Dr. George Matheou
|Address:||United Technologies Building, Room 384.|
Department of Mechanical Engineering, Storrs, CT 06269
This is the group of Dr. Georgios “George” Matheou in the Department of Mechanical Engineering. Our mission is to provide world-class education, engage and inform the general public, and solve significant problems using computational science to make a positive impact on society and the environment.
We are growing!
The Computational Fluid Dynamics group has immediate openings for graduate students. We are also looking for dedicated and motivated undergraduate students to join our research team.
April 9: New Conference Paper
Oumaima Lamaakel, a graduate student in our group, is presenting her work on the organization of shallow precipitating cumulus clouds in the “Improvement and Calibration of Clouds in Models” conference.
March 12: Teaching Award
Dr. Matheou received the University Teaching Innovation Award from the Center for Excellence in Teaching and Learning at the University of Connecticut. We are grateful and honored to receive this award. We thank our colleagues at the School of Engineering, the William Benton Museum of Art, and the entire UConn community for their support.
March 10: FYFD Feature
Our Stratocumulus cloud research has been featured in FY Fluid Dynamics, a blog that “Celebrates the physics of all that flows,” and a leader in fluid dynamics education and outreach.
February 26: Seminar
Our talk “Modeling atmospheric turbulence: Large-eddy simulation of the atmospheric boundary layer” at the Department of Mathematics, University of Brasilia is now available on YouTube.
January 20: New Paper!
Clouds develop the same way regardless of how we observe them: they appear identical to observers on the ground or to observers moving fast in an airplane. This is a property of many physical systems and it is called Galilean invariance, after Galileo Galilei. Unfortunately, in some computer simulations, Galilean invariance is not attained. In a recent paper in the Journal of Computational Physics, we discover key mechanisms leading to the breakdown of Galilean invariance and develop recommendations to increase the accuracy and efficiency of computer simulations of turbulent flows.
This work was supported by the National Science Foundation (NSF-AGS-1916619) and it is part of our work in the Unified Parameterization Climate Process Team.
December 1: AGU Fall Meeting 2020
We are participating in the AGU Fall Meeting 2020 with several presentations:
Length scales and spectra in shallow precipitating cumulus convection (A064-0003)
Oumaima Lamaakel and Georgios Matheou,
Large-eddy simulation of spatial transitions of stratocumulus- to cumulus-topped boundary layers (A118-0005)
Development, implementation and process-based evaluation of a new unified boundary layer and convection parameterization in climate models: The EDMF approach (A129-01)
Joao Teixeira, Julio T Bacmeister, Leo Donner, Rong Fu, Georgios Matheou, Mikael Witte, Marcin Kurowski, Kay Suselj, Mark Smalley, Yi-Hsuan Chen, Zhihong Tan, Maria Joao Chinita, Rachel L Storer, Matthew D Lebsock and Adam Ross Herrington
MethaNet: An AI-powered approach to quantifying methane point-source emission from high-resolution 2-D plume imagery (GC085-0014)
Siraput Jongaramrungruang, Christian Frankenberg, Andrew K Thorpe and Georgios Matheou
Trees as sensors of pre-eruptive change (V015-0006)
Florian Max M Schwandner, Joshua Fisher, Chad Daniel Deering, Jennifer L Lewicki, Ryan Pavlick, Christopher Harpel, Robert Bogue, Georgios Matheou, Charles E Miller, Jorge Andres Diaz, David C Pieri, Maarten J de Moor, Eliecer A Duarte, Fiona Soper, Benton Neil Taylor and Snehamoy Chatterjee
Fall teaching: ME 3250 “Fluid Dynamics I” Section 2
If you are taking ME 3250 Section 2 in Fall 2020 you can follow our Twitter account for updates, to ask questions, engage and interact with Dr. Matheou and the TAs. Even if you are not taking ME 3250, follow us, for interesting fluid dynamics content and to keep up to date with our group activities!
September 4: Online teaching
We can stay safe and effectively learn at the same time! We are in our kitchen today recording class videos. Can you spot the textbook? Best wishes for a great semester!
August 4: Congratulations Oumaima!!!
Oumaima Lamaakel, a graduate student in our group, has successfully (virtually) defended her Master’s Thesis today! Oumaima will join the Environmental Engineering Ph.D. Program at UConn in the Fall. Oumaima’s Master’s research is about computer-model error in high-fidelity simulations of clouds and aims to improve weather forecasts and climate projections.
