Publication Date:
2019-08-17
Description:
A static test of an annular nozzle with a concave central base, producing a jet in which tangents to the jet streamlines at the exit converged toward a region on the axis of symmetry downstream of the exit, has indicated good thrust performance. A value of nozzle-flow coefficient only slightly less than unity indicates the internal loss to be small. Pressures on the concave central base are relatively large and positive, and a predictable portion of the total thrust of the jet is exerted on the central base.
Keywords:
Aircraft Propulsion and Power
Type:
NASA-TN-D-418
,
L-851
Format:
application/pdf
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