Results 21 to 30 of about 444,288 (286)

Thermal plumes from staged multiport diffusers in a uniform quiescent environment [PDF]

, 1990
The behavior of thermal plumes discharged from staged diffusers has been investigated experimentally. A staged diffuser is a type of submerged multiport diffuser characterized by an offshore orientation of the individual nozzles.
Ng, Kit Yin
core   +3 more sources

The extremely collimated bipolar H_2O jet from the NGC 1333-IRAS 4B protostar [PDF]

, 2009
We have performed observations of water maser emission towards a sample of low-mass protostars, in order to investigate the properties of jets associated with the earliest stages of star formation and their interaction with the surrounding medium.
André, C. Codella, Cabrit, Chernin, Choi, Choi, Claussen, Claussen, Elitzur, Furuya, Furuya, Furuya, Haschick, Hirota, J. Santiago-García, J.-F. Desmurs, Jørgensen, Kaufman, Lefloch, Looney, M. Tafalla, Mardones, Marvel, Meehan, Moscadelli, Park, R. Bachiller, Reipurth, Rodríguez, Rodríguez, Sandell, Terebey, Wilking   +32 more
core   +2 more sources

Experimental research on the performances of water jet devices and proposing the parameters of borehole hydraulic mining for oil shale.

PLoS ONE, 2018
Oil shale is an unconventional energy source, and it is also a potential petroleum substitute. Nowadays, the energy shortage is becoming more and more prominent, oil shale has attracted the attention of energy researchers all over the world.
Jiwei Wen, Chen Chen, Urso Campos
doaj   +1 more source

Flow field characteristic of water jet with air ring protective layer under submerged environment and the orthogonal optimization of nozzle structure

Energy Science & Engineering, 2023
A water jet with an air ring protective layer is a promising rock‐breaking and cutting rate improvement method in submerged environment, such as oil–gas drilling. The jet flow field characteristic determines the jet impinge performance and is affected by
Liang Zhang, Qingjie Qi, Tianfang Ma, Lifeng Sun, Yue Wang, Jiamei Chai   +5 more
doaj   +1 more source

Research progress and prospect of high pressure water jet coal breaking mechanism

Meikuang Anquan, 2022
The research on coal breaking mechanism by high-pressure water jet can provide theoretical basis for water jet equipment manufacturing and construction technology research.
ZHAO Yueran, JIANG Wenzhong, JIN Peng, DU Feng, PEI Yue, YUAN Shengqiu   +5 more
doaj   +1 more source

Water-Jet Erosion of Grade-A Ship Steel: Experimental Research

Shock and Vibration, 2021
A water-jet erosion test was carried out on grade-A ship steel to study the interaction and erosion mechanism of the water jet on the steel surface. When the water jet impacted, a STSS-1 stress-detection module was used to collect the dynamic strain ...
Yupeng Cao, Yue Zhang, Weidong Shi, Hua Lu, Linwei Tan, Yongfei Yang   +5 more
doaj   +1 more source

Hydrodynamic effects of hybrid nanofluid jet on the heat transfer augmentation

Case Studies in Thermal Engineering, 2023
In industrial and energy systems, precise temperature control is indispensable. This study investigates the impact of hybrid nanofluids and certain jet hydrodynamic effects on enhancing the cooling efficiency on a heated copper surface.
Emmanuel O. Atofarati, Mohsen Sharifpur, Josua Meyer   +2 more
doaj   +1 more source

Numerical investigation of internal flow characteristics in an azimuth waterjet propulsion at different ship speeds

Applied Ocean Research
Azimuth waterjet propulsion is a special kind of waterjet propulsion, which is installed flush with the bottom of hull and 360 deg steerable. It is widely used in ships to broaden navigation range, enhance adaptability in shallow water area and improve ...
Peng Yan, Ruizhi Zhang, Kunyu Meng, Hao Geng, Jiajian Zhou, Yan Zhang, Jianping Chen   +6 more
doaj   +1 more source

THE ASSESSMENT OF PROPERTIES FOR SELECTED FACTORS IN ABRASIVE WATER JET PROCESS

Acta Metallurgica Slovaca, 2015
The article presents the current conditions of abrasive water jet cutting process and factors relative to the quality of cutting surface. The main goal of research was to evaluate the assessment of the cutting depth, corrugated bottom cutting edge and ...
Anna Sunova, Roman Sun, Emil Spišák, Mária Franková   +3 more
doaj   +1 more source

Experimental investigation of two-phase flow evolution in a high-speed submerged water jet with air ventilation

Journal of Fluid Science and Technology, 2023
In order to improve the submerged cutting performance of water abrasive suspension jet an experimental investigation on the two-phase flow structure of submerged water jet with semi-coaxial air ventilation is conducted by the method of high-speed camera ...
Guoyi PENG, Yusuke MUKAIYAMA, Ruijia CAO, Yasuyuki OGUMA, Hui QUAN   +4 more
doaj   +1 more source