Workshop: Frontiers for Hypergravity Experiments and Model Tests

(Last Updated, 1/20/2021, Note: This page will be continually updated)

The Frontiers for Hypergravity Experiments and Model Tests workshop is sponsored by the University of California at Davis Center for Geotechnical Modeling with support from the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) Technical Committee 104 (Physical Modeling in Geotechnics). Over the last few decades the centrifuge has become an accepted and important tool for research in the area of geotechnical engineering. The behavior of geologic materials is governed to a large extent by self-weight, making scaled hyper gravity experiments and models so important to the field. Geotechnical engineering is not, however, the only research field where gravity plays an important role.

The objectives of this workshop are:

  1. To identify and make the case for new, underutilized, and emerging areas of research across engineering and the sciences that might benefit from the use of a centrifuge.
  2. To identify the facility and instrumentation needs for these new areas.

Participants in this Workshop will come from a wide range of engineering and science disciplines with the common connection that they are interested in topics in which gravity plays a role and hyper gravity experiments and/or modeling might advance the field. Invited speakers include individuals with prior centrifuge experience, as well as others who have interests in topics where gravity-driven physics are important.  The workshop is open to other attendees, and it is expected that individuals representing major centrifuge facilities around the world, as well as individuals engaged in centrifuge testing or interested in the topic will attend.

The workshop will be virtual (ZOOM) with two, 3-hour sessions. Invited presentations consisting of a few (4-7) Power Point slides will be posted on-line at least 2 weeks prior to the first session. During the two virtual sessions, the authors of the presentations will be given time to elaborate on their presentations, comment on other posted presentations, and add other comments on the workshop topic. A panel will then discuss the presentations, followed by a general discussion by all workshop attendees. Post workshop, an executive summary will be written describing the workshop discussions and conclusions, with recommendations for centrifuge research opportunities across multiple engineering and science fields. The workshop will be recorded and available to view after its conclusion.

Workshop Presentations:

Session I:  7 December 2020, 4-7 PM PST

Presenter Video presentation from workshop
Presentation given at the workshop Presentation submitted prior to the workshop
Ross Boulanger Video Clip Frontiers of Hypergravity Experiments and Model Tests N/A
Christophe Gaudin Video Clip Welcome from TC 104 N/A
Bruce Kutter Video Clip Introduction to the workshop on Frontiers of Hypergravity Experiments and Model Tests N/A
Yunmin Chen Video Clip Hypergravity Experiments and CHIEF Hypergravity Experiments and CHIEF
Ryan Phillips Video Clip Arctic Engineering Arctic Engineering
Alexander Forrest Video Clip Mass Wasting and Collapse: Polar Ice-Shelves in the Modern Age Mass Wasting and Collapse: Polar Ice-Shelves in the Modern Age
Discussion of Presentations Video Clip N/A N/A
Harry Yeh Video Clip Hypergravity Experiments Applications to Geophysical Fluid Dynamics Hypergravity Experiments Applications to Geophysical Fluid Dynamics
Ed Clukey Video Clip A system approach to structural and geologic problems in the centrifuge A system approach to structural and geologic problems in the centrifuge
Andy Fourie & Cristina Vulpe Video Clip Detecting changes in state using shear wave velocity measurements Detecting changes in state using shear wave velocity measurements
Manolis Veveakis Video Clip Unraveling the physics of reacting interfaces in Nuclear Waste Disposal through hyper gravity tests Unraveling the physics of reacting interfaces in Nuclear Waste Disposal through hyper gravity tests
Carlos Santamarina Video Clip Energy Geo-Science and Engineering -Scaling Laws – Energy Geo-Science and Engineering -Scaling Laws –
Discussion of Presentations Video Clip N/A N/A
Panel: Rick Fragaszy (moderator) Video Clip Panel Discussion N/A

Session II: 9 December 2020, 4-7 PM PST

Presenter Video presentation from workshop
Presentation given at the workshop Presentation submitted prior to the workshop
Dan Wilson Video Clip Frontiers of Hypergravity Experiments and Model Tests: Welcome to Day 2 N/A
Christophe Gaudin Video Clip Day 1 Summary N/A
Rick Fragaszy Video Clip The Path Forward N/A
Ya Ting Liao Video Clip Role of Gravity and Buoyancy Flows in Fire Scalability Role of Gravity and Buoyancy Flows in Fire Scalability
Itai Einav N/A Crunchy Matter Crunchy Matter
Otis Walton Video Clip Gravity Effects on Granular Flow Behavior and Consequences for Equipment Design Gravity Effects on Granular Flow Behavior and Consequences for Equipment Design
Discussion of Presentations Video Clip N/A N/A
Chao Sun N/A Supergravitational turbulent thermal convection Supergravitational turbulent thermal convection
Duanyang Zhuang N/A Physical Modelling of Tectonic Deformation on a Hypergravity Centrifuge Physical Modelling of Tectonic Deformation on a Hypergravity Centrifuge
Maciej Zwieniecki N/A Hydraulic properties of soil-root interface as a function of suction pressure Hydraulic properties of soil-root interface as a function of suction pressure
Discussion of Presentations Video Clip N/A N/A
Panel: Bruce Kutter (moderator) Video Clip Panel Discussion, De, Curtis, DeJong N/A
Rick Fragaszy Video Clip Final Discussion and Wrap Up N/A

Workshop Agenda:
Agenda for both workshop sessions

Workshop Resources:

  1. Background Information
    1. Scaling laws, scale effects from a geotechnical perspective
    2. Catalogue of scaling laws and similitude questions in geotechnical centrifuge modelling
    3. Rankine Lecture By Andrew Schofield
    4. Link to proceedings for ICPMG (International Conference on Physical Modeling in Geotechnics) conferences
      1. London 2018
      2. Perth 2014
      3. Zurich 2010
      4. Hong Kong 2006
  2. Presentations Submitted by Frontier Speakers
    1. Example slides for workshop speakers (Flow of Ice on Glacial Till)
  3. Description of Centrifuge Facilities
    1. Natural Hazards Research at the Center for Geotechnical Modeling (UC Davis)
    2. Geotechnical Centrifuge Experimental Research Facility (University of Alberta)
    3. National Geotechnical Centrifuge Facility (The University of Western Australia)
    4. Centrifuge Modeling Multiuser Laboratory -LM²C (Federal University of Rio de Janeiro)
    5. CIEST at CU Boulder: Overview of Centrifuge Facilities (CU Boulder)

Organizing Committee:
Bruce Kutter – Professor Emeritus of Civil and Environmental Engineering, UC Davis
Richard Fragaszy – Independent Consultant, Virginia
Trevor Carey – Postdoctoral Researcher, UC Davis
Christophe Gaudin – Head of Oceans Graduate School, Director of the Centre for Offshore Foundation Systems, The University of Western Australia

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