Analytical, stochastic and deterministic modeling of diffusion pumps Article Swipe
Tim Teichmann
,
C. Tantos
,
C. Day
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1063/5.0187495
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1063/5.0187495
Diffusion pumps are kinetic high vacuum pumps that operate by transferring momentum from a high-speed (typically supersonic) operating fluid vapor jet towards the pumped gas. Their typical operating regime lies in the transitional gas regime (Knudsen number around unity) and can therefore not be described accurately with neither free-molecular nor continuum theory. Hence, the Boltzmann equation has to be solved. In the present work we compare two numerical methods for solving the Boltzmann equation, namely the stochastic direct simulation Monte Carlo (DSMC) and the deterministic discrete velocity method (DVM), for an artificial, one-dimensional test problem resembling the main physical processes in a diffusion pump. The advantages and disadvantages of the two methods are outlined with regard to accuracy and computational resource requirements. Additionally, we compare the numerical results to results obtained from a simplified analytical model.
Related Topics
Concepts
Knudsen number
Direct simulation Monte Carlo
Boltzmann equation
Statistical physics
Supersonic speed
Kinetic theory
Diffusion
Momentum (technical analysis)
Mechanics
Monte Carlo method
Computer science
Work (physics)
Physics
Mathematical optimization
Applied mathematics
Mathematics
Dynamic Monte Carlo method
Thermodynamics
Economics
Statistics
Finance
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1063/5.0187495
- https://pubs.aip.org/aip/acp/article-pdf/doi/10.1063/5.0187495/19583450/180002_1_5.0187495.pdf
- OA Status
- hybrid
- References
- 28
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4391639027
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4391639027Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1063/5.0187495Digital Object Identifier
- Title
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Analytical, stochastic and deterministic modeling of diffusion pumpsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-01-01Full publication date if available
- Authors
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Tim Teichmann, C. Tantos, C. DayList of authors in order
- Landing page
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https://doi.org/10.1063/5.0187495Publisher landing page
- PDF URL
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https://pubs.aip.org/aip/acp/article-pdf/doi/10.1063/5.0187495/19583450/180002_1_5.0187495.pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
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hybridOpen access status per OpenAlex
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https://pubs.aip.org/aip/acp/article-pdf/doi/10.1063/5.0187495/19583450/180002_1_5.0187495.pdfDirect OA link when available
- Concepts
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Knudsen number, Direct simulation Monte Carlo, Boltzmann equation, Statistical physics, Supersonic speed, Kinetic theory, Diffusion, Momentum (technical analysis), Mechanics, Monte Carlo method, Computer science, Work (physics), Physics, Mathematical optimization, Applied mathematics, Mathematics, Dynamic Monte Carlo method, Thermodynamics, Economics, Statistics, FinanceTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
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28Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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| primary_location.landing_page_url | https://doi.org/10.1063/5.0187495 |
| publication_date | 2024-01-01 |
| publication_year | 2024 |
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