Notice of RetractionDrag force characteristic of a typical dual-mode scramjet combustor

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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The two-dimensional dimensional coupled implicit NS equations, the standard k-ε turbulent model and the Finite-Rate/Eddy-Dissipation reaction model were used to numerical simulate the flowfiled of the dual-mode scramjet combustor, including the engine ignited condition and the cold flow condition. At the same time, the influence of the injection modes, namely transversely and horizontally, on the drag force characteristic of the combustor was investigated. The obtained results show that the higher injection pressure can promote the mixing process between the fuel and the air stream, and the cases with the higher injection pressure can provide larger thrust. If the hydrogen is injected into the core flow transversely, it can penetrate deeper, and it can also generate larger thrust. So the two methods can be used to reduce the drag force of the combustor in the experimental test.