... that use a roughened-surface stator and a smooth rotor. Friction factors were obtained from measurements of the mass flow rate and static pressure measurements along the smooth and roughened surfaces. In addition, dynamic pressure measurements were made at four axial locations at the bottom of individual...

..., are not monotonic functions if the pressure ratio is kept constant. flow honeycomb structures Mach number Navier-Stokes equations seals (stoppers) surface discharges honeycomb seal leakage flow windage heating total temperature increase Since the operating temperature of the advanced gas...

...James L. Rutledge; Paul I. King; Richard Rivir Film cooling flow for reduction in heat flux to a gas turbine engine hot gas path component is generally assumed to be steady. However, unsteady film cooling may occur due to naturally occurring flow unsteadiness or may be induced intentionally...

... of the basic flow field for jets in a confined crossflow. The jets are shown entering the mainstream flow through orifices in the top duct wall. The primary independent geometric variables are the lateral spacing between similar locations of adjacent orifices S , the duct height H , and the orifice...

... that characterize the flow field within the near field region of circular apertures when being subjected to incident acoustic pressure fluctuations. In this way the fundamental process by which acoustic energy is converted into kinetic energy of the velocity field can be investigated. Experimental results...

.... In the first, the so-called Hartsel efficiency, the mainstream gas flow, and the various coolant flows to rotor and stator are assumed to expand separately and isentropically to the backpressure. In the second, it is assumed that these flows mix at constant (mainstream) gas pressure before expanding...

...) and pressure (6 atm) flows over a film-cooled flat plate. The test plate contained two sets of 35 deg film cooling holes that could be supplied with different gases, one side using air and the other nitrogen. A mixture of ethylene and argon provided a fuel rich freestream that reacted with the air film...

... June 2001 01 December 2000 01 March 2001 24 09 2002 gas turbines modelling aerospace engines compressors mechanical engineering flow fuel Gas turbines were originally designed for aircraft propulsion but are now extensively used in aero, marine, and industrial...

... and Energy , 215 , Mar., pp. 173 – 184 . Hensley, R. V., 1952, “Theoretical Performance of an Axial-Flow Compressor in a Gas Turbine Engine Operating With Inlet Water Injection,” NACA TN 2673. Gu, Y. G., and Palmer, J. R., 1986, “A Mathematical Model for Computing the Effects of Air Humidity, Fuel...

... engine degradation, namely, changes in blade surfaces due to erosion or fouling, and the effect on the blade aerodynamics; changes in seal geometries and clearances, and the effect on parasitic flows; and changes in the combustion system (e.g., which result in different pattern factors), the effects...

... and destructions of exergy in the conversion of the fuel exergy into work are illustrated by the exergy flow diagram. Bodunov, M. N., and Lokay, B. I., 1971, “The External Heat Transfer Coefficient,” High-Temperature Cooled Gas Turbines, Machinostroenye, Moscow, pp. 23–44. Szargut, J., Morris D. R...

...Marouan A. A. Nazha; Hobina Rajakaruna; Roy J. Crookes A mathematical model capable of describing the evaporation, mixing and burning characteristics of a confined reacting two-phase flow is presented. The flow field is described by solving the partial differential equations of continuity, momentum...

...V. Schramm; K. Willenborg; S. Kim; S. Wittig This paper reports numerical predictions and measurements of the flow field in a stepped labyrinth seal. The theoretical work and the experimental investigations were successfully combined to gain a comprehensive understanding of the flow patterns...