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A thermal effect model is presented in this paper,with the background of ground-based laser irradiating moving and rotating target in the air.There are many models established to describe the thermal effect of laser irradiating stationary target.However,for laser irradiating moving and rotating target,the model is needed to consider the influences of varying irradiating parameters,tangential airflow on the surface of target,and the energy loss of laser beam propagation in atmosphere.Firstly,the encounter scene of laser irradiating target is assumed,and the parameters of laser and target are given.In the encounter scene,the CW laser,which is loaded on the infinite earth plane,irradiates the cylindrical target in the state of uniform motion in a straight line and uniform rotation around its axis.Secondly,the calculation model of irradiating parameters is derived.The irradiating parameters,which include location of irradiating center point,irradiating area and power density distribution,vary as the targets moving and rotating.And the influences of targets moving and rotating on irradiating parameters are analyzed.Thirdly,based on the encounter scene and calculation model of irradiating parameters,the thermal effect model is established.The thermal effect of laser irradiating causes the temperature rising and thermal ablation of the target.Therefore,the thermal effect model includes heat conduction model and ablation model.The heat conduction model is established through heat conduction equation and boundary conditions in 3D cylindrical coordinates.The ablation model is established considering heat absorption during the solid-liquid phase change process.By the heat conduction model and ablation model,the 3D temperature field and ablation results of the target could be calculate.Finally,the thermal effect is calculated by assuming the parameters in encounter scene of laser irradiating target.As shown in the example,the thermal effect model can minutely describe the temperature field and ablation results of moving and rotating target irradiated by laser.