Sökning: "Transient Hot Wire"

Hittade 4 avhandlingar innehållade orden Transient Hot Wire.

  1. 1. Thermal Characterization and Modelling in Microsystem Packaging Applications

    Författare :Elisabeth Nyström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Carbon nanotubes; Thermal management; Transient Hot Wire; Composite; Microchannels; Anisotropic Conductive Adhesive;

    Sammanfattning : As the electronics circuits grow denser and the power consumption per area unit is increasing, new more efficient technologies for heat removal is necessary. Heat fluxes from the integrated circuit, IC, in the order of 100W/cm2 are not rare. LÄS MER

  3. 2. A Study on the Thermal State of Steelmaking Ladles

    Författare :Björn Glaser; Du Sichen; Petrus Christiaan Pistorius; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; steelmaking ladle; refractory; thermal conductivity; transient hot wire method; slag; peheating;

    Sammanfattning : In the present thesis a study on the thermal state of steelmaking ladles was undertaken. The transient hot wire method was verified for thermal conductivity measurements on metallurgical slags and applied to ladle slag measurements. Temperature measurements on ladles in an industrial environment were carried out. LÄS MER

  4. 3. Transient growth of disturbances in laminar pipe flow

    Författare :Lars Bergström; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik;

    Sammanfattning : Transient growth of disturbances is studied theoretically in pipe Poiseuille flow and experimentally both in pipe and plane Poiseuille flow. The theoretical results, based on the initial value problem, show that a large transient amplification occurs for small, angular dependent disturbances in pipe Poiseuille flow although all modes are damped. LÄS MER

  5. 4. Experiments on oblique transition in wall bounded shear flows

    Författare :Per Elofsson; KTH; []
    Nyckelord :;

    Sammanfattning : This thesis considers laminar-turbulent transition in wall bounded shear flows, with a focus on transition emanating from a pair of oblique disturbance waves. The oblique waves interact nonlinearly and transfers disturbance energy into streamwise vortices, which generate streamwise streaks through a linear mechanism that operates also at conditions where stability theory predicts decay of all eigenmodes. LÄS MER