Pneumatic prediction method with combination of CFD numerical simulation and wind tunnel test

The invention provides a pneumatic prediction method with the combination of CFD numerical simulation and a wind tunnel test. A data fusion method is employed, firstly the result of the CFD numerical simulation is used to establish an aircraft aerodynamic performance model, wind tunnel test data is used to modify the aircraft aerodynamic performance model, the modified aerodynamic performance model is used to estimate all samples, and finally a group of data with correct trend and the numerical accuracy of a wind tunnel amount level is obtained. According to the prediction method, while the wind tunnel data accuracy of the prediction result is ensured, the overall pneumatic prediction cost of an aircraft in the development process is reduced significantly, and the requirement of the aircraft pneumatic performance prediction is satisfied to the maximum extent.