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Numerical Simulation of Detonation Initiation: The Quest of Grid Resolution

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Advances in Theory and Practice of Computational Mechanics

Part of the book series: Smart Innovation, Systems and Technologies ((SIST,volume 173))

Abstract

The chapter is dedicated to the numerical investigation of the grid resolution influence on the detonation initiation process in the multifocused system with the profiled end-wall. Two-dimensional system of Euler equations coupled with the single-step Arrhenius kinetic reaction mechanism was solved on completely unstructured triangular grid using the numerical scheme of second approximation order. The important technical features of interaction with SALOME software used to build an unstructured triangular computational grid, including differences in the results of the triangulation algorithms, are discussed. The content of the structure elements of the output file format CGNS of SALOME is considered. The mechanisms of detonation initiation in the multifocused system are investigated. The grid convergence problem and the influence of the resolution on flow structures are considered.

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Acknowledgements

The work of A. I. Lopato and P. S. Utkin is carried out under the state task of the ICAD of the RAS.

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Authors and Affiliations

  1. Institute for Computer Aided Design of the RAS, 19/18, Vtoraya Brestskaya ul., Moscow, 123056, Russian Federation

    Alexander I. Lopato & Pavel S. Utkin

  2. Moscow Institute of Physics and Technology (National Research University), 9, Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russian Federation

    Alexander I. Lopato, Artem G. Eremenko, Pavel S. Utkin & Dmitry A. Gavrilov

Authors
  1. Alexander I. Lopato
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  2. Artem G. Eremenko
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  3. Pavel S. Utkin
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  4. Dmitry A. Gavrilov
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Corresponding author

Correspondence to Alexander I. Lopato .

Editor information

Editors and Affiliations

  1. University of Technology Sydney, Sydney, Australia

    Lakhmi C. Jain

  2. Department of Informatics and Computer Techniques, Institute of Informatics and Telecommunications, Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia

    Margarita N. Favorskaya

  3. Institute of Computer Aided Design of the Russian Academy of Sciences (ICAD RAS), Moscow, Russia

    Ilia S. Nikitin

  4. Department of Numerical Mathematics and Computer Programming, Moscow Aviation Institute (National Research University), Moscow, Russia

    Dmitry L. Reviznikov

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Lopato, A.I., Eremenko, A.G., Utkin, P.S., Gavrilov, D.A. (2020). Numerical Simulation of Detonation Initiation: The Quest of Grid Resolution. In: Jain, L., Favorskaya, M., Nikitin, I., Reviznikov, D. (eds) Advances in Theory and Practice of Computational Mechanics. Smart Innovation, Systems and Technologies, vol 173. Springer, Singapore. https://doi.org/10.1007/978-981-15-2600-8_7

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