Study on Internal Flow of an Undershot-Type Cross-Flow Water Turbine
-
- NISHI Yasuyuki
- 茨城大学 工学部
-
- INAGAKI Terumi
- 茨城大学 工学部
-
- OMIYA Ryota
- 茨城大学 大学院
-
- FUKUTOMI Junichiro
- 徳島大学 大学院 ソシオテクノサイエンス研究部
Bibliographic Information
- Other Title
-
- 下掛け式クロスフロー水車の内部流れに関する研究
- シタ カケ シキ クロスフロー スイシャ ノ ナイブ ナガレ ニ カンスル ケンキュウ
Search this article
Description
The aim of this study is to develop an ultralow-head water turbine for an open channel, such as an irrigation channel, in order to effectively use hitherto unused hydropower energies. By focusing on a cross-flow runner, we eliminated the casing and used the application as a water turbine(undershot-type cross-flow water turbine)for an open channel. We investigated the performance and internal flow of the water turbine at a constant flow rate through an experiment and computational fluid dynamics(CFD)analysis. As a result, the following facts became clear. The performance and internal flow of the proposed water turbine with a free surface can be predicted to a certain extent by CFD analysis. At the best-efficiency-point rotational speed, θ=21-91° is the first-stage inlet area and θ=91-132° is the second-stage outlet area on the outer circumference of a runner. Moreover, on the inner circumference of the impeller, θ=48-109° is the first-stage outlet area and θ=109-141° is the second-stage inlet area.
Journal
-
- Turbomachinery
-
Turbomachinery 41 (1), 51-57, 2013
Turbomachinery Society of Japan
- Tweet
Details 詳細情報について
-
- CRID
- 1390282679521047552
-
- NII Article ID
- 130005067928
- 10031140205
-
- NII Book ID
- AN00004836
-
- ISSN
- 18802338
- 03858839
-
- NDL BIB ID
- 024180118
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL Search
- CiNii Articles
-
- Abstract License Flag
- Disallowed