Lattice Boltzmann simulation of flow past a circular cylinder near a moving wall

Zhen, Haicheng; Wu, Fangfang

doi:10.1002/fld.2662

Cited by 8 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The resolved part is defined by the convolution product of Equation (36), The convolution kernel G is a characteristic parameter for the applied filter, as shown in Equation (37),…”

Section: Lattice Boltzmann Methods Combined With Les Turbulence Modelsmentioning

confidence: 99%

“…The third one is the calculation results can be directly applied into subsequent modules, simplifying the program process. In the subsequent calculation processes, both interpolation algorithm used by curved boundary treatment such as FH 14 (Filippova and Hanel) and YMS proposed by Yu et al, 36 and wall function used by turbulence models, need to solve the wall‐normal distance 37 and the horizontal angle between each point on the wall and the X‐axis. And they can be easily solved by Green's formula or Gauss's formula, which greatly cuts down the amount of calculation and reduces complexity of the algorithm.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A mathematical‐boundary‐recognition domain‐decomposition Lattice Boltzmann method combined with large eddy simulation applied to airfoil aeroacoustics simulation

Jia,

Zhang,

Liang

et al. 2024

Numerical Methods in Fluids

View full text Add to dashboard Cite

Being a direct computational aeroacoustics method, Lattice Boltzmann method (LBM) has great potential and broad application perspective in the field of numerical simulation of aerodynamic noise due to its low dispersion and low dissipation. A series of numerical algorithms and the related improvements based on the standard LBM method are proposed and developed in this paper to adapt to the airfoil noise calculation with complex grid at middle‐high Reynolds number. First, a new mathematical‐boundary‐recognition algorithm based on Green's formula is proposed to deal with complex curved geometric models, which is validated by three‐element airfoil 30P30N benchmark. Then, in order to reduce grid redundancy and improve computing efficiency, the grid refinement technique of domain decomposition model (DDM) is adopted and also improved, which is verified by calculating the flow and sound fields around 2D and 3D cylinders at Reynolds number equal to 90,000. Finally, three different LES turbulence models are combined with the standard MRT‐LBM method, where different finite difference schemes are used to solve Reynolds stress tensor which is different from the traditional one. Through the direct acoustic numerical simulation of NACA0012 airfoil at Reynolds number equal to 200,000, the effects of Smagorinsky models and Wall‐adapting local eddy‐viscosity (WALE) model on aerodynamic noise prediction are compared and analyzed. Overall, the proposed methodology is shown to be appropriate for predicting the aerodynamic noise at low Mach number and can successfully simulate the generation and propagation of far field acoustics.

show abstract

“…The resolved part is defined by the convolution product of Equation (36), The convolution kernel G is a characteristic parameter for the applied filter, as shown in Equation (37),…”

Section: Lattice Boltzmann Methods Combined With Les Turbulence Modelsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

A mathematical‐boundary‐recognition domain‐decomposition Lattice Boltzmann method combined with large eddy simulation applied to airfoil aeroacoustics simulation

Jia,

Zhang,

Liang

et al. 2024

Numerical Methods in Fluids

View full text Add to dashboard Cite

show abstract

“…LBM has advantages of easy programming, parallel computing, and easy handling of complex boundary conditions, etc. [8].…”

Section: Lattice Boltzmann Methodsmentioning

confidence: 99%

“…Two-dimensional nine-velocity model (D2Q9) is adopted in our simulation. The standard lattice Boltzmann Bhatnagar-Gross-Krook (LBGK) equation is [8] The macroscopic variables ρ , u can be linearly described by distribution function:…”

Section: A Lattice Boltzmann Equationmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Study on Spoiler Torque Effect to a Half Buried Pipeline

Zheng¹,

Shi²,

Yu³

2015

Proceedings of the International Conference on Computer Information Systems and Industrial Applications

View full text Add to dashboard Cite

The kinetics of flow around submarine pipeline with spoiler is studied by lattice Boltzmann method. The pipeline is half buried in the seabed. The existence of spoiler not only increases the contact pressure difference along seabed surface, but also leads to additional torque acting on the pipeline center. The latter has certain potential safety hazard to pipeline. Present study gives torque level under different spoiler height and the corresponding mechanism is illustrated.

show abstract