403 Internal Flow of an Undershot Type Cross-Flow Water Turbine at Off-Design Points

2012 ◽  
Vol 2012.20 (0) ◽  
pp. 97-98
Author(s):  
Ryota OMIYA ◽  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Junichiro FUKUTOMI
Keyword(s):  
Cross Flow ◽  
Internal Flow ◽  
Water Turbine

scholarly journals 1929 Study on Internal Flow of an Undershot Type Cross-Flow Water Turbine

2012 ◽  
Vol 2012.18 (0) ◽  
pp. 603-604
Author(s):  
Ryota OMIYA ◽  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Tsutomu TACHIKAWA ◽  
Masao KOTERA ◽  
...  
Keyword(s):  
Cross Flow ◽  
Internal Flow ◽  
Water Turbine

0912 Effect of Flow Rate on Internal Flow of an Undershot Type Cross-Flow Water Turbine

2012 ◽  
Vol 2012 (0) ◽  
pp. 355-356
Author(s):  
Ryota OMIYA ◽  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Junichiro FUKUTOMI
Keyword(s):  
Flow Rate ◽  
Cross Flow ◽  
Internal Flow ◽  
Water Turbine

Visualization and PIV Measurement of Internal Flow of Cross-Flow Water Turbine

2021 ◽  
Vol 2021.58 (0) ◽  
pp. B043
Author(s):  
Hayato SHIKAMA ◽  
Nobuyuki FUJISAWA ◽  
Takayuki YAMAGATA
Keyword(s):  
Cross Flow ◽  
Internal Flow ◽  
Piv Measurement ◽  
Water Turbine

scholarly journals Performance and Internal Flow of an Undershot-Type Cross-Flow Water Turbine

2013 ◽  
Vol 79 (800) ◽  
pp. 521-532 ◽  
Author(s):  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Ryota OMIYA ◽  
Junichiro FUKUTOMI
Keyword(s):  
Cross Flow ◽  
Internal Flow ◽  
Water Turbine

J056051 Performance and Internal Flow of an Undershot-Type Cross-Flow Water Turbine with Straight Blades

2013 ◽  
Vol 2013 (0) ◽  
pp. _J056051-1-_J056051-5
Author(s):  
Kentarou HATANO ◽  
Ryouta OHMIYA ◽  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Junichirou FUKUTOMI
Keyword(s):  
Cross Flow ◽  
Internal Flow ◽  
Water Turbine

AERODYNAMIC MODELS APPROXIMATE FOR ESTIMATING THE BLADE PERFORMANCE OF A DARRIEUS-TYPE CROSS-FLOW WATER TURBINE

2020 ◽  
Vol 47 (1) ◽  
pp. 85-98
Author(s):  
Fatima Meddane ◽  
Tayeb Yahiaoui ◽  
Omar Imine ◽  
Lahouari Adjlout
Keyword(s):  
Cross Flow ◽  
Water Turbine

scholarly journals Attenuation of Cross-Flow Fan Noise Using Porous Stabilizers

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Huanxin Lai ◽  
Meng Wang ◽  
Chuye Yun ◽  
Jin Yao
Keyword(s):  
Cross Flow ◽  
Sound Radiation ◽  
Internal Flow ◽  
Considerable Effect ◽  
Front Wall ◽  
Performance Curve ◽  
Fan Noise ◽  
Aerodynamic Performances ◽  
The Cross ◽  
Cross Flow Fan

This paper presents a qualitative analysis of controlling the cross-flow fan noise by using porous stabilizers. The stabilizer was originally a folded plate. It is changed into a porous structure which has a plenum chamber and vent holes on the front wall. In order to investigate the influences of using the porous stabilizers, experiments are carried out to measure the cross-flow fan aerodynamic performances and sound radiation. Meanwhile, the internal flow field of the fan is numerically simulated. The results show that the porous stabilizers have not produced considerable effect on the cross-flow fan's performance curve, but the noise radiated from the fan is strongly affected. This indicates the feasibility of controlling the cross-flow fan noise by using the porous stabilizers with selected porosity.

Improvement of Torque Performance of a Vertical Axis Type Marine Turbine for a Water Current Generation System

2010 ◽  
Author(s):  
Tomoki Ikoma ◽  
Shintaro Fujio ◽  
Koichi Masuda ◽  
Chang-Kyu Rheem ◽  
Hisaaki Maeda
Keyword(s):  
Turbine Blades ◽  
Angle Of Attack ◽  
Cross Flow ◽  
Vertical Axis ◽  
Hydrodynamic Forces ◽  
Water Current ◽  
Current Channel ◽  
Marine Current ◽  
Water Turbine ◽  
Type Water

This paper describes the possibility of an improvement of torque performance and hydrodynamic forces on a vertical axis type water turbine, used for marine current generating system. The water turbine analyzed here is based on a Darrieus turbine with vertical blades. We considered possibilities of controlling the angle of attack of blades in order to improve the starting performance and to reduce energy loss during the rotation of the turbine. We used blade-element/ momentum theory in order to investigate the variations appearing in torque performance when the angle of attack were controlled. We also proved the validity of our predictions of hydrodynamic forces on the blade and the turbine, made through CFD calculation, by comparing them with the results of corresponding model tests in a current channel. In the corresponding model test we investigated not only the hydrodynamic forces on the turbine with three fixed blades, but also the inline force and the cross-flow force on the rotating turbine with three blades. Regarding the cyclic pitching of turbine blades, results suggest that significant increase in average turbine torque is possible.

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