How gas-surface interaction models affect the aerodynamic forces of outerspace vehicle?
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Gas-surface interaction models have a significant impact on the aerodynamic forces of outer space vehicles. These models are essential for accurately predicting the forces and heating experienced by hypersonic vehicles . The accuracy of these models is crucial, especially under hypersonic conditions where there are large velocity and temperature differences between the gas flow and the boundary surface . The Cercignani-Lampis (CL) model is considered the most sophisticated gas-surface interaction model . However, it has limitations when it comes to accurately capturing the momentum and temperature of reflected gas molecules . To address this, a modified CL model with independent momentum and thermal accommodation coefficients has been developed, which accurately describes the scattering of gas molecules in a wider range of hypersonic rarefied gas flows . The choice of gas-surface interaction model, such as the Maxwell or Cercignani-Lampis-Lord model, can significantly influence the aerodynamic forces in rarefied flow .
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10 Citations | The paper compares the effects of gas-surface interaction models on aerodynamic forces using direct simulation Monte Carlo (DSMC) codes. The results show that the choice of interaction model significantly influences the aerodynamic forces of aerospace vehicles. |
| The paper discusses the influence of gas-surface interaction models on the aerodynamic characteristics of aerospace vehicles in high-altitude aerodynamics. It presents the results of calculations using three different models and their sensitivity to force and moment coefficients. | |
| The paper discusses different gas-surface interaction models and their relevance to orbital aerodynamics applications. It does not specifically mention how these models affect the aerodynamic forces of outer space vehicles. | |
29 Citations | The paper discusses different gas-surface interaction models and their relevance to orbital aerodynamics applications, but it does not explicitly mention how these models affect the aerodynamic forces of outer space vehicles. |
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