کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
651733 1457428 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and numerical simulation, by an arc-jet facility, of hypersonic flow in Titan’s atmosphere
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Experimental and numerical simulation, by an arc-jet facility, of hypersonic flow in Titan’s atmosphere
چکیده انگلیسی

This paper summarizes experimental and numerical results on high enthalpy hypersonic flows in nitrogen–methane mixtures. The experimental results have been obtained by the Small Planetary Entry Simulator (SPES), an arc-jet hypersonic wind tunnel in operation at the University of Naples “Federico II”. The facility has been used in the past to simulate entry conditions into Earth’s and Mars’ atmosphere and has recently been upgraded to simulate entry into Titan’s atmosphere. Numerical simulations of the flow field in the facility, for a nitrogen–methane mixture in chemical nonequilibrium have been performed. The chemical species and the heat flux distributions on a calorimeter located in the arc-jet test chamber have been computed.The ability to perform a numerical rebuilding of the facility, by comparing numerical and experimental results has been investigated. The paper also highlights the importance of the wall catalyticity for the characterization of the thermal response of materials in high enthalpy flow.


► Arc-jet hypersonic wind tunnel.
► Aerothermodynamic heating in multi-reacting mixtures formed by nitrogen and methane.
► Numerical rebuilding of experimental tests.
► Numerical models for Titan atmospheric entry.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Thermal and Fluid Science - Volume 48, July 2013, Pages 97–101
نویسندگان
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