Comparative analysis of the application of aerodynamics impedance algorithm in high and low terrain

Linlin Xing, Peixin Gao

COMPUTER MODELLING & NEW TECHNOLOGIE S 2013 17(5D) 79-82

Flying College, Binzhou University, Binzhou 256603, Shandong, China

Aerodynamic impedance is one of the most important factors influencing surface momentum, energy and water exchange. Currently, there are many algorithms about aerodynamic impedance estimation, but most of the researches are based on a certain region or specific underlying surface, while there are few researches about the uneven terrain momentum of different levels of terrain. In this paper, aerodynamic impedance is estimated and analyzed from the perspective of different classic underlying surfaces. Based on the field observation experimental materials of a certain region’s uneven terrain of different levels, and the impedance difference under the condition of different levels of terrain is compared and analyzed so as to propose the aerodynamic impedance method suitable for different kinds of underlying surfaces in this region, and improve the estimation precision of aerodynamic impedance.