全国典型沥青路面结构夏季日温度场变化仿真数据
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首先采用计算流体动力学计算软件Cradle CFD建立道路结构温度场计算模型。通过引入ASHRAE太阳辐射模型、幂律梯度风速模型以及混合料多相热物理参数理论作为边界条件以及材料输入参数,建立沥青路面瞬态温度场预估模型,可预测沥青路面不同深度和水平位置瞬态温度分布,同时与北京足尺环道的观测数据进行对比验证,以验证模型的准确性。
First, a computational model for the temperature field of road structures was established using the computational fluid dynamics software Cradle CFD. By introducing the ASHRAE solar radiation model, power-law gradient wind speed model, and multiphase thermophysical parameter theory of mixtures as boundary conditions and material input parameters, a transient temperature field prediction model for asphalt pavements was developed. This model can predict the transient temperature distribution of asphalt pavements at different depths and horizontal positions. Meanwhile, the accuracy of the model was verified by comparing with the observation data from the full-scale test track in Beijing.




