Sökning: "Wall distance function"

Visar resultat 1 - 5 av 21 avhandlingar innehållade orden Wall distance function.

  1. 1. Turbulence modeling using automated code generation applied to asymmetric diffuser flow

    Författare :Johan Gullman-Strand; KTH; []
    Nyckelord :Fluid mechanics; Turbulence modeling; Explicit algebraic Reynolds stress model; Low-Re K-w; Automated code generation; Wall distance function;

    Sammanfattning : .... LÄS MER

  3. 2. Applications of the Complex Modulation Transfer Function on SEA-systems

    Författare :Karl-Ola Lundberg; Teknisk akustik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vacuum technology; hydraulics; Mechanical engineering; modulated noise; in-situ; modulation transfer function; loss factor; SEA; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik;

    Sammanfattning : The SEA coupling and dissipation loss factors are determined in-situ from Complex Modulation Transfer Functions, CMTF:s, based on measured impulse-responses. A quotient of CMTF:s is least-square curve-fitted to a SEA model and the SEA loss factors are determined from the results of the curve-fit. LÄS MER

  4. 3. Effects of hypoxia on macrophage function in atherosclerosis

    Författare :Ellen Knutsen Rydberg; Göteborgs universitet; []
    Nyckelord :atherosclerosis; hypoxia; macrophage; IL-8; oxidized LDL; oxysterols; 15-lipoxygenase-2;

    Sammanfattning : Atherosclerosis is a complex disease, which affects large and medium sized arteries and is characterized by an arterial wall thickening. A constant supply of oxygen is needed to maintain cell functions in the atherosclerotic plaque. The oxygen distribution to the cells in the arterial wall depends on diffusion. LÄS MER

  5. 4. Studies on ventilatory function in chronic neuromuscular disorders

    Författare :Jan Weinberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :ventilatory dysfunction; neuromuscular disorders; diaphragm; electromyogram; power spectrum; blood gas; ventilatory mechanics; sleep; polysomnography;

    Sammanfattning : Ventilatory dysfunction is common in neuromuscular disorders (NMD). The present studies aimed at evaluating and developing methods for diagnosis of ventilatory function in NMD. Methods included were diaphragmatic EMG (EMGdi), blood gas monitoring assessed at rest and during exercise and nocturnal respiratory and sleep parameters. LÄS MER

  7. 5. Laser powder bed fusion of 316L stainless steel - Microstructure and mechanical properties as a function of process parameters, design and productivity

    Författare :Alexander Leicht; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tensile properties; productivity; design for additive manufacturing; additive manufacturing; thin-wall structures; stainless steel; laser powder bed fusion; microstructure; 316L;

    Sammanfattning : One of the most common additive manufacturing techniques for fabricating metallic components is laser powder bed fusion, which has demonstrated great potential in fabricating parts with properties exceeding the properties achieved via conventional methods. To fully utilize the process’s potential, a more profound understanding of the microstructure and properties of the laser powder bed fusion processed material is required. LÄS MER