Multidimensional On-lattice Higher-order Models in the Thermal Lattice Boltzmann Theory

📝 Original Info

• Title: Multidimensional On-lattice Higher-order Models in the Thermal Lattice Boltzmann Theory
• ArXiv ID: 1303.4624
• Date: 2020-11-10
• Authors: Researchers from original ArXiv paper

📝 Abstract

We present a set of uniform polynomial equations that provides multidimensional on-lattice higher-order models of the lattice Boltzmann theory, while keeping compact the number of discrete velocities. As examples, we explicitly derive two- and three-dimensional on-lattice models applicable to describing thermal compressible flows of the accuracy levels of the Navier-Stokes equations with smaller numbers of discrete velocities in comparison to the existing models. We demonstrate the accuracy and stability of the three-dimensional model by using the Riemann problem.

💡 Deep Analysis

Deep Dive into Multidimensional On-lattice Higher-order Models in the Thermal Lattice Boltzmann Theory.

We present a set of uniform polynomial equations that provides multidimensional on-lattice higher-order models of the lattice Boltzmann theory, while keeping compact the number of discrete velocities. As examples, we explicitly derive two- and three-dimensional on-lattice models applicable to describing thermal compressible flows of the accuracy levels of the Navier-Stokes equations with smaller numbers of discrete velocities in comparison to the existing models. We demonstrate the accuracy and stability of the three-dimensional model by using the Riemann problem.

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