半导体少长针消雷器风荷载数值研究

Numerical Research of the Wind Loads on a Semiconductor Lightning Current Duration Extender

使用FLUENT软件求解定常不可压缩流动的RANS方程和标准k-ε湍流模型,数值模拟风场中绕半导体少长针消雷器圆柱杆件的复杂流动,研究风向角对杆件风荷载的影响.计算结果给出了不同风向角下消雷器各杆件的气动力系数,风向角β=0°时各杆件纵截面和横截面上的压力系数分布,不同风向角下流场截面内的截面流线分布和等压线分布.

The complex flow around the circular cylinder rods of a semiconductor lightning current duration extender （SLE） is simulated numerically to investigate the effect of wind angles on the wind loads of the rods. The steady incompressible RANS equations and the standard k - epsilon turbulent model are solved utilizing FLUENT software. The coefficients of the aerodynamic forces of the rods at different wind angles, the pressure distributions of the longitudinal sections and the cross sections of the rods at wind angle β =0°, and the streamline distributions and the pressure distributions of the flow field sections at different wind angles are presented in detail.