Sökning: "Reynolds number effect"

Visar resultat 11 - 15 av 73 avhandlingar innehållade orden Reynolds number effect.

  1. 11. Experimental Investigations of Heat Transfer in a Channel with Ribs and Obstacle

    Författare :Zahra Ghorbani-Tari; Värmeöverföring; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Liquid crystal thermography; ribs; entrance region; control the heat transfer around an obstacle by rib;

    Sammanfattning : This thesis presents experimental investigations of local heat transfer in a rectangular channel (aspect ratio AR = 4) with continuous transverse ribs as well as an obstacle. Liquid crystal thermography (LCT) is employed to obtain the temperature fields in the heat transfer experiments. LÄS MER

  3. 12. Modeling of aerodynamic particle interaction

    Författare :Asim Jadoon; Strömningsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The purpose of the current study is to investigate the effect of particle-pair interaction for various separation distances and angular positions. The results obtained are used in a particle-laden turbulent jet flows in order to improve the existing Lagrangian Particle Tracking (LPT) models. LÄS MER

  4. 13. Droplet growth in atmospheric turbulence : A direct numerical simulation study

    Författare :Xiang-Yu (李翔宇) Li; Gunilla Svensson; Axel Brandenburg; Wojciech Grabowski; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cloud micro-physics; turbulence; inertial particles; DNS; condensation; collision; coalescence; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Sammanfattning : This Ph.D. thesis examines the challenging problem of how turbulence affects the growth of cloud droplets in warm clouds. Droplets grow by either condensation or collision. LÄS MER

  5. 14. Water tunnel validation and experiments at high angles of attack for aircraft conceptual design

    Författare :Cameron Munro; Robert Nelson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The identification of aerodynamic characteristics at high angles of attack for combat aircraft during conceptual design are addressed in this work. The requirements during conceptual design to predict such characteristics rapidly and cost effectively mean that accuracy must often be compromised. LÄS MER

  7. 15. Numerical studies on flows with secondary motion

    Författare :Jacopo Canton; Philipp Schlatter; David Moxey; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear dynamical systems; instability; bifurcation; flow control; skin-friction reduction; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : This work is concerned with the study of flow stability and turbulence control - two old but still open problems of fluid mechanics. The topics are distinct and are (currently) approached from different directions and with different strategies. LÄS MER