Reynolds-Averaged Navier-Stokes Simulations of Helicopter Slung Loads

摘要

This paper summarizes a body of work that focuses upon the aerodynamics of slung load containers. Two different computational fluid dynamics Reynolds- Averaged Navier-Stokes codes, OVERFLOW-D and Star- CD, were used to study flows over bluff bodies representative of bluff bodies. These studies include twodimensional flows across square shapes and cross-section of the Container Express (CONEX), and of threedimensional flows across cubes and of the CONEX. These highly unsteady flow fields were performed for static bodies, bodies undergoing spin, and bodies undergoing forced oscillations. The computations demonstrate a capability in predicting both static and moving body computations using these two different CFD methods. The computed results highlight some of the requirements for obtaining useful solutions and also give some insight into the complicated aerodynamics associated with theseconfigurations.