Sökning: "Hybrid Rocket Engine"

Hittade 4 uppsatser innehållade orden Hybrid Rocket Engine.

1. 1. Simulation of Combustion in a Hybrid Rocket Engine

   Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

   Författare :Oscar Andersson; [2023]
   Nyckelord :Thesis; Hybrid Rocket Engine; CFD; computational fluid dynamics; combustion;

   Sammanfattning : A numerical investigation on the combustion mechanics of a hybrid rocket engine is performed through unsteady Reynolds-averaged Navier-Stokes simulation. The hybrid rocket engine model is based on an experimental laboratory scale engine design operating on GOX and HDPE as a propellant. LÄS MER

3. 2. Design of a modular small-scale PMMA/Air hybrid rocket research engine

   Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Gustaf von Platen; [2023]
   Nyckelord :hybrid rocket engine; PMMA combustion; rocket engine design; combustion diagnostics; rocket engine; regression rate; preliminary design definition; hybrid rocket engine simulation; gaseous oxidizer; transparent rocket engine;

   Sammanfattning : Rocket propulsion using the hybrid-propellant scheme is a technology that offers much promise in applications where high-performance liquid rocket engines are deemed too complex and solid rocket motors are considered to lack performance or safety. However, despite extensive research, there is still a lack of knowledge in the theoretical aspects of hybrid rocketry, especially in the area of fuel-oxidizer mixing and fuel regression rate. LÄS MER

4. 3. Numerical study with computational fluid dynamics of hybrid rocket engine.

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Martin Lundmark; [2020]
   Nyckelord :LES; Hybrid Rocket; openFOAM;

   Sammanfattning : In this thesis a Large Eddy Simulation (LES) of a hybrid rocket engine burning ethylene (C2H4) in nitrous oxide (N2O) is explored. This is done primarily using a solver and solution scheme provided by the Swedish Defence Research Agency (FOI) and an (at this date) unpublished chemistry model. LÄS MER

5. 4. Numerical approach of a hybrid rocket engine behaviour : Modelling the liquid oxidizer injection using a Lagrangian solver

   Master-uppsats, KTH/Mekanik

   Författare :Gustave Sporschill; [2017]
   Nyckelord :Hybrid propulsion; combustion; numerical simulations; two-phase flow; La-grangian approach;

   Sammanfattning : To access and operate in space, a wide range of propulsion systems has been developed, from high-thrust chemical propulsion to low-thrust electrical propulsion, and new kind of systems are considered, such as solar sails and nuclear propulsion. Recently, interest in hybrid rocket engines has been renewed due to their attractive features (safe, cheap, flexible) and they are now investigated and developed by research laboratories such as ONERA. LÄS MER