Essays about: "beräkningsfysik"

Showing result 1 - 5 of 7 essays containing the word beräkningsfysik.

  1. 1. Numerical Estimation of Critical Exponents in the 3D XY Model

    University essay from KTH/Fysik

    Author : Christoffer Beiming; [2023]
    Keywords : Theoretical physics; Condensed matter theory; Phase transitions; XY model; Critical exponents; Computational physics; Monte Carlo simulations; Teoretisk fysik; Kondenserade materiens teori; Fasövergångar; XY-modellen; Kritiska exponenter; Beräkningsfysik; Monte Carlo simulering;

    Abstract : The experimentally obtained value of the critical exponent ν is presently in significant disagreement with current theoretical predictions for the λ-universality class. We suggest two novel approaches of determining the exponents ν and η by utilizing the effects of finite size scaling. READ MORE

  3. 2. Molecular Dynamics of the Adsorption of Organic Molecules on Organic Substrates

    University essay from Institutionen för fysik, kemi och biologi; Tekniska högskolan

    Author : Patrik Åkesson; [2013]
    Keywords : Molecular Dynamics; Empirical Force Field; Computational Physics; Material Science; Simulated Annealing; Organic Molecules; Sexiphenyl; Sexithiophene; LAMMPS; CHARMM; Molekyldynamik; Empiriska kraftfält; Beräkningsfysik; Materialvetenskap; Organiska molekyler; Sexifenyl; Sexitiofen; LAMMPS; CHARMM;

    Abstract : A great interest has been shown for self-assembled organic nano-structures that can be used in a variety of optoelectronic applications, from element detection to home electronics. It is known from experimental research that sexiphenyl (6P) grown on muscovite mica substrate form uniaxially self-assembled nanofibers which together with sexithiophene (6T) deposited on top gives the possibility to tune their polarized emission. READ MORE

  4. 3. Theoretical study of orientations of biofunctionalized thiolates on Au(111) surface

    University essay from Beräkningsfysik; Tekniska högskolan

    Author : Jonas Hådén; [2012]
    Keywords : computational physics; biofunctionalized thiolate;

    Abstract : A theoretical analysis of the orientation of biofunctionalized thiolate has been made by changing the surface configuration. The results show that it is possible to match the experimental data by changing the molecular density and also that it is possible to match the experimental data using only hollow sites in the gold surface as placements for the molecules. READ MORE

  5. 4. Modeling and OpenFOAM simulation of streamers in transformer oil

    University essay from Institutionen för fysik, kemi och biologi; Tekniska högskolan

    Author : Jonathan Fors; [2012]
    Keywords : Computational Physics; High voltage; OpenFOAM; Streamer; Electric insulation; Electrodynamics; Finite Volume Method; Beräkningsfysik; Högspänningsteknik; OpenFOAM; Streamer; Elektrisk isolation; Elektrodynamik; Finita volymsmetoden;

    Abstract : Electric breakdown in power transformers is preceded by pre-breakdown events such as streamers. The understanding of these phenomena is important in order to optimize liquid insulation systems. Earlier works have derived a model that describes streamers in transformer oil and utilized a finite element method to produce numerical solutions. READ MORE

  6. 5. Visualizing high-dimensionalplasma simulation data withVTK

    University essay from Institutionen för teknik och naturvetenskap

    Author : Naga Venkata Tallapragada; [2010]
    Keywords : plasmafysik; visualisering; dataanalys; beräkningsfysik;

    Abstract : Gamma ray bursts are flashes of gamma rays, associated with high energy explosions at cosmological distances. The main sources of gamma ray bursts are imploding stars. These bursts are mostly observed as thin beams ejecting out of these imploding stars. READ MORE