3차원 차분격자볼츠만 모델에의 내부자유도 적용 및 유동소음 모사
Application of the Internal Degree of Freedom to 3D FDLB Model and Simulations of Aero-Acoustic
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Abstract
A 3-dimensional FDLB model with additional internal degree of freedom is applied for diatomic gases such as air, in which an additional distribution function is introduced. Direct simulations of aero-acoustic by using the applied model and scheme are presented. Speed of sound is correctly recovered. As typical examples, the Aeolian tone emitted by a circular column is successfully simulated even very low Mach number flow. Acoustic pressure fluctuations with the same frequency of the Karman vortex street compared with the pressure fluctuation around a circular column is captured. Full three-dimensional acoustic wave past a compact block like pentagon, furthermore, is also emitted in direction as dipole like sound.
참고문헌 (18)
- "Optimizing Lattice Boltzmann Simulations for Unsteady Flows", 35, pp.227~240 (2006)
- "A Model for Collision Processes in Gases I. Small Amplitude Process in Chanrged and Neutral One-Component System", 94, pp.~3
- "Lattice Boltzmann BGK Simulation of Nonlinear Sound Waves: the Development of a Shock Front", 33, pp.3917~3928 (2000)
- "Physical Symmetry and Lattice Symmetry in the Lattice Boltzmann Method", 55, pp.R21~R24 (1997)
- "Lattice Boltzmann Method for Fluid Flows", 30, pp.329~364 (1998)
- "Explicit Finite-Difference Lattice Boltzmann Method for Curvilinear Coordinates", 67 (2003)
- "Sound Generation by a Two-Dimensional Circular Cylinder in a Uniform Flow", 471, pp.285~314 (2002)
- "On Implementation of the Finite Difference Lattice Boltzmann Method with Internal Degree of Freedom to Edgetone", 19(11), pp.2032~2039 (2005)
- "An Application of the Finite Difference-based Lattice Boltzmann model to Simulating Flow-induced Noise" (2006), in press
- "Numerical Prediction of Acoustic Sounds Occurring by the Flow Around a Circular Cylinder", 17(8), pp.1219~1225 (2003)
- "On Sound Generated Aerodynamically. I.General theory", 221, pp.~107
- "Use of the Boltzmann Equation to Simulate Lattice-Gas Automata", 61, pp.2332~2335 (1988)
- "On the Finite Difference-based Lattice Boltzmann Method in Curvilinear Coordinates", 143, pp.426~448 (1998)
- "The Theory of Sound Reprinted by Dover", 2, pp.412~414, MacMillan
- "Finite Difference-based Lattice Boltzmann Simulation of Natural Convection Heat Transfer in a Horizontal Concentric Annulus", 35, pp.1~15 (2006)
- "On One Particular Way of Tone Generation", 5, pp.216~251 (1878)
- "Proposal of Lattice BGK Model with Internal Degrees of Freedom in Lattice Boltzmann Method", 65(629), pp.92~99 (1999)
- "Journal of Statistical Physics", 45, pp.471~526 (1986)