Journal Article

PUBDB-2025-00417

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png An improved numerical simulation methodology for nanoparticle injection through aerodynamic lens systems

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

2025
American Institute of Physics College Park, Maryland

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Please use a persistent id in citations: doi:10.1063/5.0260295  doi:10.3204/PUBDB-2025-00417

Abstract: Aerosol injectors applied in single-particle diffractive imaging experiments demonstrated their potential in efficiently delivering nanoparticles with high density. Continuous optimization of injector design is crucial for achieving high-density particle streams, minimizing background gas, enhancing X-ray interactions, and generating high-quality diffraction patterns. We present an updated simulation framework designed for the fast and effective exploration of the experimental parameter space to enhance the optimization process. The framework includes both the simulation of the carrier gas and the particle trajectories within injectors and their expansion into the experimental vacuum chamber. A hybrid molecular-continuum-simulation method (DSMC/CFD) is utilized to accurately capture the multi-scale nature of the flow. The simulation setup, initial benchmark results of the coupled approach, and the validation of the entire methodology against experimental data are presented.

Keyword(s): Fluid Dynamics (physics.flu-dyn) ; FOS: Physical sciences

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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)
3. AIM, DFG project G:(GEPRIS)390715994 - EXC 2056: CUI: Advanced Imaging of Matter (390715994) (390715994)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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