A modular procedure is presented to simulate moving control surfaces within an overset grid environment using the Navier–Stokes equations. Gaps are modeled by locally shearing the wing grids instead of using separate grids to model gaps. Grid movements for control surfaces are defined through a separate module, which is driven by an external grid generation tool. Results are demonstrated for a wing with a part-span control surface. Grids for the test case are determined from detailed grid sensitivity studies based on both nonoscillating and oscillating cases. Steady and, for the first time, unsteady pressures from overset grid computations are validated with wind tunnel data. This paper addresses the current needs of high-fidelity flow modeling to design advanced active-controls.
Modeling of Oscillating Control Surfaces Using Overset-Grid-Based Navier–Stokes Equations Solver
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received January 15, 2016; final manuscript received September 28, 2016; published online January 10, 2017. Assoc. Editor: Ming Xin.
This material is declared a work of the U.S. Government and is not subject to copyright protection in the United States. Approved for public release; distribution is unlimited.
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Guruswamy, G. P. (January 10, 2017). "Modeling of Oscillating Control Surfaces Using Overset-Grid-Based Navier–Stokes Equations Solver." ASME. J. Dyn. Sys., Meas., Control. March 2017; 139(3): 031005. https://doi.org/10.1115/1.4034945
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