What does this research mean for the field?

The Cercignani-Lampis gas-surface scattering kernel can be successfully extended to include diffuse scattering with partial energy accommodation and vibrational energy accommodation of diatomic molecules for direct simulation Monte Carlo (DSMC) calculations. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To extend the Cercignani–Lampis gas–surface scattering model to accommodate diffuse scattering with incomplete energy transfer and diatomic vibrational energy exchange.

April 1, 1991Physics of Fluids A Fluid Dynamics

Some extensions to the Cercignani–Lampis gas–surface scattering kernel

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Authors

RLR. G. LordUniversity of Oxford

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Implication

Simulation study demonstrates expanded Cercignani-Lampis scattering kernels in rarefied gas flows, facilitating accurate implementation in direct simulation Monte Carlo calculations.

Key Points

To extend the Cercignani–Lampis gas–surface scattering model to accommodate diffuse scattering with incomplete energy transfer and diatomic vibrational energy exchange.
Formulated mathematical extensions to the Cercignani–Lampis kernel for diffuse scattering with partial accommodation.
Derived accommodation algorithms for diatomic molecular vibrational energy using equally spaced energy levels.
Implemented and evaluated the expanded kernels within direct simulation Monte Carlo (DSMC) test calculations.
Successfully incorporated partial energy accommodation into diffuse scattering regimes within the kernel framework.
Demonstrated practical computational implementation of harmonic-oscillator vibrational energy accommodation in DSMC test cases.

Cite This Study

R. G. Lord (1991) studied this question.

synapsesocial.com/papers/6aaa67c86a46b5e7d4a88e68 https://doi.org/10.1063/1.858076

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Implication

Simulation study demonstrates expanded Cercignani-Lampis scattering kernels in rarefied gas flows, facilitating accurate implementation in direct simulation Monte Carlo calculations.

Some extensions to the Cercignani–Lampis gas–surface scattering kernel

Discussion

Member takes

Implication

Key Points

Cite This Study

Some extensions to the Cercignani–Lampis gas–surface scattering kernel

Discussion

Member takes

Implication

Key Points

Cite This Study

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