Tidligere arrangementer - Side 133
An idealized mathematical model of tsunami evolution in deep sea and across the continental shelf is proposed. The initial value problem in deep sea is related to the well known Cauchy- Poisson problem, and the tsunami propagation across the continental shelf is derived using the linearized shallow water equations.
When analyzing different cases of tsunamis in deep sea it was found that tsunamis evolve into two basic wave types. One resembles a single wave and the other a wave packet. The analysis of different cases of tsunamis at the shoreline reveals that the continental shelf, due to its geometrical properties, serves as a tsunami amplifier, producing tsunami amplitudes up to 20 times larger than those at the edge of the continental shelf.
A comparison with tsunami measurements suggests that the idealized model may be used for a reliable assessment of the principle hydrodynamic properties of the tsunami, such as the tsunami amplitude and its half- period.
The new mathematical model for tsunami evolution is used to derive a synthetic tsunami database for the southern part of the Eastern Mediterranean coast. Information about coastal tsunami amplitudes, half-periods, currents, and inundation levels is presented.
Michael Stiassnie is professor at the Department of Civil and Environmental Engineering, Technion – Israel Institute of Technology.
CEES Extra seminar by Daniel Ruzzante
Friday seminar by Karen Wiltshire
Friday seminar by Frank Johannes
Cathrine Wahlstr?m Tellefsen, Fysisk institutt, UiO
Partnerforums tredje m?te i ?konomistyringsnettverket.
Hvilke konsekvenser har Norges ?konomiske situasjon for arbeidet med effektivisering og gjennomf?ring av reformer i forvaltningen? Vi ?nsker ? utforske hvordan bruk av insentiver i offentlig sektor kan bidra til mer effektive tjenester, og hvordan insentiver kan konstrueres for ? st?tte opp under politiske m?l.
Kjetil R?ysland, Avdeling for biostatistikk, Universitetet i Oslo, skal snakke om
Evaluation of counterfactual interventions in epidemiology
Tomi Koivisto (Utrecht University)
Kaffe og kaker fra kl 10!
CEES Extra seminar by Samuel Subbey
Friday seminar by Yves Van de Peer (Note the time!)
Fredagskollokvium
Fredagskollokvium
Simulations of Fluid-Solid interactions (FSI) are becoming more common as faster computers enables the study of larger models including both fluids and solids. In many applications it is of significant importance to determine the impact that a flowing fluid has on the mechanical structure surrounding it. Vortex-induced vibrations can give structural failure due to fatigue, but it can also produce undesired acoustic noise. During the seminar, several examples of FSI problems and solutions will be demonstrated. The examples include the study of flow induced vibrations in a compressor exhaust, the dynamic flow of oil through a filter, the impact of water waves on a submerged object, etc.
Large-eddy simulations are also advancing in the industrial CFD society. RANS modeling has shown to be insufficient in many complex flow situations, and LES has proven to provide answers to many fundamental questions in turbulent flows. A brief demonstration of an example with flow over a wing profile is presented. Using LES, it is possible to extract valuable information regarding lift, drag, etc., but it is also possible to visualize the turbulent structures evolving from the boundary layer on the wing.
Love H?kansson is at EDR - Engineering Data Resources
Fredagskollokvium
Arvid Raknerud, Statistisk Sentralbyr?, skal snakke om
Indirect inference methods for stochastic volatility models based on non-Gaussian Ornstein-Uhlenbeck processes
Friday seminar by R. J. Scott McCairns
Gjesteforelesning ved Professor Steinar Johansen, 亚博娱乐官网_亚博pt手机客户端登录sgruppe for RNA og Transkriptomikk, Universitetet i Troms?.
Hans Olav Melberg, Institutt for helseledelse og helse?konomi, Universitetet i Oslo, og SIRUS, skal snakke om
Hvem er den Anonyme forfatteren bak boken Kongepudler?
Fredagskollokvium
CEES Extra Seminar by Jeffrey Hutchings
Ingrid K. Glad, Matematisk Institutt, Universitetet i Oslo, skal snakke om
Local comparison of empirical densities: a challenge from gene therapy
Friday seminar by Nick Kamenos
Fredagskollokvium