|
|
|
|
|
Pedro Leite Ferreira and Dídia Isabel Cameira Covas
The current paper aims at assessing the effect of the radial mesh on the description of the axial velocity in steady-state and transient conditions and at presenting the results of a new optimized equal-area mesh. For this purpose, a quasi-2D model is im...
ver más
|
|
|
|
|
|
|
|
|
|
|
M. R. Ajith Kumar, Jaan H. Pu, Prashanth R. Hanmaiahgari and Martin F. Lambert
A problem with 1-D water hammer modelling is in the application of accurate unsteady friction. Moreover, investigating the time response of fluid dynamics and unsteady turbulence structures during the water hammer is not possible with a 1-D model. This r...
ver más
|
|
|
|
|
|
|
|
|
|
|
Giuseppe Pezzinga
Water hammer flow is examined, putting into evidence that unsteady friction cannot be fully responsible for observed oscillation damping. The measured piezometric head oscillations of water hammer flow experimental tests carried out for very long time (a...
ver más
|
|
|
|
|
|
|
|
|
|
|
Florian Hermet, Nicolas Binder, Jérémie Gressier and Gonzalo Sáez-Mischlich
A preliminary analysis of turbine design, fit for pulsed flow, is proposed in this paper. It focuses on an academic 2D configuration using inviscid flows, since pressure loads due to wave propagation are several orders of magnitude higher than friction a...
ver más
|
|
|
|
|
|
|
|
|
|
|
Stanford Shateyi and Hillary Muzara
A thorough and detailed investigation of an unsteady free convection boundary layer flow of an incompressible electrically conducting Williamson fluid over a stretching sheet saturated with a porous medium has been numerically carried out. The partial go...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shihao Zhou, Peifeng Lin, Wei Zhang and Zuchao Zhu
Flow separation is undesirable and lowers the efficiency of centrifugal impellers. In this study, the evolution characteristics of separated vortices in a centrifugal impeller are studied under the off-designed flow rate condition. Unsteady Reynolds-Aver...
ver más
|
|
|
|
|
|
|
|
|
|
|
Weimin Bao, Junwei Zhou, Xiaohua Xiang, Peng Jiang and Muxi Bao
As a critical parameter of the steady uniform friction model, the roughness coefficient changes with flow unsteadiness in flood events; i.e., the flow conditions of the stream segment significantly affect the flow resistance. In this study, a modified fo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Dr. D. RAJU
The present paper is concerned with the analytical solution of one-dimensional unsteady laminar boundary layer MHD flow of a viscous incompressible fluid past an exponentially accelerated infinite vertical plate in presence of transverse magnetic field w...
ver más
|
|
|
|
|
|
|
|
|
|
|
Silvia Meniconi, Bruno Brunone and Matteo Frisinghelli
In the last decades several reliable technologies have been proposed for fault detection in water distribution networks (DNs), whereas there are some limitations for transmission mains (TMs). For TM inspection, the most common fault detection technologie...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fan Yang, Gangyan Li, Jian Hua, Xingli Li and Toshiharu Kagawa
This study aims to propose an analysis method for resolving the pressure response of a pneumatic brake circuit considering the effect of a transmission pipe. Pneumatic brake systems (PBS) are widely used in commercial vehicles. The pressure response char...
ver más
|
|
|
|
|
|