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Streamlines around the Global Hawk UAV
Pusher UAV's Formation Flight
External aerodynamics analysis on an Airbus A380
STAR-CCM+ is unrivaled in its ability to quickly and efficiently tackle complex geometries. Shown here are surface pressures on an Airbus A380 with flaps deployed and landing gear modeled. Streamlines visualize the flow pattern in the wake of the aircraft.
Overset mesh simulation for store separation: the flow field and 6-Degree-of-Freedom motion of the store can be simulated by moving the grid attached to store while the background grid remains stationary, making the accurate simulation of relative motion between objects a straightforward task.
The overset mesh capability allows for a user to easily accommodate complex geometries without needing to worry about the details of cell activation/deactivation or interpolation. Depicted is a plane section showing the outline of an overset mesh on a missile from a Eurofighter.
In this report, the performance of the Standard Cirrus glider is simulated using STAR-CCM+. To calculate the important transitional boundary layer flow, the γ-Reθ transition model is used. The study is performed to test the quality of the transition model and to create a validated reference model of the glider’s performance in steady level flight. The validated model will in future studies be used to improve the performance and handling quality of the glider and serve as a reference model for other simulation tools.
One of the greatest challenges facing the aerospace industry is improving the aeroacoustic noise generation of their products to meet today’s more and more stringent noise pollution standards. As flow-induced noise makes a significant contribution to the overall output decibels, it seems essential to understand how to optimize the aircraft design in order to minimize the flow-induced noise without impairing the general performance of the air-vehicle.
This article details results from the numerical simulations on the NASA Trapezoidal Wing geometry, focusing on the high lift prediction using the CD-adapco solver STAR-CCM+. Computations and validation were based on the guidelines and experimental data provided for the 1st AIAA High Lift Prediction Workshop (HiLiftPW-1) to assess the numerical prediction capability of STAR-CCM+ for high lift configurations. STAR -CCM+’s unique automated polyhedral meshing capability was utilized for these simulations, along with predictive transition modeling. Simulations were run for ‘Configuration 1’ from the workshop with the flap at a 25 degree deflection. Force coefficients of lift, drag and pitching moment were computed from STAR -CCM+ for varying angles of attack from 6° to 37° and compared to experimental results.
STAR-CCM+ is developed to be accurate, efficient, easy to use, and, thanks to its rapid release cycle of three major releases each year, to grow with the needs of our users in mind. We are always improving the technology and capabilities to better solve the problems facing the aerospace industry. This article highlights a few recent and upcoming capabilities.