Comparison of theory with atomic oxygen radiance data from a rocket flight

Levin, Deborah A.; Candler, Graham V.; Howlett, L. C.; Whiting, E. E.

doi:10.2514/3.717

Cited by 8 publications

(1 citation statement)

References 10 publications

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“…Calculation of the radiative emission was performed in a decoupled approach. The chemically reacting flow field was computed using both continuum (CFD) [14][15][16] and particle (DSMC) methods. 17 Then, the emission was predicted from the flow field solutions using the NASA nonequilibrium radiation code NEQAIR.…”

Section: Experimental Validationmentioning

confidence: 99%

Progress and Future Prospects for Particle-Based Simulation of Hypersonic Flow

Schwartzentruber

Boyd

2013

43rd Fluid Dynamics Conference

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The direct simulation Monte Carlo method (DSMC) has evolved over 50 years into a powerful numerical technique for the computation of thermochemcial nonequilibrium gas flows. In this context, nonequilibrium means that velocity and internal energy distribution functions are not in equilibrium forms due to a low number of intermolecular collisions within a fluid element. In hypersonic flow, nonequilibrium conditions occur at high altitude and in regions of flow fields with small length scales. This article highlights significant developments in particle simulation methods (since 2001) applied specifically to hypersonic flows, which now includes Molecular Dynamics in addition to DSMC. Experimental measurements that have led directly to improved DSMC models will be highlighted. Algorithm development for DSMC aimed at increasing computational efficiency is discussed with a focus on hybrid particle-continuum methods. New research that applies all-atom Molecular Dynamics simulation and trajectory-based DSMC simulation to normal shock waves is summarized. Finally, a discussion of state-resolved DSMC modeling is included with reference to future prospects for particle simulation methods and in particular for the DSMC method.

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Section: Experimental Validationmentioning

confidence: 99%

Progress and Future Prospects for Particle-Based Simulation of Hypersonic Flow

Schwartzentruber

Boyd

2013

43rd Fluid Dynamics Conference

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Progress and future prospects for particle-based simulation of hypersonic flow

Schwartzentruber¹,

Boyd²

2015

Progress in Aerospace Sciences

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a b s t r a c tThe direct simulation Monte Carlo method (DSMC) has evolved over 50 years into a powerful numerical technique for the computation of thermochemical nonequilibrium gas flows. In this context, nonequilibrium means that velocity and internal energy distribution functions are not in equilibrium forms due to a low number of intermolecular collisions within a fluid element. In hypersonic flow, nonequilibrium conditions occur at high altitude and in regions of flow fields with small length scales. This article highlights significant developments in particle simulation methods (since 2001) applied specifically to hypersonic flows, which now includes Molecular Dynamics in addition to DSMC. Experimental measurements that have led directly to improved DSMC models will be highlighted. Algorithm development for DSMC aimed at increasing computational efficiency is discussed with a focus on hybrid particle-continuum methods. New research that applies all-atom Molecular Dynamics simulation and trajectory-based DSMC simulation to normal shock waves is summarized. Finally, a discussion of state-resolved DSMC modeling is included with reference to future prospects for particle simulation methods and in particular for the DSMC method. (I.D. Boyd).Please cite this article as: Schwartzentruber TE, Boyd ID. Progress and future prospects for particle-based simulation of hypersonic flow. Progress in Aerospace Sciences (2014), http://dx.Progress in Aerospace Sciences ∎ (∎∎∎∎) ∎∎∎-∎∎∎ Please cite this article as: Schwartzentruber TE, Boyd ID. Progress and future prospects for particle-based simulation of hypersonic flow. Progress in Aerospace Sciences (2014), http://dx.

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