Contribution to a conference proceedings/Contribution to a book

PUBDB-2025-00999

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Exploitation of continuum and kinetic theory approaches for the simulation of particle beam experiments

Peravali, S. K. (Corresponding author)CFEL*Extern* ; Samanta, A. K.CFEL*XFEL.EU*DESY* ; amin, m. ; Neumann, P.Extern*DESY* ; Küpper, J.CFEL*XFEL.EU*DESY* ; Breuer, M.CFEL*

2025
Springer Nature Cham
ISBN: 978-3-032-00093-4, 978-3-032-00094-1 (electronic)

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Please use a persistent id in citations: doi:10.1007/978-3-032-00094-1_59  doi:10.3204/PUBDB-2025-00999

Abstract: X-ray free-electron lasers (XFELs) promise to allow for atomically resolved imaging of isolated nanoparticles through single-particle diffractive imaging (SPI). Achieving this requires nanoparticle beams with controlled dimensions, typically generated using aerosol injectors operating under varying gas-flow conditions. Numerical simulations play a vital role in understanding and optimizing these injection systems. We present a multi-scale simulation framework that models gas dynamics across continuum-, transition-, and free-molecular-flow regimes as well as particle translation. Leveraging computational fluid dynamics (CFD), direct simulation Monte Carlo (DSMC), and corresponding hybrid methods, the framework provides a foundation for improving aerosol-injection techniques. It was validated against experiments over wide temperature (4–300 K) and size (10–300nm) ranges.

Keyword(s): Aerospace engineering (LCSH) ; Astronautics (LCSH) ; Fluid mechanics (LCSH) ; Plasma (Ionized gases) (LCSH)

Note: Open Access;

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Contributing Institute(s):

1. CFEL-CMI (FS-CFEL-CMI)
2. Helmut Schmidt University (HSU)
3. beauftragt von UNI (UNI/CUI)
4. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. HIDSS-0002 - DASHH: Data Science in Hamburg - Helmholtz Graduate School for the Structure of Matter (2019_IVF-HIDSS-0002) (2019_IVF-HIDSS-0002)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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Database coverage:
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