Centrifugal fan one-dimensional center line unit of CAE integrated platform

The invention discloses a centrifugal fan one-dimensional center line unit of a CAE integrated platform. The centrifugal fan one-dimensional center line unit comprises a design module, an analysis module and a multi-point analysis module; the design module is used foradopting one-button operation to carry out preliminary forming design on all parts in the centrifugal fan flow channel according tothe designing working conditions input by a user to generate a basic flow channel one-dimensional geometric model and predicting and calculating performance parameters; the analysis module is used forinputting an existing centrifugal fan model by a user for performance prediction, and predicting flow channel thermodynamic conditions, a speed triangle and overall unit performance according to a default or user-customized experience model and a one-dimensional centerline analysis. Compared with the prior art, the embedded centrifugal ventilator design model can be designed in a one-key mode, and a user can also set the