Anomalous Reduction in Pressure Drops of the Water Flow through Micro-Orifices in High Velocity Ranges

2008 ◽  
Author(s):  
Tomiichi Hasegawa ◽  
Akiomi Ushida ◽  
Takatsune Narumi ◽  
Albert Co ◽  
Gary L. Leal ◽  
...  
Keyword(s):  
Water Flow ◽  
High Velocity ◽  
Pressure Drops ◽  
Flow Through

Pressure Drops of Water Flow Through Micromachined Particle Filters

2002 ◽  
Vol 124 (4) ◽  
pp. 1053-1056 ◽  
Author(s):  
Tzung K. Hsiai ◽  
Sung Kwon Cho and ◽  
Joon Mo Yang ◽  
Xing Yang and ◽  
Yu-Chong Tai ◽  
...  
Keyword(s):  
Water Flow ◽  
Stokes Equations ◽  
Three Dimensional ◽  
Side Wall ◽  
Micro Electro Mechanical System ◽  
Numerical Code ◽  
Power Requirement ◽  
Pressure Drops ◽  
Flow Through ◽  
Wall Profile

When the particle is in the order of microns, flow through the small opening produces a large velocity gradient, leading to high viscous dissipation. Understanding the flow field is critical in determining the power requirement. In this paper, we studied water flow through filters fabricated by micro-electro-mechanical system (MEMS) techniques. The pressure drop calculated by a three-dimensional numerical code of the Navier-Stokes equations is in a resonable agreement with the experimental data if the diameter and the side wall profile of the holes are measured with high accuracy.

HEAT TRANSFER BURNOUT IN WATER FLOW THROUGH ROUND TUBES AND ANNULI

1970 ◽  
Author(s):  
B. A. Zenkevich ◽  
P. L. Kirillov ◽  
G. V. Alekseev ◽  
O. L. Peskov ◽  
O. A. Sudnitsyn
Keyword(s):  
Heat Transfer ◽  
Water Flow ◽  
Flow Through

Modeling of Reduced Water Flow through Concrete Caused by Crystallization Technology

2006 ◽  
Vol 9 (8) ◽  
pp. 723-730
Author(s):  
Abdelaziz Al-Khlaifat ◽  
Awni Al-Otoom
Keyword(s):  
Water Flow ◽  
Flow Through ◽  
Reduced Water

scholarly journals Determination of cross-sectional void fraction in a two-phase water flow through a PVC pipe

2021 ◽  
Vol 655 (1) ◽  
pp. 012024
Author(s):  
O.H. Ajesi ◽  
M.B. Latif ◽  
S.T. Gbenu ◽  
C. A. Onumejor ◽  
M. K. Fasasi ◽  
...  
Keyword(s):  
Water Flow ◽  
Void Fraction ◽  
Two Phase ◽  
Cross Sectional ◽  
Flow Through ◽  
Pvc Pipe ◽  
Phase Water

Lattice Boltzmann simulation of water flow through rough nanopores

2021 ◽  
Vol 236 ◽  
pp. 116329
Author(s):  
Zhilin Cheng ◽  
Zhengfu Ning ◽  
Dong-Hun Kang
Keyword(s):  
Water Flow ◽  
Lattice Boltzmann ◽  
Lattice Boltzmann Simulation ◽  
Flow Through

Characterization of the water flow through concrete based on parameter estimation from infiltration tests

2006 ◽  
Vol 36 (9) ◽  
pp. 1575-1582 ◽  
Author(s):  
Vicente Navarro ◽  
Ángel Yustres ◽  
Luís Cea ◽  
Miguel Candel ◽  
Ricardo Juncosa ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Water Flow ◽  
Flow Through ◽  
Infiltration Tests

Cold Plasma Modification Effects on the Water Flow through Sintered UHMWPE Membranes

2009 ◽  
Vol 48 (2) ◽  
pp. 136-140 ◽  
Author(s):  
T. L. Leal ◽  
K. M. Souto ◽  
L. H. Carvalho ◽  
L. H. Lira ◽  
C. A. Júnior ◽  
...  
Keyword(s):  
Water Flow ◽  
Cold Plasma ◽  
Plasma Modification ◽  
Flow Through

Video imaging measurement of interfacial wave velocity in air-water flow through a horizontal elbow

2001 ◽  
Author(s):  
Amir Al-Wazzan ◽  
Cheok F. Than ◽  
Mahmoud Moghavvemi ◽  
Chia W. Yew
Keyword(s):  
Water Flow ◽  
Wave Velocity ◽  
Interfacial Wave ◽  
Video Imaging ◽  
Flow Through

Qualification and Certification of Polyester Rope for Seabed Contact

2017 ◽  
Author(s):  
Øystein Gabrielsen ◽  
Kjell Larsen
Keyword(s):  
Water Flow ◽  
Water Depth ◽  
Test Method ◽  
Mooring System ◽  
Qualification Test ◽  
Mooring Lines ◽  
Norwegian Sea ◽  
Flow Through ◽  
Full Scale Tests ◽  
Certification Requirements

The Aasta Hansteen spar in the Norwegian Sea is designed to be moored with a taut polyester rope mooring system. The water depth at the field is 1300 meters, and due to the short installation season the most efficient hookup is with pre-installed mooring lines, which require the mooring lines to be laid down on the seabed. DNV certification does not allow seabed contact for polyester ropes unless proven that no soil ingress and damage takes place. To be able to certify the ropes Statoil developed a test method including contact with soil, rope movement and forced water flow through the filter construction. Full scale tests were performed with actual rope and Aasta Hansteen soil, both in laboratory and at site. This paper discusses the certification requirements and presents adequate qualification test together with results from testing.

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