Journal of Thermophysics and Heat Transfer · 2019 · 35 citations · 21 references
EngineeringComputational EngineeringMaterials EngineeringComputational Heat TransferHeat TransferThermal AnalysisAblative MaterialsHeat Transfer AnalysisHeat Transfer ModelingThermal Expansion AnalysisThermal Protection MaterialsThermomechanical AnalysisAblative Thermal ProtectionAblative Thermal Protection SystemsThermal DeformationThermal ExpansionThermal Expansion ModelingThermal ProtectionThermal StrainThermal-mechanical Coupling
A mesh moving scheme is developed and tested in a finite-volume thermo-mechanical solver to investigate the effects of geometry deformation on thermal protection system materials. Verification cases are conducted to test the implementation of the moving mesh scheme. An iso-Q sample is used to demonstrate the swelling of thermal protection system materials on a realistic geometry. The results show that, under certain conditions, thermal expansion should not be ignored. The resulting local thermal strain reaches up to 30% and suggests that strain effects on the material properties should be considered. Moreover, the geometric expansion may also result in changes in the surrounding flow field, which may ultimately change the incoming heat flux and many boundary conditions.
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Strain effects on the thermal conductivity of nanostructures
Xiaobo Li, Kurt Maute, Martin L. Dunn et al. · Physical Review B · 2010 · 453 citations