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IVC-23 Short Course
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Event Contact(s)
Anton P Stampfl
IVC-23 Organisor
Category
Conferences, Workshops, Meetings
Registration Info
Registration is required
Payment In Full In Advance Only
The Organiser and Host/s of IVC 23 2025 (the “Event”) reserve the right to remove from the venue/Event at any time any attendee deemed to be causing, or potentially causing, a disturbance or exhibiting disruptive or inappropriate behaviour. Such removal does not constitute a right to refund of any fees paid. Please view the Code of Conduct which is detailed on a separate page which all attendees are expected to comply with.
Registration cancellations will be accepted until Wednesday, July 16, 2025 at 12:01 AM
Cancellation Policy:
Cancellations must be notified in writing to the Congress Managers by emailing ivc23_info@vac.agency Note: there will be a A$150.00 administration fee charged for refunds on duplicate registration payments. Cancellation of Registration Fees: Cancellations before Wednesday 16 July 2025 will incur a A$150.00 cancellation fee. Cancellations from Thursday 17 July 2025 to Wednesday 20 August 2025 will incur a 50% cancellation fee. Cancellations on or after Thursday 21 August 2025 will receive no refund.
About this event
Vacuum Gas Dynamics: From Theory to Applications
Prof. Felix Sharipov, Federal University of Parana, Brazil
Prof. Irina Graur, Aix-Marseille University, France
Dr. Oleg Malyshev, Daresbury Laboratory, UK
This course is designed for students, scientists, and engineers who are not experts in Rarefied Gas Dynamics but encounter this field in their routine work. While textbooks and handbooks on vacuum technology typically cover only the fundamentals of gas dynamics, they often lack the depth needed to understand modern analytical and numerical modelling methods. On the other hand, specialised literature can be too complex for non-experts. This short course provides foundational training in Vacuum Gas Dynamics, offering a structured and rigorous introduction to the field. It covers relevant theoretical and experimental methods for practical applications. No prior knowledge of gas dynamics is required.
- Theory: Molecular free path, gas rarefaction and flow regimes. Velocity distribution function. Gas-surface interaction. Accommodation coefficients. Free-molecular flows. Analytical solutions in the free-molecular limit. Test particle Monte Carlo method. Velocity slip and temperature jump conditions. Analytical solutions of the Navier-Stokes equations subject to the slip and jump conditions. Intermolecular interaction and kinetic equation. Flows in the transition regime. Discrete velocity method. Direct simulation Monte Carlo method. Main numerical solutions in the transitional regime with examples of their applications: Poiseuille flow, Coutte flow, heat transfer. Transient flows. Numerical models of Holweck and turbo-molecular pumps. Numerical model of Pirani sensor. Rarefied flow calculator. Modelling of gas dynamics processes in vacuum chambers.
- Experiments: Specifics of the experiments at micro scale; efficiency of the micro scale experiments to obtain the properties of the rarefied gases. Experimental characterisation of the gas-surface interaction. The relations between the theoretical and experimental approaches. Experimental data analysis. Review of main experimental results.
- Applications: Design of large UHV vacuum systems in free molecular flow regime. Vacuum specification and input parameters. Experimental data: measurements, data analysis, extrapolation and using. Models: overview of different models used with an emphasis on 1D diffusion analytical model and numerical models (test particle Monte Carlo and angular coefficients), pumps and sources of gas in different models. Simplifying CAD models for simulations. Predicting 3D pressure profiles with simulations. Optimisation based on results. From a model to a mechanical design. Analysis of errors and uncertainties in a final design. Examples of design.
Monday 15 September
Morning 9:00-12:30
9:00-10:30 Fundamentals of kinetic theory, FS
10:30-11:00 Coffee break
11:00-12:30 Simulations of gas flows under vacuum conditions (overview), IG
Lunch 12:30-14:00
Afternoon 14:00-17:30
14:00-15:30 Fundamentals of DSMC method and examples of its applications, FS
15:30-16:00 Coffee break
16:00-16:45 Gas-surface interaction on impermeable surface, FS
16:45-17:30 Interphase conditions with evaporation and condensation, IG
17:30-18:00 Discussion with the lectures
Tuesday 16 September
Morning 9:00-12:30
9:00-10:30 Gas dynamics calculations for a design of vacuum system, OM
10:30-11:00 Coffee break
11:00-12:30 Measurements of conductance and accommodation coefficients, IG
Lunch 12:30-14:00
Afternoon 14:00-17:30
14:00-15:30 Gas-surface interaction on impermeable surface, FS
15:30- 16:00 Coffee break
16:00- 17:30 Vacuum Gas Dynamics for Particle Accelerators, OM
17:30-18:00 Discussion with the lectures
Instructional material: The participants will get hard and electronic copies of presentations and numerical codes to solve basic problems of vacuum gas dynamics.
| Registration |
800 |
1000 |
| Student Registration |
600 |
800 |
Registration fees have been kept as low as possible via the support of the VSA.
Student Registration fees may be obtained through use of a discount COUPON that will be sent to you. During the Registration process you will be asked to provide details of your supervisor and institution. Once you have completed this questionnaire and saved your registration please email anton.stampfl@vacuumau.org to ask for a student discount COUPON.
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