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Large Scale Simulation of Hydrogen Dispersion by a Stabilized Balancing Domain Decomposition Method

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  • Qing-He Yao
  • Xin Pan

Abstract

The dispersion behaviour of leaking hydrogen in a partially open space is simulated by a balancing domain decomposition method in this work. An analogy of the Boussinesq approximation is employed to describe the connection between the flow field and the concentration field. The linear systems of Navier‐Stokes equations and the convection diffusion equation are symmetrized by a pressure stabilized Lagrange‐Galerkin method, and thus a balancing domain decomposition method is enabled to solve the interface problem of the domain decomposition system. Numerical results are validated by comparing with the experimental data and available numerical results. The dilution effect of ventilation is investigated, especially at the doors, where flow pattern is complicated and oscillations appear in the past research reported by other researchers. The transient behaviour of hydrogen and the process of accumulation in the partially open space are discussed, and more details are revealed by large scale computation.

Suggested Citation

  • Qing-He Yao & Xin Pan, 2014. "Large Scale Simulation of Hydrogen Dispersion by a Stabilized Balancing Domain Decomposition Method," Journal of Applied Mathematics, John Wiley & Sons, vol. 2014(1).
    • Handle: RePEc:wly:jnljam:v:2014:y:2014:i:1:n:686873
    DOI: 10.1155/2014/686873
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    References listed on IDEAS

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    1. Qinghe Yao & Xin Pan & Qingyong Zhu, 2014. "Numerical Simulation of the Hydrogen Dispersion Behavior by a Parallel Characteristic Curve Method," Abstract and Applied Analysis, Hindawi, vol. 2014, pages 1-8, February.
    2. Qinghe Yao & Qingyong Zhu, 2013. "A Pressure-Stabilized Lagrange-Galerkin Method in a Parallel Domain Decomposition System," Abstract and Applied Analysis, Hindawi, vol. 2013, pages 1-13, June.
    3. Qing-He Yao & Qing-Yong Zhu, 2013. "Investigation of the Contamination Control in a Cleaning Room with a Moving AGV by 3D Large-Scale Simulation," Journal of Applied Mathematics, Hindawi, vol. 2013, pages 1-10, February.
    4. Qinghe Yao & Qingyong Zhu, 2013. "A Pressure‐Stabilized Lagrange‐Galerkin Method in a Parallel Domain Decomposition System," Abstract and Applied Analysis, John Wiley & Sons, vol. 2013(1).
    5. Qing-He Yao & Qing-Yong Zhu, 2013. "Investigation of the Contamination Control in a Cleaning Room with a Moving AGV by 3D Large‐Scale Simulation," Journal of Applied Mathematics, John Wiley & Sons, vol. 2013(1).
    6. Qinghe Yao & Xin Pan & Qingyong Zhu, 2014. "Numerical Simulation of the Hydrogen Dispersion Behavior by a Parallel Characteristic Curve Method," Abstract and Applied Analysis, John Wiley & Sons, vol. 2014(1).
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    1. Qinghe Yao & Qingyong Zhu, 2013. "A Pressure‐Stabilized Lagrange‐Galerkin Method in a Parallel Domain Decomposition System," Abstract and Applied Analysis, John Wiley & Sons, vol. 2013(1).
    2. Qinghe Yao & Xin Pan & Qingyong Zhu, 2014. "Numerical Simulation of the Hydrogen Dispersion Behavior by a Parallel Characteristic Curve Method," Abstract and Applied Analysis, John Wiley & Sons, vol. 2014(1).

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