Showing papers in "International Journal of Heat and Fluid Flow in 1983"

TL;DR: In this article, the effect of sound on the flow around plates with semicircular or square leading edges and square trailing edges located in a low turbulence open jet has been studied, and the length of the leading edge separation bubbles associated with square leading edge plates was found to oscillate.

TL;DR: In this article, a two part review covers experiments examining the effects of blade tip gap encountered in turbomachines and the methods by which the synthesized data are currentl used in turbine turbomachine design and analysis.

TL;DR: In this article, a numerical model is developed to predict the steady-state and transient behavior of forced-convection boiling two-phase flow in a single channel, which is based on the assumption of homogeneous twophase flow and thermodynamic equilibrium of the phases.

TL;DR: In this article, the sound velocities of water, ammonia, Freon-12, and isobutane in two-phase mixtures in thermodynamic equilibrium were computed.

TL;DR: In this article, the influence of buoyancy on turbulent heat transfer to a liquid metal flowing in a vertical pipe is considered and a theoretical model is presented which provides a criterion for the conditions under which such influences become significant and which predicts the impairment of heat transfer for upward flow and enhancement for downward flow.

TL;DR: In this paper, the authors studied the heating characteristics of various Hartmann-Sprenger tubes with the view to using the device as a fluidic igniter, and obtained a temperature of 300°C with nitrogen, after 6.9 ms with argon and after 1.7 ms with helium.

TL;DR: In this paper, a theoretical study of diffusive deposition of nucleated fog droplets on a low-pressure steam turbine blade operating between terminal conditions 0.23 bar, 3% wetness and 0.10 bar is presented.

TL;DR: In this paper, an experimental study of flow behavior at the inlet of a vaneless diffuser of a centrifugal compressor is presented. Butts et al. measured the flow behavior of a crossed hot-wire probe with inlet flow coefficients ranging from 0.006 to 0.019 at different Reynolds numbers.

TL;DR: In this paper, the authors investigated whether the introduction of a circumferential velocity component can produce worthwhile improvements in the performance and eliminate flow separation in wide angle conical diffusers.

TL;DR: In this paper, hotwire measurements are presented of the onset of instability in developed axial flow and in both developing and developed tangential flow caused by inner cylinder rotation in concentric annuli of radius ratio N of 0.909, 0.809 and 0.565 between 86 and 2000.

TL;DR: In this paper, the effect of variable viscosity and viscous dissipation for heated developing laminar flows in circular tubes have been investigated, covering a comprehensive range of input data for the case of constant wall heat flux.

TL;DR: In this paper, the generalized Pythagoras theorem is used to derive new forms of formulae for configuration factors in cylindrical and conical channels, and the equations are then approximated by an exponential function which simplifies the calculation of radiation heat transfer in nonisothermal enclosures.

TL;DR: In this article, the authors show that instability is possible above a characteristic disturbance wavelength which is proportional to the jet thickness, and that transition occurs when the fluctuating time period of the unstable (inviscid) wall jet is of the same order as the viscous diffusion time normal.

TL;DR: A fully implicit algorithm to time integrate the equations of 2-D compressible viscous flow allows more economical solution of given flows than existing explicit methods and also allows more difficult problems to be attempted using available computer resources.

TL;DR: In this paper, a simulation method employing uranine particles entrained in air and flowing through a cascade of full-sized low-pressure steam turbine blades was used to predict the deposition of droplets in the sub-micron size range, when discouraged by thermophoresis forces.

TL;DR: In this paper, a new characteristic approximation to the boundary conditions, required in the solution of gas flow problems by the Law-Wendroff method is presented, and the accuracy of this and other currently used methods is assessed by a comparison with the exact solutions of two test problems.

TL;DR: In this article, the time necessary for steam to revert from a series of initial degress of supercooling to thermodynamic equilibrium and the resulting fluid parameters have been tabulated.

TL;DR: In this article, a finite-volume method has been developed for the calculation of transonic, potential flows through 3D turbomachinery blades with complex geometries, where the exact transonic potential flow equation is solved on a mesh constructed from small volume elements.

TL;DR: In this article, an exact solution of the complete Navier-Stokes equations for incompressible flow has been developed to study the development of fluid flow between parallel plates, in the form of a convergent infinite series and a numerical solution for Reynolds numbers of 10 and 500.

TL;DR: In this paper, a tube designed to yield the peripheral variation of heat transfer coefficient without interfering with the nucleation site density was used to estimate the variation of mean bubble layer thickness and mean velocities with angle.

TL;DR: In this article, a generalization of Callendar's equation for dry steam is used to calculate density to ± 0.5% and temperature to ±0.8°C from enthalpy and pressure over the range 50 −200 bar and from saturation to 690°C.