Improving the performance and durability of gas turbine aircraft engines depends highly on achieving a better understanding of the flow interactions between the combustor and turbine sections. The flow exiting the combustor is very complex and it is characterized primarily by elevated turbulence and large variations in temperature and pressure. The heat transfer and aerodynamic losses that occu...

The article deals with the issue of experimental research so-called design overloaded stage. A new device enabling measurements on two-stage axial turbine is advantageously used in this task. setup designed so that a preparatory stage included front examined introduces some aerodynamic overload already flow path phase. This program focused primarily effect leakage flows and their mixing mainstr...

The flow behavior inside the shrouded disk system is of importance in appropriate design of turbomachinery cavities and turbine test cell hydraulics dynamometer. The turbulent incompressible flow is analyzed for the shrouded disk system with axial clearance. The flow core behaves as a Batchelor type structure when a weak inflow is imposed on the disk cavity. By increasing the inflow, the centra...

In order to reduce efficiency losses and improve the aerodynamic of axial turbines used in industry, flow fields turbine stage were investigated numerically experimentally under different gaps this work. The influence on unsteadiness field distribution is discussed. results show that increases when distance reduced. difference entropy distances are mainly found section from stator inlet rotor i...

The central recirculation zone (CRZ) in a swirl stabilized gas turbine combustor has a dominant effect on the fuel air mixing process and flame stability. Most of state of the art swirlers share one disadvantage; the fixed swirl number for the same swirler configuration. Thus, in a mathematical sense, Reynolds number becomes the sole parameter for controlling the flow characteristics inside the...

in studies done on porous burner, generally burners with axial flow are considered. in this paper, porous burners with radial and axial flow have been modeled numerically and results of radial and axial porous burners with equal fuel consumptions are compared. the mechanism used in combustion phenomenon is 15 stage mechanisms which predict the pollutions production precisely. the results show a...

The article describes the measurement methods and data evaluation from a single-stage axial turbine with high reaction (50%). Four operating modes of were selected, in which wake traversing behind nozzle bucket five-hole pneumatic probes took place. further focuses on losses for all four measured modes, including analysis uncertainties.