Sökning: "pressure taps"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden pressure taps.
1. Multimethod aerodynamic research of engine-realistic turbine rear structures
Sammanfattning : Despite the significant advancements in aircraft engine technology over the past years, the aerodynamics of engine-realistic turbine rear structures (TRS) remain largely unexplored. The TRS, a structural and aerodynamic component situated downstream of the low-pressure turbine (LPT), plays a pivotal role in engine aerodynamic performance, deswirling the LPT flow to maximize the engine thrust. LÄS MER
2. Measuring with pressure sensitive paint in time-varying flows
Sammanfattning : Increasingly tougher legislation on internal combustion engine emissions drives the development towards smaller engines with higher efficiency where an important component is the gas-exchange system and especially the turbocharger. The flow in the gas-exchange system is inherently pulsating and unsteady and the present thesis aims at investigating if and how pressure sensitive paint (PSP) can be used for internal unsteady flows of relevance for engine applications. LÄS MER
3. Experimental Aero Study on Turbine Rear Structures at Engine-Realistic Flow Conditions
Sammanfattning : The aviation industry has made great progress in continuous improvements that reduce the key pollutants associated with aero engines. However, high demands on the aviation industry drive manufacturers and designers to develop even more efficient aero engines. LÄS MER
4. Experimental Study and Modelling of Spacer Grid Influence on Flow in Nuclear Fuel Assemblies
Sammanfattning : The work is focused on experimental study and modelling of spacer grid influence on single- and two-phase flow. In the experimental study a mock-up of a realistic fuel bundle with five spacer grids of thin plate spring construction was investigated. A special pressure measuring technique was used to measure pressure distribution inside the spacer. LÄS MER
5. A sensitivity analysis of the Winter-Kennedy method
Sammanfattning : Hydropower is among the lowest-cost electrical energy sources due to its long lifespan and lower operation and maintenance cost. The hydro-mechanical components of hydropower plants generally last about four to five decades, then they are either overhauled or replaced. LÄS MER