One ofthemainchallengesforthehypersonicvehicleisitsthermalprotection,morespecifically,the
cooling ofitsleadingedge.Toinvestigatethefeasibilityofaplateletheat-pipe-cooledleadingedge
structure, thermal/stressdistributionsforsteady-state flight conditionsarecalculatednumerically.Stu-
dies arecarriedonforIN718/Na,C-103/NaandT-111/Licompatiblematerialcombinationsofheatpipe
under nominaloperationsandacentralheatpipefailurecases,andtheinfluence ofwallthicknessonthe
design robustnessisalsoinvestigated.Andtheheattransferlimits(thesoniclimit,thecapillarylimitand
the boilinglimit)arealsocomputedtochecktheoperationofplateletheatpipes.Theresultsindicate
that, witha15mmleadingedgeradiusandawallthicknessof0.5mm,C-103/NaandT-111/Licombi-
nations ofheatpipeiscapableofwithstandingbothnominalandfailureconditionsforMach8andMach
10 flight respectively
One ofthemainchallengesforthehypersonicvehicleisitsthermalprotection,morespecifically,thecooling ofitsleadingedge.Toinvestigatethefeasibilityofaplateletheat-pipe-cooledleadingedgestructure, thermal/stressdistributionsforsteady-state flight conditionsarecalculatednumerically.Stu-dies arecarriedonforIN718/Na,C-103/NaandT-111/Licompatiblematerialcombinationsofheatpipeunder nominaloperationsandacentralheatpipefailurecases,andtheinfluence ofwallthicknessonthedesign robustnessisalsoinvestigated.Andtheheattransferlimits(thesoniclimit,thecapillarylimitandthe boilinglimit)arealsocomputedtochecktheoperationofplateletheatpipes.Theresultsindicatethat, witha15mmleadingedgeradiusandawallthicknessof0.5mm,C-103/NaandT-111/Licombi-nations ofheatpipeiscapableofwithstandingbothnominalandfailureconditionsforMach8andMach10 flight respectively
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