Search for dissertations about: "rocket"

Showing result 1 - 5 of 28 swedish dissertations containing the word rocket.

  2. 1. Supersonic flow separation with application to rocket engine nozzles

    Author : Jan Östlund; KTH; []
    Keywords : turbulent; boundary layer; shock wave; interaction; overexpanded; rocket nozzle; flow separation; control; side-load; experiments; models; review;

    Abstract : The increasing demand for higher performance in rocketlaunchers promotes the development of nozzles with higherperformance, which basically is achieved by increasing theexpansion ratio. However, this may lead to flow separation andensuing instationary, asymmetric forces, so-called side-loads,which may present life-limiting constraints on both the nozzleitself and other engine components. READ MORE

  4. 2. Rocket-borne in situ measurements in the middle atmosphere

    Author : Jonas Hedin; Jörg Gumbel; Markus Rapp; Ove Havnes; Stockholms universitet; []
    Keywords : rocket measurements; noctilucent clouds; meteoric smoke; nightglow; mesosphere; aerodynamics; NATURAL SCIENCES; NATURVETENSKAP; atmosfärvetenskap; Atmospheric Sciences;

    Abstract : The Earth's mesosphere and lower thermosphere in the altitude range 50-130 km is a fascinating part of our atmosphere. Complex interactions between radiative, dynamical, microphysical and chemical processes give rise to several prominent phenomena, many of those centred around the mesopause region (80-100 km). READ MORE

  5. 3. Flow Processes in Rocket Engine Nozzles with Focus on Flow Separation and Side-Loads

    Author : Jan Östlund; KTH; []
    Keywords : turbulent; boundary layer; shock wave; interaction; intermittent; overexpanded; rocket nozzle; flow separation; side-load; models; criteria; prediction; review;

    Abstract : .... READ MORE

  6. 4. Improving the Mechanical Properties of Composite Rocket Propellants

    Author : Niklas Wingborg; KTH; []
    Keywords : ;

    Abstract : Solid composite rocket propellants usually contain ammoniumperchlorate embedded in an elastic polymer binder. The bindercan be based on a liquid prepolymer such as hydroxyl-terminatedpolybutadiene, HTPB, or poly(3-nitratomethyl-3-methyl oxetane,PolyNIMMO. READ MORE

  7. 5. Influence of thermal radiation in liquid rocket engines

    Author : Thomas Badinand; KTH; []
    Keywords : ;

    Abstract : .... READ MORE