CAJ | 학술논문

用光滑粒子法模拟几种情况的溃坝流动,对坝外无水和有水的情况进行二维模拟,对坝外有立柱的情况进行三维模拟.流动控制方程采用雷诺平均方程模拟溃坝流动的湍流效应,采用混合长度形式的涡粘模式对控制方程进行封闭,推导其相应的光滑粒子形式的方程.模拟结果表明,数值模拟的流动特征与实验结果符合得非常好,说明发展的光滑粒子法有效.
용광활입자법모의궤충정황적궤패류동,대패외무수화유수적정황진행이유모의,대패외유립주적정황진행삼유모의.류동공제방정채용뢰낙평균방정모의궤패류동적단류효응,채용혼합장도형식적와점모식대공제방정진행봉폐,추도기상응적광활입자형식적방정.모의결과표명,수치모의적류동특정여실험결과부합득비상호,설명발전적광활입자법유효.
A smoothed particle hydrodynamics (SPH) method for turbulence is used to simulate dam-break flows. Several 2D and 3D dam-break flows are simulated. For turbulent effects, Reynolds-averaged Navier-Stokes equation together with eddy viscosity assumption are used. SPH results are in good agreement with reported experimental results.