The effects of insulation thickness on heat transfer for thermal protection system

The effects of insulation thickness are investigated with potential application in thermal protection system of hypersonic and re-entry vehicles. The traditional thermal protection system is modeled by the finite difference approach. Four different thicknesses of insulations´ TPS are studied. The numerical calculation results show that structure temperature decreases as the insulation thickness increases as well as temperature difference increases, however, this effect weakens as the insulation thickness increased.