Experimental Facility for Measuring
نویسندگان
چکیده
A full-size aircraft engine-duct mock-up experimental apparatus has been built to collect cavity radar cross section (RCS) data on aircraft engine inlets. The engine-duct structure is made up of a cylindrical duct with a single fan stage consisting of 30 generic straight fan blades. Experimental results indicate that the azimuthal RCS patterns from the engine-duct are quite complex. Numerical computations using a commercial RCS prediction code are compared with the measured data. The comparisons between measured and computed data have highlighted some of the problems and difficulties currently encountered in cavity RCS modelling. These results indicate that engine-duct RCS modelling is a very challenging problem.
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تاریخ انتشار 2004