Sökning: "complex flows"

Visar resultat 16 - 20 av 253 avhandlingar innehållade orden complex flows.

  1. 16. What's Next? : Organising Complex Product Development with Lean

    Författare :Caroline Ingvarsson; Mats Engwall; Lars Uppvall; Anette Hallin; Pascal Le Masson; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Lean Knowing-in-practice Work organisation; Product Development; Industriell ekonomi och organisation; Industrial Economics and Management;

    Sammanfattning : An everyday question asked during complex product development work is, ‘What to do next’? Not just because the development in itself is advanced and integrated, but also because it is planned and performed in large organisations, in difficult projects, and across organisational lines. There have been different approaches to try and reduce the difficulty of having to organise complex product development, primarily through using different kinds of management models. LÄS MER

  3. 17. Managing variation in hospital patient flows

    Författare :Olle Olsson; Erik Sandberg; Mattias Elg; Daniel Ekwall; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Performing healthcare services is a complex practice. With the continuous developments in the medical field, healthcare organisations and professionals have become increasingly specialised, and healthcare services increasingly fragmented. LÄS MER

  4. 18. Laminar and turbulent particle laden flows : a numerical and experimental study

    Författare :Seyed Hamid Tabaeikazerooni; Luca Brandt; Jeanette Hussong; Raffaella Ocone; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Suspension flow; inertial effect; turbulent duct flow; finite-size particles; Immersed Boundary Method IBM ; Astigmatism Particle Tracking Velocimetry APTV ; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : Particle laden flows are widespread in nature and in industrial applications. Dust storms, geophysical flows, pharmaceutical processes, fluidized beds and blood flow are only a few examples. Both global and local properties of a particle laden flow may alter significantly in comparison to the corresponding single phase flow. LÄS MER

  5. 19. Lagrangian Particles in Turbulence and Complex Geometries

    Författare :Azad Noorani; Philipp Schlatter; Johan Revstedt; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Direct numerical simulation; wall turbulence; secondary motion; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : Wall-dominated turbulent dispersed multiphase flows occur in a variety of industrial, biological and environmental applications. The complex nature of the  arrier and the dispersed phase is elevated to a higher level introducing geometrical complexities such as curved walls. LÄS MER

  7. 20. Feedback Control of Spatially Evolving Flows

    Författare :Espen Åkervik; Dan Stefan Henningson; Luca Brandt; Martin Berggren; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stability; Control; Estimation; Absolute Convective instabilities; Model reduction; Fluid mechanics; Strömningsmekanik;

    Sammanfattning : In this thesis we apply linear feedback control to spatially evolving flows in order to minimize disturbance growth. The dynamics is assumed to be described by the linearized Navier--Stokes equations. Actuators and sensor are designed and a Kalman filtering technique is used to reconstruct the unknown flow state from noisy measurements. LÄS MER