Numerical Analysis of Convection / Transpiration Cooling | Zendy

David E. Glass | Zendy; Arthur D. Dilley | Zendy; H. N. Kelly | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Numerical Analysis of Convection / Transpiration Cooling

Author(s) -

David E. Glass,

Arthur D. Dilley,

H. N. Kelly

Publication year - 2001

Publication title -

journal of spacecraft and rockets

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.758

H-Index - 79

eISSN - 1533-6794

pISSN - 0022-4650

DOI - 10.2514/2.3666

Subject(s) - spacecraft , aerospace engineering , missile , space (punctuation) , spacecraft design , convection , space vehicle , systems engineering , space exploration , space technology , mechanical engineering , computer science , environmental science , engineering , meteorology , physics , operating system

An innovative concept utilizing the natural porosity of refractory-composite materials and hydrogen coolant to provide CONvective and TRANspiration (CONTRAN) cooling and oxidation protection has been numerically studied for surfaces exposed to a high heat flux, high temperature environment such as hypersonic vehicle engine combustor walls. A boundary layer code and a porous media finite difference code were utilized to analyze the effect of convection and transpiration cooling on surface heat flux and temperature. The boundary layer code determined that transpiration flow is able to provide blocking of the surface heat flux only if it is above a minimum level due to heat addition from combustion of the hydrogen transpirant. The porous media analysis indicated that cooling of the surface is attained with coolant flow rates that are in the same range as those required for blocking, indicating that a coupled analysis would be beneficial.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research