Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet Engine
This numerical study was conducted to investigate the flow properties in a model scramjet configuration of the experiment in the T4 shock tunnel. In most numerical simulations of flows in shock tunnels, the inflow conditions in the test section are determined by assuming the thermal equilibrium of t...
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| Format: | Article |
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MDPI AG
2020-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/3/606 |
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| author | Seoeum Han Sangyoon Lee Bok Jik Lee |
| author_facet | Seoeum Han Sangyoon Lee Bok Jik Lee |
| author_sort | Seoeum Han |
| collection | DOAJ |
| description | This numerical study was conducted to investigate the flow properties in a model scramjet configuration of the experiment in the T4 shock tunnel. In most numerical simulations of flows in shock tunnels, the inflow conditions in the test section are determined by assuming the thermal equilibrium of the gas. To define the inflow conditions in the test section, the numerical simulation of the nozzle flow with the given nozzle reservoir conditions from the experiment is conducted by a thermochemical nonequilibrium computational fluid dynamics (CFD) solver. Both two-dimensional (2D) and three-dimensional (3D) numerical simulations of the flow in a model scramjet were conducted without fuel injection. Simulations were performed for two types of inflow conditions: one for thermochemical nonequilibrium states obtained from the present nozzle simulation and the other for the data available using the thermal equilibrium and chemical nonequilibrium assumptions. The four results demonstrate the significance of the modelling approach for choosing between 2D or 3D, and thermal equilibrium or nonequilibrium. |
| first_indexed | 2024-04-11T11:03:25Z |
| format | Article |
| id | doaj.art-d73117980f444bdfb373581812f655cc |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T11:03:25Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d73117980f444bdfb373581812f655cc2022-12-22T04:28:28ZengMDPI AGEnergies1996-10732020-01-0113360610.3390/en13030606en13030606Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet EngineSeoeum Han0Sangyoon Lee1Bok Jik Lee2Interdisciplinary Program in Space System, Seoul National University, Seoul 08826, KoreaDepartment of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, KoreaInstitute of Advanced Aerospace Technology, Seoul National University, Seoul 08826, KoreaThis numerical study was conducted to investigate the flow properties in a model scramjet configuration of the experiment in the T4 shock tunnel. In most numerical simulations of flows in shock tunnels, the inflow conditions in the test section are determined by assuming the thermal equilibrium of the gas. To define the inflow conditions in the test section, the numerical simulation of the nozzle flow with the given nozzle reservoir conditions from the experiment is conducted by a thermochemical nonequilibrium computational fluid dynamics (CFD) solver. Both two-dimensional (2D) and three-dimensional (3D) numerical simulations of the flow in a model scramjet were conducted without fuel injection. Simulations were performed for two types of inflow conditions: one for thermochemical nonequilibrium states obtained from the present nozzle simulation and the other for the data available using the thermal equilibrium and chemical nonequilibrium assumptions. The four results demonstrate the significance of the modelling approach for choosing between 2D or 3D, and thermal equilibrium or nonequilibrium.https://www.mdpi.com/1996-1073/13/3/606scramjet enginethermochemical nonequilibriumhypersonic flowshock tunnel |
| spellingShingle | Seoeum Han Sangyoon Lee Bok Jik Lee Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet Engine Energies scramjet engine thermochemical nonequilibrium hypersonic flow shock tunnel |
| title | Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet Engine |
| title_full | Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet Engine |
| title_fullStr | Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet Engine |
| title_full_unstemmed | Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet Engine |
| title_short | Numerical Analysis of Thermochemical Nonequilibrium Flows in a Model Scramjet Engine |
| title_sort | numerical analysis of thermochemical nonequilibrium flows in a model scramjet engine |
| topic | scramjet engine thermochemical nonequilibrium hypersonic flow shock tunnel |
| url | https://www.mdpi.com/1996-1073/13/3/606 |
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