Lattice Boltzmann Method for 3-D Flows with Curved Boundary
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Lattice Boltzmann Method for 3-D Flows with Curved Boundary

Lattice Boltzmann Method for 3-D Flows with Curved Boundary


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About the Book

In this work, we investigate two issues that are important to computational efficiency and reliability in fluid dynamics applications of the lattice, Boltzmann equation (LBE): (1) Computational stability and accuracy of different lattice Boltzmann models and (2) the treatment of the boundary conditions on curved solid boundaries and their 3-D implementations. Three athermal 3-D LBE models (D3QI5, D3Ql9, and D3Q27) are studied and compared in terms of efficiency, accuracy, and robustness. The boundary treatment recently developed by Filippova and Hanel and Met et al. in 2-D is extended to and implemented for 3-D. The convergence, stability, and computational efficiency of the 3-D LBE models with the boundary treatment for curved boundaries were tested in simulations of four 3-D flows: (1) Fully developed flows in a square duct, (2) flow in a 3-D lid-driven cavity, (3) fully developed flows in a circular pipe, and (4) a uniform flow over a sphere. We found that while the fifteen-velocity 3-D (D3Ql5) model is more prone to numerical instability and the D3Q27 is more computationally intensive, the 63Q19 model provides a balance between computational reliability and efficiency. Through numerical simulations, we demonstrated that the boundary treatment for 3-D arbitrary curved geometry has second-order accuracy and possesses satisfactory stability characteristics. Mei, Renwei and Shyy, Wei and Yu, Dazhi and Luo, Li-Shi Langley Research Center NASA/CR-2002-211657, NAS 1.26:211657, ICASE-2002-17


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Product Details
  • ISBN-13: 9781721509720
  • Publisher: Createspace Independent Publishing Platform
  • Publisher Imprint: Createspace Independent Publishing Platform
  • Height: 279 mm
  • No of Pages: 38
  • Spine Width: 2 mm
  • Width: 216 mm
  • ISBN-10: 1721509720
  • Publisher Date: 19 Jun 2018
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 113 gr


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