Large eddy simulation of homogeneous isotropic turbulence
AuthorZeigler, Harald Bergersen
The theme for the master thesis is simulation of homogeneous, isotropic turbulence. I have shown that the energy of the velocity field is decaying in time, but the comparison to the reference solution is however invalid, due to the fact that the reference solution may have scalings that are not obvious to the observer, and that my own simulation results seemed to behave quite strange, with a sudden fall of energy in the first time-steps, which I have no explanation for why happened. The thesis consists of a rather large theory section and a smaller discussion in the end. Chapters 3 and 4 are mainly introductory and addressing the theme and job description. They also serve as mild introductions to tuirbulence theory as well as mathematical, numerical subjects. Overall, the reader is assumed not to be very familiar with mathematical terms, applied mathematics and physics, so many terms are explained. The provided theory is designed to teach a reader totally unfamiliar with science some things, but not all. The author has not forgot about the experienced reader who may be an expert in the field, and the level of the thesis should be high enough for that person also to maintain interest while reading.
PublisherUniversitetet i Tromsø
University of Tromsø
MetadataShow full item record
The following license file are associated with this item:
Showing items related by title, author, creator and subject.
Schulz, Jörn (Doctoral thesis; Doktorgradsavhandling, 2013-12-18)The use of statistical shape analysis in medical settings has increased during the last decades. This thesis presents contributions to three major topics of statistical shape analysis with application to medical problems. ...
Long-range memory in Earth surface temperatures: spatial scale dependence and land-sea differences Fredriksen, Hege-Beate (Master thesis; Mastergradsoppgave, 2013-05-15)The use of long-range memory models as a description of the noise in Earth surface temperatures has increased the recent years, and as a measure of the persistence for such time series we have the Hurst exponent. It is ...
A multiwavelet approach to the direct solution of the Poisson equation: implementation and optimization Jensen, Stig Rune (Master thesis; Mastergradsoppgave, 2009-11-15)This work is presenting a fully numerical approach for the direct solution of the Poisson equation for the electrostatic potential given by an arbitrary charge density. Efficient solution of this equation is important in ...