Accession Number:

AD0417749

Title:

The Effect of Variable Lewis Number on Heat Transfer in a Dissociating Gas.

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

• Enkenhus,K.R.

Report Date:

1963-07-01

Pagination or Media Count:

15.0

Abstract:

A comparison is made of the variable and constant Lewis number solutions for the Couette flow of a dissociating gas composed of a binary mixture of atoms and molecules. The effect of Lewis number on heat transfer, skin friction and flow proper ties is determined. Calculations are presented for oxygen for the cases of equilibrium flow and frozen flow with a fully catalytic wall. For both cases, the constant Lewis number Le which gives the same heat transfer rate as the variable Lewis number solution is determined. The results indicate that Le is a simple function of the wall and free stream Lewis numbers. It is only weakly dependent on free stream velocity and temperature. Author

Descriptors:

• *HEAT
• FRICTION
• FLUID FLOW
• OXYGEN
• COUETTE FLOW
• DIFFUSION

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE