Showing papers in "International Journal of Heat and Fluid Flow in 1980"

TL;DR: In this article, a numerical method for the solution of two-dimensional two-phase flows of steam is described and compared with two sets of experimental results in nozzles and the agreement obtained is satisfactoryy.

TL;DR: In this article, the concept of exergy is used to define criteria of performance of thermal plants and a number of examples of application of steadily operating plants of open and closed type are considered and an expression for the energy balance for the general case of a control region undergoing a nonsteady process with chemical reaction is derived.

TL;DR: In this paper, a finite-difference procedure was used to predict the flow distribution in parallel and reverse flow manifold systems by a one-dimensional elliptic formulation, where an iterative numerical scheme solved the differential equations for momentum in the longitudinal direction and continuity.

TL;DR: In this paper, the concepts applicable to a method of thermodynamic analysis known as exergy analysis are defined and discussed, and expressions are obtained for exergy components of a steady stream of matter and the relationship between the exergy of a constant-time steady stream and that of a closed system is derived.

TL;DR: In this article, the authors investigated naturally occurring Gortler vortices in the laminar concave-surface boundary layers of water channels with 90° bends and presented the distribution of streamwise and spanwise velocities supported by flow visualization.

TL;DR: In this paper, a new throughflow calculation method using the time marching numerical technique is presented and compared with other prediction methods for a low hub: tip radius ratio transonic nozzle.

TL;DR: In this paper, the authors considered a semi-infinite vertical flat plate with absorption of incident radiation (solar radiation) and showed that the absorbed radiation acts as a distributed source which initiates buoyancy-driven flow and convection in the absorbing layer.

TL;DR: In this article, a small air lift pump made from 24·3 mm bore glass tube has been tested with two different air injection footpiece designs, one radially inwards, and the other axially at inlet to the riser.

TL;DR: In this article, improved equations for predicting two-phase pressure drop in horizontal flow of two phase mixtures across tube banks are presented, and the authors also present an improved equation for predicting the two phase pressure drop.

TL;DR: In this paper, it was shown that heat transfer through the outer annular surface had a greater effect on the radial velocity profile than on the axial or tangential, but in the narrow gap case only.

TL;DR: In this article, a 3 hole cobra probe was used to investigate the effect of skewed inlet boundary layer on the flow in the exit plane and on the suction surface of an annular turbine cascade.

TL;DR: In this paper, the stability of flow in a concentric annulus formed by rotating cylinders is well understood, but there is little information concerning the transitions which occur after the onset of spiral vortex flow.

TL;DR: In this article, an automatic image analysis system was developed, and used initially for obtaining size distributions of droplets in two-phase flows from multiple photographs with sub-microsecond exposure.

TL;DR: In this paper, a theoretical analysis of combined forced and free convection heat transfer for turbulent flow is presented, with emphasis given to supercritical fluids, where the buoyancy force has been found to cause a deterioration in the heat transfer.

TL;DR: In this article, the results of an experimental investigation of four different, incompressible, transitional boundary layer situations are presented, and experiments were carried out in zero pressure gradient conditions and transition was initiated from two-and from three-dimensional provoking agents.

TL;DR: In this article, it was shown that in an annular cascade, secondary flow occurs not only as the result of turning a shear flow, but also from the departure of the exit flow from a free-vortex condition.

TL;DR: In this paper, the effect of flow velocity, cathode voltage, and cathode diameter on bubble formation and the quality of the thymol blue pattern was investigated, and the time of bubble damage, i.e., the interval preceding the destruction of the blue pattern, was measured and reported.

TL;DR: In this article, two relatively new finite-difference explicit methods, Alternating Direction Approximation and the Dufort and Frankel scheme, have been compared for digital simulation of counterflow thermal regenerators.

TL;DR: In this article, the effects of the variations of c p, k, ϱ, and μ separately and in combination for ranges of Re and Pr were investigated for turbulent flow through smooth pipes with moderate property variations.

TL;DR: In this paper, a time marching method for calculating non-uniform unsteady two-dimensional flow through a blade passage is presented, and various problems encountered in extending time marching techniques into this field are examined.

TL;DR: In this paper, a series of experiments is described in which an uncambered aerofoil, set at a constant incidence was traversed incrementally through a range of combined stagnation temperature/stagnation pressure distortions.

TL;DR: In this article, the numerical stability of the types of calculation schemes used to compute three-dimensional compressible flow through turbomachine blade rows is examined using one-dimensional Fourier analysis.

TL;DR: In this article, a wet steam tunnel was constructed to simulate the ineteraction of liquid and vapour in order to investigate the nature and origin of static electrification phenomena which occur within wet steam turbines.

TL;DR: In this paper, the growth of the turbulent boundary layer over a flat plate rotating about an axis parallel to the leading edge is considered in which the axial length (or span) is contained between rotating radial end-plates (the hub and shroud, in effect of a centrifugal impeller).

TL;DR: In this paper, a modified stability criterion is derived that links the stability parameter with the stall cell speed and number of axial compressor blades, and the analysis of the response of the flow to an imposed pressure discontinuity within the blade row is performed.

TL;DR: In this paper, the effect of volume relaxation on elastohydrodynamic lubrication (EHD) is examined using experimental viscosity data obtained in a simple viscometric flow.