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Supersonic minimum length nozzle design for dense gases (1993)

Argrow, Brian M. ; Aldo, Andrew C.

In: CASI

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Publication Date: 2013-08-31

Description: Recently, dense gases have been investigated for many engineering applications such as for turbomachinery and wind tunnels. Supersonic nozzle design for these gases is complicated by their nonclassical behavior in the transonic flow regime. In this paper a method of characteristics (MOC) is developed for two-dimensional (planar) and, primarily, axisymmetric flow of a van der Waals gas. Using a straight aortic line assumption, a centered expansion is used to generate an inviscid wall contour of minimum length. The van der Waals results are compared to previous perfect gas results to show the real gas effects on the flow properties and inviscid wall contours.

Keywords: AERODYNAMICS

Type: NASA. Lewis Research Center, The Fifth Annual Thermal and Fluids Analysis Workshop; p 329-341

Format: application/pdf

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