Title: CNRS Senior Researcher
Country/Region: France
Period: 2023/02/06-2023/3/30
Theme: Rheology of granular suspensions with application to magma flows
Host: Mie Ichihara
Introduction: Elisabeth Guazzelli is Senior Researcher at the CNRS (The French National Center of Research). Her research interests are in the field of particulate multiphase flows, such as granular media and suspensions. She has led a very active and diversified research group at the IUSTI Laboratory of Aix-Marseille Université and CNRS, and has now moved to the MSC Laboratory of Université de Paris and CNRS. She is staying from February 6, 2023 to March 30,2023 at ERI. She is hosted by Dr. Mie Ichihara and plan to conduct research on the rheology of granular suspensions with application to magma flows.
Research Report:
General description of my work:
From February 6 to March 30, 2023, I visited the Earthquake Research Institute
(ERI) and principally collaborated with Dr. Ichihara and Dr. Tapia on the
project rheology of granular suspensions with application to magma and lava
flows, see next section. This collaboration started a few years ago and has already
been concretized by a paper on the transition from the viscous to inertial
rheology in granular suspensions [1] and we anticipate further results on the
applications to geophysical flows.
I also had discussions with Dr. Kuwano together with Dr. Ichihara and Dr.
Tapia on the pressure-imposed rheology of dry and fluid-immersed granular
suspensions. In particular, we discussed the pressure-imposed rheometer that
has been build at ERI and his application to particles suspended in fluids. This
starting collaboration will be continued in the future.
On March 1, 2023, I gave a course to the students at ERI on granular suspensions
which was followed by questions and lively discussions. My slides
were distributed to the students.
On March 7, 2023, I visited Tokyo University of Agriculture and Technology
together with Dr. Ichihara and Dr. Tapia. I had a laboratory tour in Mechanical
and Chemical Engineering and met with Dr. Hanasaki, Dr. Kameda, Dr.
Nagatsu, Dr. Nishimura, Dr. Tagawa, and Dr. Takada. I gave a seminar entilted
Rheology of dense granular suspensions: from Newtonian to Bagnoldian
rheology.
From March 8 to 11, 2023, a field trip to the island of Kyushu was organized
by Dr. Ichihara. Dr. Ichihara, Dr. S´anchez, Dr. Tapia and myself participated to
this trip. A theoretical seismologist, Dr. Ando, who is working on fault rheology
joined the trip and showed us his field near Nagasaki. We visited the Unzen
volcano which experienced a major eruption in 1991-1995. We observed the
structure of the lava dome and visited some remnants of damages by the pyroclastic
flows and avalanches as well as the geothermal areas and hot springs.
From February 6 to March 30, 2023, I visited the Earthquake Research Institute
(ERI) and principally collaborated with Dr. Ichihara and Dr. Tapia on the
project rheology of granular suspensions with application to magma and lava
flows, see next section. This collaboration started a few years ago and has already
been concretized by a paper on the transition from the viscous to inertial
rheology in granular suspensions [1] and we anticipate further results on the
applications to geophysical flows.
I also had discussions with Dr. Kuwano together with Dr. Ichihara and Dr.
Tapia on the pressure-imposed rheology of dry and fluid-immersed granular
suspensions. In particular, we discussed the pressure-imposed rheometer that
has been build at ERI and his application to particles suspended in fluids. This
starting collaboration will be continued in the future.
On March 1, 2023, I gave a course to the students at ERI on granular suspensions
which was followed by questions and lively discussions. My slides
were distributed to the students.
On March 7, 2023, I visited Tokyo University of Agriculture and Technology
together with Dr. Ichihara and Dr. Tapia. I had a laboratory tour in Mechanical
and Chemical Engineering and met with Dr. Hanasaki, Dr. Kameda, Dr.
Nagatsu, Dr. Nishimura, Dr. Tagawa, and Dr. Takada. I gave a seminar entilted
Rheology of dense granular suspensions: from Newtonian to Bagnoldian
rheology.
From March 8 to 11, 2023, a field trip to the island of Kyushu was organized
by Dr. Ichihara. Dr. Ichihara, Dr. S´anchez, Dr. Tapia and myself participated to
this trip. A theoretical seismologist, Dr. Ando, who is working on fault rheology
joined the trip and showed us his field near Nagasaki. We visited the Unzen
volcano which experienced a major eruption in 1991-1995. We observed the
structure of the lava dome and visited some remnants of damages by the pyroclastic
flows and avalanches as well as the geothermal areas and hot springs.
View All
Fiscal Year: 2022
Fiscal Year: 2022