Characteristic Study on Preventing Cavitation Damage of Hydraulic Structures Side-walls with High Head

您当前的位置：

首页 >

文章列表页 >

Characteristic Study on Preventing Cavitation Damage of Hydraulic Structures Side-walls with High Head

更新时间：2023-11-28

- Characteristic Study on Preventing Cavitation Damage of Hydraulic Structures Side-walls with High Head
- Advanced Engineering Sciences Vol. 38, Issue 1, Pages: 38-43(2006)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006，
扫描看全文
王海云,戴光清,杨永全.高水头泄水建筑物侧墙掺气减蚀特性研究[J].工程科学与技术,2006,38(1):38-43.

Characteristic Study on Preventing Cavitation Damage of Hydraulic Structures Side-walls with High Head. [J]. Advanced Engineering Sciences 38(1):38-43(2006)
王海云,戴光清,杨永全.高水头泄水建筑物侧墙掺气减蚀特性研究[J].工程科学与技术,2006,38(1):38-43. DOI：

Characteristic Study on Preventing Cavitation Damage of Hydraulic Structures Side-walls with High Head. [J]. Advanced Engineering Sciences 38(1):38-43(2006) DOI：

摘要

中文摘要: 工程中通常采用强迫掺气减蚀措施，防止泄水建筑物在高速水流作用下发生空蚀破坏，但在保护过流面底板的同时，忽视了对其侧墙的保护。为了减免位于高流速区域和低压区域侧墙发生空化空蚀，消除侧墙清水区，采用理论分析和物理模型试验研究方法，对龙抬头明流泄洪洞下游边墙掺气减蚀进行了研究，提出了在反弧末端加折流器（突扩）和突跌掺气方式。结果表明，采用突扩和突跌的掺气方式后，侧墙水流的出射角增大，侧空腔畅通，并直接和底空腔相连，有助于掺气坎后水舌的全断面的掺气，对侧墙和底板皆起到了很好的保护作用。

Abstract

Abstract:To prevent cavitation damage of hydraulic structures with high speed flows，forced aeration device is commonly adopted as an economical and effective engineering technique. During engineering protecting of the side walls with high speed flows and low pressure areas tend to be neglected. In paper based on theoretic study and model experiment，preventing cavitation damage of the dragon raise head spillway tunnel side walls was studied，an aerator with a sudden widen（ie. lateral deflector）and a vertical drop was put forward to bottom of anti-arc. This type aerator eliminates un-airflow area in the side-walls. The air entrainment quantity is obviously affected by lateral deflector. The lateral air chamber is an important aeration mechanism when the lateral air chamber is connected to the bottom cavity，which prevent cavitation damage of sidewalls and soleplates effectively.

关键词

高水头龙抬头泄洪洞侧墙掺气减蚀

Keywords

High headDragon-Rraise-Head free flow spillway tunnelProtecting side-walls cavition damage by aeration

references

Xiao Xingbin,Wang Caihuan,Wang Yehong.Review on study of aerators with sudden lateral enlargement and bottom drop at taint or gate region[J].Journal of Yangtze River Scientific Research Institute,2000,17(5):1-4.[肖兴斌,王才欢,王业红.弧形闸门突扩跌坎式通气减蚀研究进展综述[J].长江科学院院报,2000,17(5):1-4.]

Zhou Chi,Han Jibin,Xiao Xingbin.The problems of aerators with sudden lateral enlargement and bottom drop at taint or gate region[J].Study on Water and Electricity Engineering,1997(1):29-36.[周赤,韩继斌,肖兴斌.弧门突扩突跌掺气减蚀应注意的问题[J].水电工程研究,1997(1):29-36.]

Wu Baoqin,lu Taishan.Research for causation of erosion destroy in bottom vulua on longyang gorge[J].Northwest Water Resources and Water Engineering,2000,11(4):55-58.[吴宝琴,卢泰山.龙羊峡底孔泄水道冲蚀破坏成因探析[J].西北水资源与水工程,2000,11(4):55-58.]

Wu Baoqin,Lu Taishan.Cavitation characteristic of aerators in bottom vulua on longyang gorge[J].Waterpower Engineering Design,2000,19(4):41-43.[吴宝琴,卢泰山.龙羊峡底孔突扩掺气体型的空化特性[J].水力发电工程设计,2000,19(4):41-43.]

Regan R P,Munch A V,Schader E K.Cavitation and erosion damage of sluices and stilling basins at two high-head dams[C]// Proceeding of 13th ICOLD.1990:177-198.

CHEN CH T.Experimental studies on scale modeling in vacuum tank and mitigating cavition dam age by aeration[C]//International Symposium on Hydraulic Research in Nature and Laboratory.Wuhan,1992:256-257.

Yang Yongsen,Wu Chigong.Hydraulic and cavitating characteristics of the invent in two dimensional open channel flow[J].Journal of Chengdu University of Science and Technology,1991(3):21-28.[杨永森,吴持恭.明流隧洞反弧段水力及空化特性研究[J].成都科技大学学报,1991(3):21-28.]

Han Changhai,Wang Zhengnie.A research on bucket shapes in free level discharge tunnel[J].Science Research of Water Conservancy and Carriage,1996(2):117-125.[韩昌海,王正臬.明流泄洪洞反弧段体型的研究[J].水利水运科学研究,1996(2):117-125.]

王世夏.水工设计的理论和方法[M].北京:中国水利水电出版社,2000:117-134.

Hu Minglong.Model test on cavitation characteristic of pressure grads area[J].Advances in Science and Technology of Water Resources,1996,16(4):36-40.[胡明龙.压力梯度区空化特性试验研究[J].水利水电科技进展,1996,16(4):36-40.]

Liu Chao,Yang Yongquan.Study on cavitation-protection for sidewalls at the backward of anti-arc in spillway tunnel[J].Water Resources and Hydraulic Engineering,2000,34(9):26-28.[刘超,杨永全.龙抬头明流泄洪洞反弧段下游边墙防蚀探讨[J].水利水电技术,2000,34(9):26-28.]

Chen Changzhi,Chen Dongshu,Dong Zengnan,et al.The time-averaged characteristics of the flow passing through a gradually varied curvature bucket[J].Journal of Hydraulic Engineering,1994(9):1-9.[陈长植,陈东曙,张海平,等.曲率缓变型反弧段水流的时均特性[J].水利学报,1994(9):1-9.]

Nie Mengxi,Wu Guanggao.Effect of the lateral deflector on cavity design[J].Journal of Tsinghua Univ:Sci and Tech,2002,42(4):546-550.[聂孟喜,吴广镐.折流器对突扩突跌掺气空腔特性的影响[J].清华大学学报:自然科学版,2002,42(4):546-550.]

Nie Mengxi,Wu Guanggao.Effect of the lateral deflector on aeration in the bottom and lateral cavities of flows over spillways[J].Journal of Tsinghua Univ:Sci and Tech,2003,43(8):1116-1119.[聂孟喜,吴广镐.侧向折流器对侧空腔和底空腔掺气参数的影响[J].清华大学学报:自然科学版,2003,43(8):1116-1119.]

Xiao Xingbin.Study on aerators of flood discharge bottom outlet[J].Design of Hydropower Station,2003,19(2):85-89.[肖兴斌.泄洪深孔掺气减蚀研究[J].水电站设计,2003,19(2):85-89.]

更多指标>

Views

下载量

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

四川大学水力学与山区河流开发保护国家重点实验室四川

⁰