Ablative systems modelling

[dug20]

List of methods for modelling ablative cooling systems.

[dug20]

https://mountainscholar.org/bitstream/handle/10217/212046/Browne_colostate_0053N_16196.pdf?sequence=1&isAllowed=y

Page 43 of the above source describes a method, using data from Table 2.1 (pg15). I believe the data in the table has to be scaled for different pressures.

I think they used the following thermal resistances:

• One due to convection from exhaust gas (same as for regen cooling I think?)
• Second due to the thermal conductivity of the solid ablator, using thermal conductivities in Table 2.1 (pg 15)
• Third due to engine wall (usually metal, e.g. copper).
• Some kind of conduction away from the wall - possibly black body radiation?

I think the modelled ablator erosion using:

• Table 2.1 on page 15
• Equation (5.1) on page 46

Other notes:

• May be good to model the system as time dependent? (i.e. do a transient analysis)

[dug20]

http://www.diva-portal.org/smash/get/diva2:878790/FULLTEXT01.pdf

Discussing some experiments you can do to find ablator properties.

[dug20]

Add ability for combined ablative and regen.

This requires the option to have regen systems over limited regions, and ablative systems over limited regions