A numerical method for calculating gas flows in channels and nozzles in the direct, inverse and combined formulations

Osipov, I. L.; Shipilin, A. V.; Shulishnina, N. P.

doi:10.1016/0041-5553(87)90066-8

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2009

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“…A number of modifications have been proposed to deal with this issue (Barron et al 1993). The SFC approach has found applications in a wide variety of fields including two-dimensional (2D) channel design (Martin 1971), nozzle inverse flow design problem (Osipov et al 1987) and inverse design of aerodynamic shapes (Barron 1990), to name a few. However, in literature SFC has been limited to second-order numerical schemes.…”

Section: Introductionmentioning

confidence: 99%

Stream function–potential function coordinates for aeroacoustics and unsteady aerodynamics

Gopalan

Povitsky

2009

International Journal of Computational Fluid Dynamics

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Stream function as a coordinate approach' (SFC) combined with compact high-order finite difference schemes has been developed and applied to aeroacoustics and unsteady aerodynamics problems. Straightforward implementation of SFC creates coarse grids at the vicinity of stagnation points that smears high-order numerical computations. Grid clustering is employed to resolve coarse grid near stagnations points. The agreement between numerical results and particle image velocimetry (PIV) measurements for flapping airfoil shows the robustness of the current approach for performing high-order computations.

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Section: Introductionmentioning

confidence: 99%