractor report -- NASA CR-191051.
    ContributionsPatnaik, G., Oran, Elaine S., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL14693247M

    Suppression of instabilities of swirled premixed flames with minimal secondary hydrogen injection. () Combustion and Flame, ISSN Mercier, Matthieu and Wang, Shiyan and Péméja, Justin and Ern, Patricia and Ardekani, Arezoo. Sedimentation of disks in a linearly stratified fluid. Based on the computational results obtained, a reduced chemical model for MILD combustion will then be developed and implemented in codes for simulation of turbulent combustion in JHC burners. Prof. Yu has published 2 book chapters, Biography: Stephen P. Engelstad is currently a Lockheed Martin Senior 50 archival journal articles, 56 conference papers. Her research work has Fellow with specialty in Computational Mechanics and Composite also led to 6 awarded US patents, 2 provisional patent applications, and Structures.


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Time-dependent computational studies of premixed flames in microgravity Download PDF EPUB FB2

Time-Dependent Computational Studies of Flames in Microgravity (USA-CEs8) TllJ E-DEE EkE E &I ~ CCf!PUZAIlCWAL S'IDTIES CP €LAELLS 18 EICROGbAVITY Einal BeFort, 1SE5 CEC. - EEC. (Eaval EeEearch lab.) F CSCL 22A Unclar G3/29 02 Elaine S. Oran and K. Kailasanath Naval Research Laboratory Washington, D.

Get this from a library. Time-dependent computational studies of premixed flames in microgravity. [G Kailasanath; G Patnaik; Elaine S Oran; United States. National Aeronautics and Space Administration.].

Effects of chemically-passive Time-dependent computational studies of premixed flames in microgravity book suppressants on laminar premixed hydrogen flames were investigated by combined use of microgravity experiments and computations. There have also been studies on the influence of gravity on PPFs.

The experimental investigations of these flames under m-g conditions have been performed using the s drop tower facility at. Introduction.

This is the first experimental investigation of burner stabilized partially premixed flames (PPFs) in microgravity (μg). PPFs are characterized by two or more reaction zones, of which at least one is chemically controlled and another transport-limited.They are established when a rich fuel–air mixture at an equivalence ratio ϕ > 1 burns in the presence of air or a Cited by: Computational and experimental results obtained for the partially premixed flames at different equivalence ratios (∞, 46, 11, and 5) are shown in Fig.

In these images, direct photographs of the experimental flames obtained with a ms exposure time are shown in the left halves, while the corresponding simulated flames are shown in the Cited by: adaptive, time-dependent, multidimensional, Low Mach number Combustion Simulation (LMCS), benchmarked against a range of two dimensional laboratory experiments, including planar v-flames and axisymmetric non-premixed jet flames [7], are compared to experiments conducted in premixed methane/air laminar flames stabilized on a well-File Size: 2MB.

() A two-dimensional planar computational investigation of flame broadening in confined non-premixed jets. Combustion and Flame() Inhibition of nonpremixed flames by phosphorus-containing by: @article{osti_, title = {Lean flammability limit of downward propagating hydrogen-air flames}, author = {Patnaik, G.

and Kailasanath, K.}, abstractNote = {Detailed multidimensional numerical simulations that include the effects of wall heat losses have been performed to study the dynamics of downward flame propagation and extinguishment in lean hydrogen-air mixtures.

On September, investigators from the First United States Microgravity Laboratory (USML-1) and the First United States Microgravity Payload (USMP-1) Missions met with the Microgravity Measurement Group (MGMG) in Huntsville, Alabama, to discuss science results and the microgravity environments from the respective missions.

Influence of G-jitter on the characteristics of a non-premixed flame: Experimental approach Microgravity Science and Technology. Brahmi L, Vietoris T, Rouvreau S, Joulain P, David L, Torero JL. Microgravity laminar diffusion flame in a perpendicular fuel and oxidizer stream configuration Aiaa Journal.

Gretar Tryggvason is the Charles A. Miller, Jr. Distinguished Professor in Mechanical Engineering and head of the Department of Mechanical Engineering at Johns Hopkins University. Tryggvason came to Johns Hopkins from the University of Notre Dame, where he was the Viola D.

Hank Professor and chair of the Department of Aerospace and Mechanical Engineering ( – [ ]. Full text of "Microgravity Science and Applications. Program Tasks and Bibliography for FY " See other formats. Unfortunately, this book can't be printed from the OpenBook.

If you need to print pages from this book, we recommend downloading it as a PDF. Visit to get more information about this book, to buy it in print, or to download it as a free PDF.

() Computational model of forward and opposed smoldering combustion in microgravity. Proceedings of the Combustion Institute() Development of a Semi-implicit Solver for Detailed Chemistry in Internal Combustion Engine by: Articles can cover a wide range of topics, such as: premixed laminar flames, laminar diffusion flames, turbulent combustion, fires, chemical kinetics, pollutant formation, microgravity, materials synthesis, vapour deposition, catalysis, droplet and spray combustion, detonation dynamics, thermal explosions, ignition, energetic materials and.

Close Drawer Menu Close Drawer Menu Menu. Home; Journals. AIAA Journal; Journal of Aerospace Information Systems; Journal of Air Transportation; Journal of Aircraft; Journal of.

Preliminary Experimental and Computational Study of Time varying Laminar Non-Premixed Ethylene/Nitrogen Flames. In Australian Combustion Symposium, December 7th-9th, Melbourne, Australia, Joachim Beeckmann, Liming Cai, David Schaback, Raik Hesse and Heinz Pitsch.

A thermodynamic model has been developed to calculate burning speed and entropy production of transient expending spherical laminar flame in an enclosed vessel. The model also predicts the particle trajectories of both unburned and burned gases in the vessel.

