# Simulating Nonequlibrium Flow for Ablative Earth Reentry

@article{Shang2010SimulatingNF, title={Simulating Nonequlibrium Flow for Ablative Earth Reentry}, author={Joseph J. S. Shang and Sergey T. Surzhikov}, journal={Journal of Spacecraft and Rockets}, year={2010}, volume={47}, pages={806-815} }

The present study of kinetic models for hypersonic nonequilibrium flow attempts to better understand the vibrational relaxation by comparing Park’s model and the preferential dissociation formulations of Treanor– Marrone. A simplified approximation for conductive–convective heat transfer computation on the Stardust capsule has also been implemented by recognizing that the electron excitation rarely populates beyond first quantum level above ground state. In addition, the partially ionized gas… Expand

#### 23 Citations

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Abstract Nearly all the required scientific disciplines for computational hypersonic flow simulation have been developed on the framework of gas kinetic theory. However when high-temperature physical… Expand

Simulating Stardust Earth Reentry with Radiation Heat Transfer

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A multigroup spectral method is integrated into an interdisciplinary formulation for nonequilibrium radiative hypersonic flows. The developed simulation capability has been successfully applied to… Expand

Simulation of Radiative Transfer in Nonequilibrium Plasmas Containing N and O Species Based on the Approximate Collision-Radiative Method

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An approximate collision-radiative method is developed to calculate energy level populations of atoms and applied to simulate radiative transfer in a shock layer. Considering nonequilibrium plasmas… Expand

A computational approach for hypersonic nonequilibrium radiation utilizing space partition algorithm and Gauss quadrature

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An efficient computational capability for nonequilibrium radiation simulation via the ray tracing technique has been accomplished and a computational efficiency gain nearly forty times is realized over that of the existing simulation procedures. Expand

Radiation aerothermodynamics of the Stardust space vehicle

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Abstract This paper presents a radiation-gasdynamic model and the results of calculating the radiative-convective heating of the Stardust space vehicle, obtained using the NERAT(2D)-ASTEROID computer… Expand

Non-equilibrium Models for High Temperature Gas Flows

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Andrienko, Daniil. Ph.D., Department of Mechanical and Materials Engineering, Engineering Ph.D. Program, Wright State University, 2014. Non-equilibrium Models for High Temperature Gas Flows. A… Expand

A Simplified Method for Calculating Spectral Emission of Nonequilibrium Air Plasmas in Hypersonic Shock-Layers

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A simplified method for calculating the spectral emission of nonequilibrium air plasmas is developed. In order to obtain the nonequilibrium energy level populations, the nonequilibrium coefficients… Expand

A simplified method for calculating spectral emission of nonequilibrium air plasmas in hypersonic shock-layers

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A simplified method for calculating the spectral emission of nonequilibrium air plasmas is developed. In order to obtain the nonequilibrium energy level populations, the nonequilibrium coefficients… Expand

eRC Model for Prediction of Molecular Bands Radiation for Stardust Entry Conditions

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Mathematical modeling of Stardust flight data is performed with the use of computer platform NERAT(2D)+ASTEROID. This computer platform intended for solving full system of radiative gasdynamic… Expand

Radiative Heat Exchange in a Hydrogen-Fueled Scramjet Combustion Chambers

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The complex computational simulation for heat radiation is built on the interaction of quantum physics, chemical kinetics, and aerodynamics through the radiation transfer equation. For hypersonic… Expand

#### References

SHOWING 1-10 OF 32 REFERENCES

Modeling of Ionizing Hypersonic Flows in Nonequilibrium

- Physics
- 1995

A two-temperature model is developed for the description of thermal and chemical nonequilibrium viscous hypersonic flows including ionization. A preferential dissociation model and nonpreferential… Expand

Simulating Stardust Earth Reentry with Radiation Heat Transfer

- Physics
- 2011

A multigroup spectral method is integrated into an interdisciplinary formulation for nonequilibrium radiative hypersonic flows. The developed simulation capability has been successfully applied to… Expand

Computation of weakly ionized hypersonic flows in thermochemical nonequilibrium

- Physics, Chemistry
- 1991

A numerical method to compute a two-dimensional hypersonic flowfield that is weakly ionized and in thermochemical nonequilibrium has been developed. Such a flowfield is described by coupled partial… Expand

Governing equations for weakly ionized plasma flowfields of aerospace vehicles

- Physics
- 2003

A generalized set of conservative equations for simulating the flowfield in a hypersonic weakly ionized gas flows is presented. Additional numerical and physical complexities associated with the… Expand

Analysis of Hypersonic Nonequilibrium Flow over Ablating Surface

- Chemistry
- 2009

The initial values and boundary conditions of an ablating surface are studied using different kinetic models for calculating the external species concentration of nonequilibrium air over the… Expand

Viscous Shock-Layer Simulation of Airflow past Ablating Blunt Body with Carbon Surface

- Materials Science
- 1999

A kinetic model for air-carbon surface interaction is suggested. The model is based on the langmuir approach to the kinetics of catalytic reactions. It yields a reasonable agreement with published… Expand

Navier-Stokes Solutions with Finite Rate Ablation for Planetary Mission Earth Reentries

- Materials Science
- 2005

A formulation of finite rate ablation surface boundary conditions, including oxidation, nitridation, and sublimation of carbonaceous material with pyrolysis gas injection, based on surface species… Expand

Kinetic Models Analysis For Super-Orbital Aerophysics

- Chemistry
- 2008

Description of computational radiation and fluid dynamic (CRFD) code NERAT (Non- Equilibrium Radiation Aero Thermodynamics) intended for solving radiation gas dynamic problems of re-entry aerophysics… Expand

Comparison of Coupled Radiative Navier-Stokes Flow Solutions with the Project Fire II Flight Data

- Physics
- 1994

A nonequilibrium, axisymmetric, Navier-Stokes flow solver with coupled radiation has been developed to use in the design of thermal protection systems for vehicles where radiation effects are… Expand

AEROTHERMODYNAMICS OF THE STARDUST SAMPLE RETURN CAPSULE

- Materials Science
- 1999

The development of a new high- delity methodology for predicting entry ows with coupled radiation and ablation is described. The prediction methodology consists of an axisymmetric, nonequilibrium,… Expand