Numerical Investigation on Aero-Thermodynamic Characteristics of Wedge Shaped Nose Cone of Near Space Supersonic Flight

2014 ◽  
Vol 541-542 ◽  
pp. 608-612 ◽  
Author(s):  
Jia Lin ◽  
Lian Jin Zhao ◽  
Jian Hua Wang
Keyword(s):  
Wind Tunnel ◽  
Numerical Investigation ◽  
Thermodynamic Characteristics ◽  
Real Space ◽  
Supersonic Flight ◽  
High Enthalpy ◽  
Near Space ◽  
Cone Model ◽  
Nose Cone ◽  
Numerical Strategy

A numerical investigation on the space (0-46km) aero-thermodynamic characteristics of a nose cone model was performed using commercial software STAR-CCM++. Turbulence model and numerical calculation strategy was validated by the experimental phenomenon captured in a ground high-enthalpy wind tunnel and empirical formula calculation. The purpose of this paper is to discuss the distinctions between the experiment performed in ground high-enthalpy wind tunnel environment and real space flight using the validated numerical strategy, as well as the aero-thermodynamic characteristics of the nose cone model in different flight altitudes and Mach numbers, which will give a guidance to active cooling of spacecraft in real supersonic flight.

Generation and Characterization of High Enthalpy CO2 Flow by Laser Driven Plasma Wind Tunnel

2013 ◽  
Author(s):  
Makoto Matsui ◽  
Shingo Yoneda ◽  
Satoshi Nomura ◽  
Yoshiki Yamagiwa ◽  
Kimiya Komurasaki ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
High Enthalpy ◽  
Co2 Flow

scholarly journals Numerical Investigation of Wind-Tunnel Model Deformations Caused by the Twin-Sting Support System

2010 ◽  
Vol 47 (2) ◽  
pp. 708-714 ◽  
Author(s):  
Roberto Flores ◽  
Enrique Ortega ◽  
Eugenio Oñate
Keyword(s):  
Wind Tunnel ◽  
Numerical Investigation ◽  
Support System ◽  
Wind Tunnel Model ◽  
Tunnel Model

Wind Tunnel Experiments and Numerical Investigation of the Aerodynamics of an Inflated Wing

2022 ◽  
Author(s):  
Siddhant P. Desai ◽  
Joseph A. Schetz ◽  
Azwan Aris ◽  
Shardul S. Panwar ◽  
Rikin Gupta
Keyword(s):  
Wind Tunnel ◽  
Numerical Investigation ◽  
Wind Tunnel Experiments

scholarly journals On the sodium enhancement in spectra of slow meteors and the origin of Na-rich meteoroids

2020 ◽  
Author(s):  
Pavol Matlovič ◽  
Juraj Tóth ◽  
Leonard Kornoš ◽  
Stefan Loehle
Keyword(s):  
High Resolution ◽  
Wind Tunnel ◽  
Laboratory Experiment ◽  
High Enthalpy ◽  
Spectral Profiles

<p>Distinct Na-enhanced and Na-rich meteor spectra have been previously identified by different authors, but the explanation of their origin and interpretation of the corresponding meteoroid composition was lacking. To study this population, we utilized meteor spectra observations of the global AMOS network and high-resolution Echelle spectra of ablating meteorite samples obtained in a high-enthalpy plasma wind tunnel at the IRS facilities in Stuttgart. It was found that most Na-enhanced and Na-rich spectra can be explained by the effect of low meteor speed related to low ablation temperatures and generally do not reflect real meteoroid composition. Spectra obtained by the laboratory experiment simulating low meteor speeds show corresponding Na-rich spectral profiles irrespectively of the meteorite composition. For more clarity in the classification of Na-enhanced and Na-rich meteoroids, we propose new speed-dependent boundaries between the spectral classes. Based on this classification, we reveal real compositional Na enhancement in five cometary meteoroids including two Perseids, an

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