The input to this model is the dynamic pressure rise due to combustion process. The unburned gases are divided into three regions: The Cited by: Modeling the Importance of Spatially Distinct Habitats in Time Dependent Animal Migration Networks.

(Jun - Aug ) Freeman Levine Heat Conduction and Flame Dynamics. (June - present) Papers A Computational Model for a Non-Premixed Microcombustor with Heat Conducting Walls. (In preparation) Presentations. @article{osti_, title = {Introduction to combustion theory}, author = {Buckmaster, J.D.}, abstractNote = {A preliminary chapter introduces the equations of the subject, and touches lightly upon some specific problems, in an attempt to convey something of its flavor as a branch of applied mathematics, or a superset of theoretical fluid mechanics.

sources in the cosmic dark ages. Many studies have been done on the 21 cm emission and absorption from the halo of individual first stars (Chuzhoy et al.CenLiu et al. A common conclusion of these works is that the configurations of the 21 cm emission and absorption regions is strongly time-dependent.

The reason is simple. Cryogenic Two-Phase Flow and Phase-Change Heat Transfer in Microgravity Item menu. The challenges and limitations of experimental studies in vivo make computational models an invaluable complement.

In this thesis, oxygen transport from capillaries to tissue is investigated using a new numerical model that is tailored for validation with experimental data. Experiments in Fluids manuscript No.

(will be inserted by the editor) Steve Cochard Christophe Ancey Tracking the free surface of time-dependent flows: Image processing for the dam-break problem Received: date / Accepted: date Abstract The dam-break problem (i.e., the sudden re-lease of a given volume of fluid down a slope) has at-Cited by: February Program in Applied and Computational Mathematics, Princeton University, Princeton, NJ.

Modeling Bistability of Motoneuron Firing Patterns. Michael Booty. January AIAA 34th Annual Meeting, Reno, Nevada. Time-dependent Premixed Deflagrations. March SIAM Sixth International Conference on Numerical Combustion, New Orleans, LA. A study on vortex flow control of inlet distortion in the re-engined center inlet duct using computational fluid dynamics BERNHARD ANDERSON, PAO HUANG.

arXiv:comp-gas/v1 27 May Global Bifurcations in Rayleigh-B´enard Convection: Experiments, Empirical Maps and Numerical Bifurcation Analysis I. Kevrekidis and R.

Rico-Mart´ınez Department of Chemical Engineering, Princeton University, Princeton, NJ R. Ecke1, R. Farber 2and A. Lapedes. unsteady discrete adjoint formulation for high-order discontinuous galerkin discretizations in time-dependent flow problems Wang, L.

/ Mavriplis, D. / Anderson, K. / American Institute of Aeronautics and Astronautics | About the Book MECHANICAL ENGINEERING is one of the most fundamental subject taught to B. Tech. first year students of all disciplines in all engineering colleges.

This book is primarily written in accordance with the syllabus of M.D.U., Rohtak. The main objective of this book is to provide students a background necessary in the field of mechanical engineering and enable them to understand the.

Worked with Dr. Chih-Jen Sung on a microgravity premixed combustion experiment in collaboration with NASA Glenn Research Center. Project involved the use of non-intrusive optical techniques, such.

The fundamental elements and methods of Lagrangian transport analysis in time-dependent flows that are the main subject of the book are described in the fourth, fifth, and sixth chapters. The seventh chapter gives a brief survey of some of the rapidly evolving research in geophysical fluid dynamics that makes use of this new approach.

by-nc-nd pub astronomia fisica public The chain-branching process leading to ignition in the hydrogen-air mixing layer is studied by application of a novel WKB-like method with a.

The foundational studies contained in this book focus on a broad range of subjects, including conceptual framework of data mining, data preprocessing and data mining as generalization, probability theory perspective on fuzzy systems, rough set methodology on missing values, inexact multiple-grained causal complexes, complexity of the privacy.

Full text of "Studying Turbulence Using Numerical Simulation Databases, 8. Proceedings of the Summer Program" See other formats. There is an Open Access version for this licensed article that can be read free of charge and without license restrictions.

The content of the Open Access version may differ from. time-dependent quantum simulation of spinor BECs to advance the state of the art. The purpose of this communication is to present a quantum computing method to accurately model a spin-2 BEC. The method is based on an infinite-order expansion of the hyperfine spin-density interaction.

It is useful for modeling the time-dependent dynamics and. In his book, Bejan 1 showed that the EGM method was dependent on the use of fluid mechanics, heat transfer, and thermodynamics in its application as shown in Figure 1. This method uses the nondimensional entropy generation number (N s) that is defined as the entropy generation divided by the fluid heat capacity rate, which is considered the.

The results will be used to establish stabilization and blow-off mechanism of laminar premixed flames and to determine the effect of fuel gas diffusivity on flame stabilization limits.

Comparison between different strategies for the realization of flashing-light effects – Pneumatic mixing and flashing illumination; Experimental and numerical analysis of the heat transfer in a packed bed exposed to the high thermal radiation flux. This document has been archived.

Title: NSF Directory of Awards, Engineering Directorate Type: Dir of Awards NSF Org: ENG Date: File: nsf Introduction T.Publishing platform for digital magazines, interactive publications and online catalogs.

Convert documents to beautiful publications and share them worldwide. Title: Topical Teams in Life & Physical Sciences (SP), Author: European Space Agency, Length: pages, Published: Schmidt, H. and Klein, R. () Extension of a front capturing/tracking scheme for premixed flames to a novel type of two scale turbulence modeling.

In: Proc. SIAM Conference on Numerical Combustion, April 23 - 26,Granada, Spain.