主动流动控制技术的初步数值研究

利用亚跨超CFD软件平台2.0版本(trip2.0)对几种常见的流动主动控制技术进行了数值模拟,对包括进气道和襟翼等几个算例的流场进行了定常和非定常求解,获得了合理的计算结果,为今后的进一步深入研究打下了良好基础.

The primary numerical research of active control technology in flow

With the help of TRIP2.0 SOLVER in CFD platform,three kinds of normal flow control technology,the control method using steady blowing and suction,the boundary layer trips and the zero-mass jet have been simulated.In this paper,several samples,including inlet,flap and the hump model's 2D or 3D flowfield,have been computed with time-independent and time-dependent methods.In the CFD codes of TRIP2.0,the governing equations are the RANS equations,and the turbulence model is Spalart-Allmaras turbulence model(one equation model).For time-dependent computation,the dual-time method is exerted for higher computational efficiency.Otherwise,the overlap grid technology is used in inlet's computational status to make the grid generation more convenient. It is shown by the results that computational flowfield is reasonable,the computational methods is correct and efficient,and the work in this paper establishes a good base for the future deep research.