Loading...
Please wait, while we are loading the content...
Similar Documents
A numerical analysis of the transient response of an ablation system including effects of thermal nonequilibrium, mass transfer and chemical kinetics. ph.d thesis - virginia polytechnic inst. and state univ.
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Clark, R. K. |
| Copyright Year | 1972 |
| Description | The differential equations governing the transient response of a one-dimensional ablative thermal protection system undergoing stagnation ablation are derived. These equations are for thermal nonequilibrium effects between the pyrolysis gases and the char layer and kinetically controlled chemical reactions and mass transfer between the pyrolysis gases and the char layer. The boundary conditions are written for the particular case of stagnation heating with surface removal by oxidation or sublimation and pyrolysis of the uncharred layer occurring in a plane. The governing equations and boundary conditions are solved numerically using the modified implicit method (Crank-Nicolson method). Numerical results are compared with exact solutions for a number of simplified cases. The comparison is favorable in each instance. |
| File Size | 5183947 |
| Page Count | 268 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730002381 |
| Archival Resource Key | ark:/13960/t3227p66f |
| Language | English |
| Publisher Date | 1972-05-01 |
| Access Restriction | Open |
| Subject Keyword | Chemistry Transient Response Nonequilibrium Flow Chemical Analysis Differential Equations Kinetic Energy Ablation Mass Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Thesis |
