工质无粘理想气体，初始时刻在x=0.5m，6m≤y≤11m处存在5.09马赫的激波，向右运动至密度ρ = 1.4kg/m3, 压强p = 1Pa的流场，激波速度通过朗金雨贡纽关系式得出。

        xy平面划分为均匀网格，单元网格长度50mm，z方向一层网格，总计网格量5.9万。

图2：网格

求解配置

• 采用Dimaxer四代求解器进行5阶精度求解，5阶精度每个六面体单元对应125个自由度，5.92万网格对应740万自由度

• 计算总时间为2.3s，可与参考文献结果进行对比

• 部分配置json文件如下

"control": {
        "case_name": "back-step",
        "n_bundles": 8,
        "max_side_group_size": 2000,
        "solver_signature": "ns-ideal-cr-k4",
        "start_time": 0.0,
        "end_time": 2.3,
        "monitor_time_interval": 0.0023,
        "solution_output_time_interval": 0.023,
        "hardware_device_id": 6
    },
    "mesh_info": {
        "mesh_file_name": "geomAndMesh/backstep.dmh"
    },
    "boundary_info": {
        "far_field_conditions": [
            {
                "bc_name": "inlet",
                "bc_id_list": [
                    6
                ],
                "alpha": [
                    1.0,
                    0.0,
                    0.0
                ],
                "mach_inf": 1.6680471036740914,
                "pres_inf": 30.05945,
                "temp_inf": 4.269121233389778
            },
            {
                "bc_name": "outlet",
                "bc_id_list": [
                    10
                ],
                "alpha": [
                    1.0,
                    0.0,
                    0.0
                ],
                "mach_inf": 0.0,
                "pres_inf": 1.0,
                "temp_inf": 0.7142857142857143
            }
        ],
        "wall_conditions": [],
        "symmetry_conditions": [
            {
                "bc_name": "sym",
                "bc_id_list": [
                    5,
                    7,
                    8,
                    9
                ],
                "velocity": [
                    0.0,
                    0.0,
                    0.0
                ]
            }
        ]
    }