... determine the effect of isentropic exponent on turbine loss. non-ideal gas dynamics turbine aerodynamic design measurement techniques organic Rankine cycle computational fluid dynamics supersonic flow 05 12 2019 11 02 2020 12 02 2020 29 07 2020 Contributed...

... the impact that varying pitch has on supersonic flow for the same blade and same operating conditions. Shock system changes show that there is a significant dependency of the supersonic flow on the pitch to chord ratio. The Mach number distribution at midplane for several pitch to chord ratios ( t / c...

... are conducted using the Rolls-Royce HYDRA/PADRAM suite. The CFD solver is able to capture most of the spatial heat flux variations and gives prediction results, which compare well with the experimental data. The results show that the majority of the blade tip experiences a supersonic flow with peak Mach number...

... of the software in order to make it amenable for teaching purposes. The paper reviews in detail the set of cascade models incorporated for subsonic and supersonic flow, for design and off-design operating conditions. Moreover, the methods used for the prediction of surge and choke are discussed in detail...

... shock and propagate downstream. With the flow conditions in Fig. 12b the code predicted negative critical damping. The computed mean flow fields at all of the observed flutter events have the same characteristics as the flow field shown in Fig. 12b , supersonic flow along the suction side...

... the primary shock structure is required to minimize MPT noise when operating with supersonic flow onto the fan tips. These requirements are achieved by matching the flow coefficient at flyover to that at cruise. This maximizes flyover efficiency and places the sideline position, where the relative tip Mach...

... waves aerospace engines supersonic flow rotors boundary layers Mach number acoustic intensity flow simulation The role of acoustics in the design of aircraft power plants has assumed significance in recent years as a consequence of stringent requirements imposed by regulatory authorities...

... measurement viscosity compressors aerodynamics supersonic flow computational fluid dynamics turbulent diffusion The work reported here constitutes one element of a program being conducted by the MIT Gas Turbine Laboratory and its collaborators to develop and validate the technology for design...

... and found to correlate with the vortex blockage. 01 10 2004 01 02 2005 shock tubes shock waves compressors stators flow instability blades Mach number transonic flow supersonic flow rotors wind tunnels vortices The trend toward higher stage loadings in axial compressors...

..., the flow distortion due to the shock wave and the shock boundary layer interaction must have a large effect on the flow in the inducer. In order to ensure the reliability of aerodynamic design technology, the actual supersonic flow phenomena with a shock wave must be ascertained using measurement...

... from the expended cooling air, film cooling configurations have to be very accurately adjusted to the local thermal and aerodynamic conditions, i.e., the local heat load. boundary layer turbulence cooling film flow Mach number supersonic flow gas turbines heat transfer 16 June...

... transonic flow subsonic flow supersonic flow pressure transducers aerodynamics strain gauges gas turbines flow simulation flow measurement vibration measurement numerical analysis computational fluid dynamics benchmark testing mechanical engineering computing stress analysis compressors...

.... , 1973 , “ Shock Boundary Layer Interaction in Transonic and Supersonic Flow ,” Lecture Series 59 Transonic Flow in Turbo-machines , von Karman Institute , Brussel. Dietrichs , H.-J. , Hourmouziadis , J. , Malzacher , F. , and Braeunling , W. , 1987 , “ Flow Phenomena...

.... 08 May 2000 01 February 2000 gas turbines shock wave effects compressors supersonic flow transonic flow aerodynamics rotors Since the 1980s, the design strategy of swept blades or sweep aerodynamics has been an important technique for the development of modern high loading...

... aircraft supersonic flow hypersonic flow turbines aerodynamics A reduction of the design surge margin of aeroengine compressors while maintaining sufficient engine dynamic and tolerance to inlet distortions is proposed to be one way of obtaining more efficient propulsion systems by either...

... 01 February 2000 gas turbines supersonic flow flow simulation Navier-Stokes equations viscosity shock waves Flow unsteadiness is a major factor in turbine performance and durability. This is especially true if the turbine is a high work design, compact, transonic, supersonic...

.... 4 . Subsonic flow enters the nozzle, chokes at the throat, and becomes supersonic. A Mach disk is seen downstream of the throat. Shock waves form in the diverging section and reflect off the nozzle walls. The fluid expands as it leaves the nozzle. Supersonic flow enters the blade, and a leading edge...