A fluent-based method for automatic acquisition of fan wake

Abstract

The invention belongs to the related technical field of wind turbine wake calculation, and discloses a Fluent-based method for automatically obtaining the wind turbine wake. The wind speed ratio and the radius of the wind rotor are respectively input into the selected three different actuation models, and the aerodynamic load of the fan is calculated using the C++ self-editing module (2) The C++ self-editing module exports the Fluent user-defined function file and the Fluent log file; (3 ) After the Fluent log file completes the basic settings of the Fluent solver, a batch processing module is used to automatically open the Fluent solver and import the Fluent user-defined function file and the Fluent log file into the Fluent solver, and then the The Fluent solver completes the automated simulation of wind turbine wakes. The invention has good applicability and high flexibility.

Description

technical field [0001] The invention belongs to the related technical field of fan wake calculation, and more specifically relates to a Fluent-based method for automatically obtaining fan wake. Background technique [0002] In recent years, wind power has developed rapidly and has become a research hotspot in the field of new energy. However, the wake deceleration and turbulent effects generated by the upstream unit will reduce the power generation efficiency of the downstream unit, increase the load, and seriously affect the operation performance of the downstream unit. Therefore, it is very necessary to carry out numerical simulation of the fan wake. [0003] At present, those skilled in the art have done some research. For example, due to the complexity of the airfoil of the fan, the use of a full geometric model for full numerical simulation makes the body-fitted mesh division very difficult and the number of meshes is huge. The usual method is to use the actuation Howe...

AI Technical Summary

Problems solved by technology

However, the wake deceleration and turbulent effects produced by the upstream unit will reduce the power generation efficiency of the downstream unit, increase the load, and seriously affect the operation performance of the downstream unit. Therefore, it is very necessary to carry out numerical simulation of the fan wake.

[0003] At present, those skilled in the art have done some research. For example, due to the complexity of the airfoil of the fan, the use of a full geometric model for full numerical simulation makes the body-fitted mesh division very difficult and the number of meshes is huge. The usual method is to use the actuation However, the actuation method requires high professional knowledge of the simulator, and it needs to be proficient in computational fluid dynamics and fan aerodynamics to complete it.

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