... that generated this significant enhancement to the compressor operating range. In order to acquire the desired understanding, experimental data is presented to validate the Computational Fluid Dynamics (CFD) model and a detailed numerical investigation is presented to explain the changes in the flow field within...

.... A combination of specially designed boundary layer total pressure probe rake measurements, FRS optical rake measurements, and computational fluid dynamics (CFD) results in the inlet of a Honeywell TFE731-2 turbofan are presented. Results show that all three techniques (FRS, probe, and CFD) match within...

... boundary layer measurements. Both experiments and computational fluid dynamics (CFD) show large variations of transition location along the vane span with strong influences from endwalls and turbine outlet conditions. Both agree well with traditional transition onset correlations near midspan and show...

... optimization. The aim of this paper is to demonstrate the feasibility of using three-dimensional full assembly unsteady Reynolds-averaged Navier–Stokes (URANS) CFD for modeling surge cycles of an eight-stage high-speed compressor rig. Results from this work show stalling of the mid-stages is the surge trigger...

... in the J ournal of T urbomachinery . 03 10 2019 21 02 2020 21 02 2020 29 07 2020 turbomachinery compressors CFD manufacturing variations fan compressor and turbine aerodynamic design Geometric variations induced by a manufacturing process are typically...

...: Li He. 28 11 2018 27 06 2019 28 06 2019 aeromechanical instabilities compressor forced response CFD multi-row Flutter and forced response in turbomachinery can lead to high cycle fatigue failure. Flutter occurs when the vibration-dependent forces cause a negative...

... were designed. In general, it was found that circular cross section volute with radial diffuser provides higher head and efficiency. Moreover, the minimum radial force occurs at higher flowrate in circular volute geometry comparing to rectangular cross section volute. low-specific speed pump CFD...

... for the computationsl fluid dynamics (CFD) validation purposes and, finally, a wider range of working conditions (Re = 10,000, 20,000, and 40,000, Ro = 0.2, 0.4, and 0.6) were numerically explored. The selected geometry (a smooth radial channel) is rather simplified compared to modern leading edge cooling cavities...

... turbulence convection cooling geometry modification experiment paint injection CFD conjugate heat transfer As a numerical method for heat transfer evaluation, conjugate heat transfer calculations became more important recently. While an early work by Perelman ( 17 ) was limited...

... concepts for possible optimization were derived. Complementary numerical simulations were carried out using the commercial computational fluid dynamics (CFD) code ANSYS CFX . The motivation was to evaluate whether CFD can be used as an engineering design tool in the optimization of the heat shield...

... − 10 deg to + 14.5 deg relative to design incidence. 05 04 2008 21 04 2008 10 04 2009 aerodynamics blades gas turbines turbomachinery MISES boundary layer method 2D cascade validation transonic off-design HPT incidence loss CFD Customers who purchase gas...

... the rotor cavity and strong radial pressure gradients opposing inflow. In the present work the relative performance of a series of noncircular offtake passages has been assessed using CFD techniques. The results of this work demonstrate the degree of control that may be exercized over swirl uptake, which...

... vortices computational fluid dynamics Unsteady Flow Computation Forced Response Turbomachinery Turbine Turbopumps CFD Design Turbines for liquid rocket engine applications are extreme in many aspects depending on the engine type and application. To reach high rocket engine performance...