.... The second assumes a large channel length to height aspect ratio at relatively small seal displacements. A piecewise analytical model for compressible flow is developed here to enable predicting flow rates in valves with fluid pathways of any aspect ratio. The new model is validated by numerical studies...

... by considering this wave configuration. This model explains the 3D flow characteristics in the transonic diffuser very well. compressible flow shock wave boundary layer transonic diffuser three-dimensional flow A normal shock wave in a duct interacts with the wall boundary-layers. At high...

...Tabatabaei Hamidreza; Boroomand Masoud; Taeibi Rahni Mohammad Three-dimensional steady and unsteady (pulsating) compressible flows in a vane-less turbocharger turbine of a 1.7 liter SI engine are simulated numerically, and the results are validated experimentally using a turbocharged on-engine test...

... compressible flow CFD finite volume method When a musical instrument such as the bassoon is played, a complex interplay of physical effects create that instrument’s characteristic timbre. The double reed acts as an acoustic driver and it has a strongly nonlinear behavior. This has been investigated...

...Jung Seob Kim; Navneet Radheshyam Singh Compressible flow involves variation in the density with changes in pressure and temperature along the pipe length. This article revisits the conventional adiabatic pipe flow equation and finds a fundamental drawback in this equation. The corrected adiabatic...

... 23 12 2011 23 12 2011 bubbles compressible flow flow simulation flow visualisation numerical analysis pressure measurement two-phase flow Originally presented as Paper IMECE 2010-40509 at ASME International Mechanical Engineering Congress & Exposition, Nov. 12–18, 2010...

... compressible flow flow separation flow simulation Mach number Navier-Stokes equations numerical analysis stagnation flow subsonic flow viscosity The stall of airfoils is a basic phenomenon in aerodynamics which refers to the significant and sudden loss of lift, increase of drag, and change...

... approximately equals the exit diameter of the supersonic nozzle. 05 01 2011 22 08 2011 24 10 2011 24 10 2011 blades compressible flow confined flow flow instability flow visualisation impellers nozzles rotors shear turbulence stratified flow supersonic flow Pressure...

.... Microelectromech. Syst., 6 (2), pp. 167–178). Some flows where Ma < 0.3 are low speed compressible flows. A fresh general pressure drop model for isothermal low Mach number compressible flow in microchannels is proposed. If the pressure drop is less than 10% of the outlet pressure, the flow can be considered...

... cavitation surge flat-plate cascade locally homogeneous model CFD blades cavitation compressible flow finite difference methods flow instability fluid oscillations jets machinery pulsatile flow pumps two-phase flow vortices 21 07 2010 07 02 2011 05 07 2011 05 07...

... was identified to be as low as 0.15. Beyond this point, as the compressible flow conditions around the wing result in changed pressure distribution and separation behavior, treating the flow as incompressible becomes inappropriate and leads to consistent underprediction of lift and drag. The influence on primary...

... modeling of natural gas (NG) direct injection (DI) processes from a poppet-valve injector into a bowl-shaped combustion chamber. At high injection pressures, the gas efflux from the injector and the mixture formation processes include turbulent and compressible flow features, such as rarefaction waves...

... 6 7 8 9 ). aeroacoustics cavitation compressible flow confined flow convection finite difference methods flow simulation Mach number Navier-Stokes equations nozzles shear turbulence vortices 04 08 2009 10 06 2010 03 12 2010 03 12 2010 2010...

...Mahdi Nili-Ahmadabadi; Ali Hajilouy-Benisi; Farhad Ghadak; Mohammad Durali In this investigation, the flexible string algorithm ( FSA ), used before for inverse design of subsonic and supersonic ducts in compressible flows with and without normal shock, is developed and applied for inverse design...

... 01 2010 12 01 2010 compressible flow heat transfer iterative methods laminar flow pipe flow subsonic flow turbulence compressible flow adiabatic flow isothermal flow turbulent flow The compressible flow of fluid through circular pipes has been studied...

... thermal accommodation coefficient Subscripts comp value for compressible flow incomp value for incompressible flow noslip value for no-slip flow slip value for slip flow wall value near wall This work was supported by the National Natural Science Foundation...

... before for compressible flows ( 19 20 ) and led to limited results for compressible extrudate swell ( 9 13 ). For isothermal flows, the conservation of energy equation is not considered and the temperature does not enter into the system of equations. Substitution of the FEM approximations...

... for incompressible flow. We compare the inertial range in the computed energy spectrum with that obtained by the direct numerical simulation (DNS) and also those given by the different LES approaches. We then obtain the same homogeneous turbulence by solving the equations for compressible flow. It is shown...

...Hidemasa Takana; Kazuhiro Ogawa; Tetsuo Shoji; Hideya Nishiyama A real-time computational simulation on the entire cold spray process is carried out by the integrated model of compressible flow field, splat formation model, and coating formation model, in order to provide the fundamental data...

...Fernando F. Grinstein; Christer Fureby Recent progress in understanding the theoretical basis and effectiveness of implicit large eddy simulation (ILES) is reviewed in both incompressible and compressible flow regimes. We use a modified equation analysis to show that the leading-order truncation...