WIT Press


An Approximate Method To Evaluate The Surface Catalycity In High Enthalpy Flows

Price

Free (open access)

Paper DOI

10.2495/CMEM970581

Volume

17

Pages

10

Published

1997

Size

863 kb

Author(s)

G. Zuppardi & G. Verde

Abstract

An integrated numerical/experimental method is proposed to evaluate the surface catalycity. The method is approximated and relies in matching the measured heat flux with the computed one. It is iterative; the iteration parameter is the atom mass fraction at the surface. This is a boundary condition needed to integrate, numerically, the system of boundary layer differential equations. The atom mass fraction at the surface, fulfilling the match, is used to evaluate the surface catalycity. This is computed as the ratio of the atom mass fraction at the surface to the atom mass fraction at the boundary layer edge. The method has been applied to the evaluation of the catalycity of a hemisphere calorimeter in nitrogen flo

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