Results 301 to 310 of about 3,130,306 (355)

A Secondary Flow Calculation Method for Single-Stage Axial Transonic Flow Compressors, Including Shock-Secondary Flow Interaction

Journal of Turbomachinery, 1989
A secondary flow calculation method is presented, which makes use of the meridional vorticity transport equation. Circumferential mean flow quantities are calculated using an inverse procedure. The method makes use of the mean kinetic energy integral equation and calculates simultaneously hub and tip secondary flow development.
J. Kaldellis, D. Douvikas, F. Falchetti, K. D. Papailiou   +3 more
openaire   +1 more source

Secondary bifurcations of stationary flows

2000
Numerical investigations of stationary Taylor vortex flows with periodic boundary conditions led Meyer-Spasche/Wagner [13] to speculate that there is a curve of loci of secondary bifurcations in the (period, Reynolds number)-plane which connects two double points, i.e.
Meyer-Spasche, R., Bohlstad, I., Pohl, F.   +2 more
openaire   +2 more sources

Secondary Flow Correction for Depth-Averaged Flow Calculations

Journal of Engineering Mechanics, 1999
A secondary flow correction has been added to the depth-averaged computer program, RMA2. The program solves a transport equation for streamwise vorticity and converts it to accelerations due to secondary currents. The inclusion of these additional accelerations results in improved predictions of depth-averaged velocity.
John Finnie, Barbara Donnell, Joe Letter, Robert S. Bernard   +3 more
openaire   +1 more source

Viscous-Flow 2D-Analysis Including Secondary Flow Effects

Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, 2000
During the last few decades extremely powerful Quasi-3D codes and fully 3D Navier-Stokes solvers have been developed and successfully utilized in the design process and optimization of multistage axial-flow compressors. However, most of these methods proved to be difficult in handling and extremely time consuming.
Reinhard Mönig, Frank Mildner, Ralf Röper   +2 more
openaire   +1 more source

Adaptation of secondary flow in nearly-horizontal flow

Journal of Hydraulic Research, 1986
To implement the generation and decay of secondary flow in steady or quasi-steady nearly-horizontal flow models an approximative method is proposed which takes account of the convection of momentum...
Jan P. Th. Kalkwijk, Robert Booij
openaire   +1 more source

Secondary Flow and Atherogenesis

1988
Hemodynamic factors appear to affect atherosclerosis. Secondary flow in the aorta was studied by subjecting rabbits to constant pressure perfusion fixation and observing endothelial arrangement by scanning electron microscopy.
N. Ohyama, A. Nishiyama, T. Okamura
openaire   +1 more source

Secondary Flow in Axial-Flow Turbomachinery

Journal of Fluids Engineering, 1955
Abstract A method is presented by which one can include the principal effects of secondary flow in the design of multi-stage axial-flow turbomachinery. The method uses the conventional axial-symmetry solution as a basic flow picture from which the induced turning and radial velocities characteristic to the secondary flow can be deduced ...
openaire   +1 more source

Secondary flow due to Alfvén waves

Journal of Fluid Mechanics, 1977
Large (gigajoule) amounts of energy can in principle be stored as kinetic energy in liquid metal circulating round a torus and can be extracted at the gigawatt level by Alfvén waves propagating along an imposed axial field. A major limitation on the energy that may be so stored is the disruption of these primary Alfvén waves by secondary flows in ...
openaire   +1 more source

Method of Calculating Secondary Flow

Water Resources Research, 1971
Secondary flow plays an important role in a number of areas in hydraulics, such as sediment transport, distribution of primary flow velocity and boundary shear, flow resistance, and stream meandering. In this study, secondary currents generated in a straight, triangular open channel are investigated and used to develop a method of calculating secondary
Chao‐Lin Chiu, Teh‐Shee Lee
openaire   +1 more source

Secondary flow induced by riblets

Journal of Fluid Mechanics, 1998
The effects of riblets on one wall of a channel bounding fully developed turbulent flow are investigated. Various perturbation elements including wires, fins and slots are modelled in order to understand the effects of riblets. It is found that widely spaced riblets, fins and wires create a substantial increase in turbulent activity just above ...
Goldstein, D. B., Tuan, T.-C.
openaire   +2 more sources