设置涡流黏度信息，数据类型仅支持常量值

{
    "modelFile": "C:\\Work\\DevCoreAzure\\TestData\\Service\\MIKE21FM\\Structure\\Sim1_Weir.m21fm",
    "eddyViscosityType": 3,
    "dataFormat": 0,
    "constant": 0.28222
}