Browsing Gas Turbine Laboratory by Title
Now showing items 102-121 of 123
-
Temperature wake in an adverse pressure gradient
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1961], 1961)A study is made of the flow pattern resulting from the presence of a temperature wake in a uniform velocity field subjected to various adverse pressure gradients. Dimensionless temperature profiles and velocity profiles ... -
Thin airfoils in rotational flow
(Cambridge, Mass : Massachusetts Institute of Technology, [1965], 1965)The problem of rotational or shear flow about thin airfoils has been investigated theoretically and experimentally. The theoretical approach is based on the concept of a lifting line in a bounded shear flow whose primary ... -
Three-dimensional incompressible and compressible Beltrami flow through a highly-loaded isolated rotor
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1979], 1979)An analysis is proposed for the three-dimensional incompressible and compressible Beltrami flow through a heavily loaded isolated rotor. It is found that, in agreement with previous analyses on disturbances in swirling ... -
Three-dimensional laminar boundary layer in curved channels with acceleration
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1956], 1956)A theory is developed for two families of three-dimensional laminar boundary layers; namely, for the boundary layer on the parallel plane end walls of a curved channel with logarithmic spiral side walls, and for the boundary ... -
The three-dimensional turbulent boundary layer in a free vortex diffuser
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1958], 1958)Experimental velocity profiles and static pressure measurements were obtained from the flow in a free vortex diffuser. The purpose of the study was to obtain additional three dimensional boundary layer data and to compare ... -
Three-dimensional vorticity-induced flow effects in highly-loaded axial compressors
(Cambridge : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1980], 1980)A new analytical method is proposed for the study of flow through highly-loaded turbomachine stages. The technique is used in the present study in order to: (i) analyze the three-dimensional induced effects of the viscous ... -
Time accurate internal flow solutions of the thin shear layer equations
(Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1981], 1981)An implicit factored algorithm for the solution of the thin shear layer approximation of the Navier-Stokes equations is described and explicit boundary conditions are developed for internal flow problems. This scheme is ... -
The time dependent magnetohydrodynamic generator
(Cambridge, Mass. : Gas Turbine Laboratory , Massachusetts Institute of Technology, [1974], 1974)Introduction: Low magnetic Reynolds number magnetohydrodynamic generators as would be utilized in power plants are conceived of as steady state D.C. devices. Unsteady phenomena may exist in such generators however. ... -
Turbulent mixing in swirling flow
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1978], 1978)The effect of swirl on the mixing of two gas streams of the same density in coaxial annular geometry has been examined. The flow is studied via a fluorescent tracer, 2-3 biacetyl. Through direct excitation, collisional ... -
A two-dimensional design method for highly-loaded blades in turbomachines
(c1983, c1983)A practical design method for highly-loaded blades in an isolated cascade is presented in this thesis. The flow is assumed to be incompressible and inviscid. The upstream inlet flow condition is taken to be uniform. The ... -
Two-dimensional transonic aerodynamic design and analysis using the Euler equations
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1986], 1986)A method is developed for the solution of the steady two-dimensional Euler equations with viscous corrections for transonic design and analysis problems. The steady finite volume integral equations are formulated on an ... -
Unconventional blade design for compressors
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1969], 1969)One of the factors causing the low efficiency of axial flow compressors operating at decreased flow rates is the flow separation at blade extremities. To postpone this tendency to separate to lower flow rates, compressor ... -
Uniform-inlet three-dimensional transonic Beltrami flow through a ducted fan
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine Laboratory, [1977], 1977)Introduction: This report is a continuation of a line of analytical treatment of three dimensional flows in compressor or ducted fans. In the earlier theories [1,2,9,10], the blade row is modelled as a set of spinning ... -
UNSFLO : a numerical method for the calculation of unsteady flow in turbomachinery
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1991], 1991)Introduction: There are four principal sources of unsteadiness in a single stage of a turbomachine in which there is one row of stationary blades (stators) and one row of moving blades (rotors). As shown in Fig. 1.1, ... -
UNSFLO : a numerical method for unsteady inviscid flow in turbomachinery
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, 1988, 1988)Introduction: There are four principal sources of unsteadiness in a single stage of a turbomachine in which there is one row of stationary blades (stators) and one row of moving blades (rotors). As shown in Fig. 1.1, ... -
Unsteady radial transport in a transonic compressor stage
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1989], 1989)A technique, based on the operation of a dual-hot wire-aspirating probe with frequency response of at least 18 kHz and uncertainty less than 0.005 to full scale in mass fraction units, has been developed to measure time ... -
Upstream history and apparent stress in turbulent boundary layers
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine Laboratory, [1966], 1966)A comprehensive experimental and analytical study specifically designed to investigate upstream history and apparent stresses in incompressible, two-dimensional, turbulent boundary layers has been conducted. Hot-wire ... -
Vortex decay in a conical diffuser
(Cambridge, Mass. : b Gas Turbine Laboratory, Massachusetts Institute of Technology, [1964], 1964)The behavior of vortex flow in a conical diffuser has been studied in this report. The flow considered here is a steady, incompressible, axially symmetric one. The present experimental investigation has resulted in the ... -
Wake behavior downstream of a transonic compressor rotor
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, 1974, 1974)Measurements of the static pressure resolved in radial and axial directions downstream of a transonic compressor rotor have been harmonically analyzed. The investigation is part of a program addressing the behavior of ... -
Wake induced blade forces in turbo-machines
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1962], 1962)The wake interaction problem in a turbo-machine has been simulated in a water table. The pressure distribution over a compressor blade during the passage of a wake shed by an upstream wake generator has been determined ...
