Photon Doppler Velocimetry and Simulation of Ejection of Particles from the Surface of Shock-Loaded Samples

Andriyash, A. V.; Dyachkov, S. A.; Zhakhovsky, V. V.; Kalashnikov, D. A.; Kondratev, A. N.; Kuratov, S E; Михайлов, А. Л.; Rogozkin, D. B.; Федоров, А. В.; Finyushin, S. A.; Chudakov, E. A.

doi:10.1134/s1063776120030097

Cited by 7 publications

(2 citation statements)

References 52 publications

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“…For m 0 = 2 mg/cm 2 , the original peak disappears and the spectrum again exhibits a single peak. The double-peak spectrum has been observed in previous experiments [18,34] and simulations, [24,35] and is the result of the direct exposure of incident light at the free surface. The detail explanation is shown in Subsection 3.2.…”

Section: Influence Of Ejecta Parameterssupporting

confidence: 58%

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum*

Shi¹,

Ma²,

Dang³

et al. 2021

Chinese Phys. B

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The photon Doppler velocimetry (PDV) spectrum is investigated in an attempt to reveal the particle parameters of ejecta from shock-loaded samples in a vacuum. A GPU-accelerated Monte–Carlo algorithm, which considers the multiple-scattering effects of light, is applied to reconstruct the light field of the ejecta and simulate the corresponding PDV spectrum. The influence of the velocity profile, total area mass, and particle size of the ejecta on the simulated spectra is discussed qualitatively. To facilitate a quantitative discussion, a novel theoretical optical model is proposed in which the single-scattering assumption is applied. With this model, the relationships between the particle parameters of ejecta and the peak information of the PDV spectrum are derived, enabling direct extraction of the particle parameters from the PDV spectrum. The values of the ejecta parameters estimated from the experimental spectrum are in good agreement with those measured by a piezoelectric probe.

show abstract

Section: Influence Of Ejecta Parameterssupporting

confidence: 58%

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum*

Shi¹,

Ma²,

Dang³

et al. 2021

Chinese Phys. B

View full text Add to dashboard Cite

show abstract

“…For m 0 = 2 mg/cm 2 , the original peak disappears and the spectrum again exhibits a single peak. The doublepeak spectrum has been observed in previous experiments 19,37 and simulations, 25,38 and is the result of the direct exposure of incident light at the free surface.…”

Section: Interpretation Of Pdv Spectrum a Influence Of Ejecta Parameterssupporting

confidence: 56%

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum

Shi,

Ma,

Dang

et al. 2020

Preprint

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The photon Doppler velocimetry (PDV) spectrum is investigated in an attempt to reveal the particle parameters of ejecta from shock-loaded samples in a vacuum. A GPU-accelerated Monte-Carlo algorithm, which considers the multiplescattering effects of light, is applied to reconstruct the light field of the ejecta and simulate the corresponding PDV spectrum. The influence of the velocity profile, total area mass, and particle size of the ejecta on the simulated spectra is discussed qualitatively. To facilitate a quantitative discussion, a novel theoretical optical model is proposed in which the single-scattering assumption is applied. With this model, the relationships between the particle parameters of ejecta and the peak information of the PDV spectrum are derived, enabling direct extraction of the particle parameters from the PDV spectrum. The values of the ejecta parameters estimated from the experimental spectrum are in good agreement with those measured by a piezoelectric probe.

show abstract

Molecular dynamics study on micro jet in single crystal aluminum

Yang

Zhao²,

Gao³

et al. 2022

Acta Mech. Sin.

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Photon Doppler Velocimetry and Simulation of Ejection of Particles from the Surface of Shock-Loaded Samples

Cited by 7 publications

References 52 publications

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum*

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum*

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum

Molecular dynamics study on micro jet in single crystal aluminum

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