July 20: Spiderweb Stratocumulus Paper
Our paper on the structure of Stratocumulus clouds has been published in the Special Issue of the journal Atmosphere on “Turbulent Transport in Atmospheric Boundary Layers”. Dr. Matheou was the Guest Editor for the Special Issue.
July 13: GABLS4 LES Model Intercomparison Paper
The paper documenting the GABLS4 LES Model Intercomparison study has been published Boundary Layer Meteorology! Our LES model is one of ten models that contributed simulations to model a very stable Antarctic boundary layer. “GABLS4” is an interesting acronym: it is the Fourth GEWEX Atmospheric Boundary Layer Study, and GEWEX is the Global Energy and Water Exchanges project, which is as part of the World Climate Research Programme (WCRP). So, we contributed our LES to GABLS4, which is part of GEWEX under WCRP.
December 16: AGU Fall Meeting 2019
We participated in the AGU Fall Meeting with several presentations:
Monday, December 9
Residual Cross-Grid Flow Numerical Error in Large-Eddy Simulations of Cumulus-Topped Boundary Layers (A13N-3131)
Oumaima Lamaakel and Georgios Matheou
Infrared Instrument Radiance Modeling from Large Eddy Simulations to Access Sensitivity to Marine Planetary Boundary Layer Processes (A11T-2827)
Evan Fishbein, Bjorn Lambrigtsen, Matthew D. Lebsock, Georgios Matheou, Vivienne Payne, Mathias M. Schreier, Joao Teixeira, and Robert C Wilson
Inherent Properties of Clouds in the PBL Derived from Multi-angle Spectro-Polarimetric Imaging at the “Edge of Space:” New Capabilities of JPL’s AirMSPI Sensor on NASA’s Airborne ER-2 Platform (A11T-2828 )
Anthony B. Davis, Feng Xu, Gerard van Harten, David J. Diner, Aviad Levis, Yoav Y. Schechner, and Georgios Matheou
Wednesday, December 11
Boundary Layer Clouds and Climate: From LES to Simple Models (A32E-01)
Joao Teixeira, Georgios Matheou, Daniel Chung, and Peter Kalmus
Thursday, December 12
The spiderweb structure of stratocumulus clouds (A41Q-2873)
Georgios Matheou, Anthony B. Davis, and Joao Teixeira
December 6: An Art and Science Collaboration
Jonathan Goodrich and Liam McNeece two creative and talented students in Digital Media and Design created an informative and engaging animation to describe the dynamics of stratocumulus clouds. The animation was created in the Scientific Visualization class taught by Prof. Anna Lindemann. The animation seamlessly integrates Jonathan’s and Liam’s illustrations/animations with a movie from a high-resolution simulation of a stratocumulus cloud with our group’s large-eddy simulation model.
November 18: Weather and Art!
We visited Ms Govoni’s 7th Grade Art Class at Parish Hill High School and discussed clouds and weather. Inspired by our conversation, images and movies, students created marble art. Marble art has a striking resemblance to the Earths’s atmospheric motions: behaves like a two dimensional fluid with very little horizontal mixing. (more pictures coming soon!)
Our group participated in Research Connections 2019, a networking event at UConn intended to expose first and second year students to undergraduate research through engaging in meaningful interactions with faculty, staff, graduate students, and peers. Below, Oumaima Lamaakel, a graduate student in our group, is discussing her high resolution simulations of clouds and atmospheric dispersion. Many thanks to the Office of First Year Programs & Learning Communities (FYP&LC), the Office of Undergraduate Research for organizing the even!
Art and Science!
As part of the Fluid Dynamics I course, the Fluid Dynamics in Art and Nature exhibition (August 23 – October 13, 2019) at the Benton Museum of Art explores the intersection of art and science by bringing together works of art from the Benton Museum’s collection with computer simulations of natural phenomena. The exhibition aims to promote creativity, critical thinking, and self-learning. Fluid Dynamics in Art and Nature is curated by Dr. Matheou, and Dr. Amanda Douberley, Assistant Curator/Academic Liaison, Willian Benton Museum of Art.
Benton Museum Workshop: Thursday, October 10 at noon