Events

This Week at Thayer School

Special Guest Lecture: Viktor Popov, Wessex Institute of Technology, Southampton, UK

Monday, November 17, 9:00-10:00am
"A Robust Meshless Integral Equation Method"
Cummings 200

The boundary element method (BEM) is a well established numerical technique used in engineering, which is based on transformation of the original partial differential equation/s by using Green's identities into integral equation/s over the boundary of the given domain. The clear advantage of the BEM in respect to widely used domain techniques, such as the FEM and the FVM, is in the fact that discretization of the boundary only is necessary, which saves time when preparing large complex three-dimensional (3D) models. The main disadvantage is that the resulting system matrix is fully populated and therefore the solution procedure becomes expensive for very large problems.

The approach which will be presented exploits the recent developments by Popov and collaborators in the sub-domain BEM techniques. The sub-domain BEM technique produces sparse system matrix but as any other domain technique it requires more complicated mesh generation, which becomes expensive for complex 3D problems. The new technique in particular uses the developments in the overlapping sub-domain BEM and produces a meshless scheme which does not require any mesh or node connectivity. The geometry of the problem is defined by the nodes placed on the boundary and the accuracy in the geometry description can be set by the density of the nodes. The accuracy and robustness of the method has been tested on a convection-diffusion problem and has been compared to previously reported results obtained using the FEM, BEM DRM-MD, and DRM-MD with overlapping sub-domains. The approach showed comparable to superior performance compared to the other considered formulations. This formulation is especially effective for 3D problems because of simplicity in preparation of the model and does not suffer from instabilities in the solution.

Professor Viktor Popov, B.Sc. in technical physics from the University of Belgrade and Ph.D. in environmental modelling from the University of Wales. He has worked at the Centre for Application of Radioisotopes, Skopje, Macedonia (FYRO), Mechanical Engineering Department at the Imperial College, London, UK, and is currently the head of the Environmental Fluid Mechanics Division at the Wessex Institute of Technology, Southampton, UK. He is the principal author of one book and several chapters in books, co-editor of several books and is author or co-author of over ninety scientific papers. He is a member of editorial board of Engineering Analysis with Boundary Elements. He currently supervises seven Ph.D. and four M.Phil. students. His main areas of research are: Computational fluid dynamics, Acoustics, Heat transfer, Environmental modelling, Risk assessment. He currently focuses part of his research efforts on development of a robust meshless numerical technique which will be suitable for complex 3D applications.

Thayer Council Meeting

Thursday, November 20, 12:30-1:30pm
MacLean B01

Come join us for free food while we discuss current student and club issues, sponsor upcoming events, and work to better Thayer School.

November Birthdays

Thursday, November 20, 10:30am
Great Hall, Cummings Hall

Biomedical Imaging Lecture Series: Alex Bijamov

Friday, November 21, 8:00-9:00am
"Method of Auxiliary Sources Applied to Optimization of DNA Sequencing"
Cummings 200
For more information, contact Roxanne.H.Campagna@Dartmouth.edu

Jones Seminar: Michael Morris, University of Michigan

Friday, November 21, 3:30pm (refreshments at 3:15pm)
"Raman Spectroscopy of Bone and Cartilage: A Multidisciplinary Approach to Understanding Development, Function and Disease"
Spanos Auditorium, Cummings Hall
View the seminar live starting at 3:00pm (requires QuickTime). Or subscribe to the Jones Seminar podcast.

We will briefly review the biology, structure and function of bone and cartilage and describe osteoporosis and osteoarthritis, two major disorders that can incapacitate their victims if left untreated. These diseases now cost the U.S. tens of billions of dollars annually. After a short introduction to the technology, we will show how Raman spectroscopy contributes to almost every aspect of study of musculoskeletal tissue structure, function and disease diagnosis. The contributions of spectroscopy and spectroscopists range from illuminating the mechanism by which bone is mineralized, through elucidation of the chemical changes accompanying exercise and aging to development of new non-invasive and minimally invasive diagnostics for bone and cartilage diseases. Throughout we will emphasize how progress in musculoskeletal tissue science and medicine requires teams of chemists, biologists, biomedical engineers and clinicians.

Find out more about the Jones Seminars on Science, Technology, and Society

See Thayer School's Events Calendar for additional events or to submit an event.

Upcoming Events

Jones Seminars on Science, Technology, and Society

Fall 2008, Fridays at 3:30pm (refreshments at 3:15pm)
Spanos Auditorium, Cummings Hall)
Schedule

2009 Formula Hybrid Competition

May 4-6, 2009
New Hampshire Motor Speedway, Loudon, NH

Formula Hybrid challenges college and university students to design, build, and race high-performance plug-in hybrid vehicles. Building on the Formula SAE program, Formula Hybrid adds an extra level of complexity: fuel efficiency.

With technological challenges for students with backgrounds in electrical, mechanical, and computer engineering, Formula Hybrid encourages interdisciplinary teamwork and innovation.

The 2009 competition will be held on May 4-6, 2009 at the New Hampshire Motor Speedway, Loudon, NH. The competition is organized by Thayer School and carries the endorsement of the Society of Automotive Engineers, Inc. (SAE) and the Institute of Electrical and Electronics Engineers, Inc. (IEEE). The event also included an educational program for high-school students who are interested in learning more about Formula Hybrid.

Learn more at the Formula Hybrid website.

2009 Investiture

Saturday, June 13, 2009, 10:00am
Spaulding Auditorium, Hopkins Center

Thayer School of Engineering's 2009 Investiture ceremony will take place in Spaulding Auditorium in the Hopkins Center on Saturday, June 13 at 10:00am.

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