CAJ | 학술논문

基于三维、定常、不可压缩、粘性流体的RANS方程和两方程模型，运用计算流体力学软件Fluent，对在列车风致脉动力与自然风荷载联合作用下的高速铁路声屏障进行数值模拟，分析声屏障表面所受复合载荷的叠加方式，依据仿真结果拟合出的复合载荷的理论计算公式具有较高的可靠性。
기우삼유、정상、불가압축、점성류체적RANS방정화량방정모형，운용계산류체역학연건Fluent，대재열차풍치맥동력여자연풍하재연합작용하적고속철로성병장진행수치모의，분석성병장표면소수복합재하적첩가방식，의거방진결과의합출적복합재하적이론계산공식구유교고적가고성。
Based on the 3D,constant,incompressible and viscous fluid RANS equations and κ-ε two equations model,this paper runs a numerical simulation on the noise barrier of high-speed railway under the action of train-induced impulsive wind pressure and natural wind load by the CFD software Fluent.It analyses the compound mode of composite loads that the noise barrier bears,based on the results,it fits the theoretical formula of the composite loads which has higher reliability.