Hypervelocity Heat-Transfer Measurements in an Expansion Tube

机译：膨胀管中的超高速传热测量

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A series of experiments has been conducted in the NASA HYPULSE Expansion Tube, in both CO2 and air test gases, in order to obtain data for comparison with computational results and to assess the capability for performing hypervelocity heat-transfer studies in this facility. Heat-transfer measurements were made in both test gases on 70 deg sphere-cone models and on hemisphere models of various radii. HYPULSE freestream flow conditions in these test gases were found to be repeatable to within plus or minus 3-10%, and aerothermodynamic test times of 150 microsec in CO2 and 125 microsec in air were identified. Heat-transfer measurement uncertainty was estimated to be plus or minus 10-15%. Comparisons were made with computational results from the non-equilibrium Navier-Stokes solver NEQ2D.

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Hollis, B. R. ; Perkins, J. N.;
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年度 2004
页码 1-16
总页数 16
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Hypervelocity flow; Computational fluid dynamics; Helium; Expansion tubes; Laminar flow; Perturbation; Shock loads; Shock tubes; Simulation; Test facilities; Unsteady flow; Heat transfer; Measurements;

机译：超高速流动;计算流体动力学;氦气;膨胀管;层流;微扰;冲击载荷;冲击管;模拟;试验设施;非定常流动;传热;测量;

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机译：膨胀管中的超高速传热测量

Hypervelocity Heat-Transfer Measurements in an Expansion Tube

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