ScholarLens Back to search
2007•Journal of Hydroelectric EngineeringRequires access

Stress analysis of Francis turbine runners based on FSI

Yongyao Luo

Open publisher page 3 citations

Abstract

Cracks occur in many large-sized turbines in short time after they are put into operation.The computational method of the stress due to the hydraulic reason is an important problem of the hydraulic machinery.In this paper,at first the CFD simulation including the spiral case,stay vane,guide vane,runner vane and draft tube at different operation points is studied,then the result of the pressure distribution on runner blade is provided for the runner structural simulation by fluid-structure interaction(FSI) method.The result indicates that the maximum stress on the runner is mainly in proportion to the turbine output.All of these will help us to analyze the fatigue and fracture of hydraulic turbine runner.

About this research paper

What this paper is about

Cracks occur in many large-sized turbines in short time after they are put into operation.The computational method of the stress due to the hydraulic reason is an important problem of the hydraulic machinery.In this paper,at first the CFD simulation including the spiral case,stay vane,guide vane,runner vane and draft tube at different operation points is studied,then the result of the pressure distribution on runner blade is provided for the runner structural simulation by fluid-structure interaction(FSI) method.The result indicates that the maximum stress on the runner is mainly in proportion to the turbine output.All of these will help us to analyze the fatigue and fracture of hydraulic turbine runner.

Why it matters

OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Cracks occur in many large-sized turbines in short time after they are put into operation.The computational method of the stress due to the hydraulic reason is an important problem of the hydraulic machinery.In this paper,at first the CFD simulation including the spiral case,stay vane,guide vane,runner vane and draft tube at different operation points is studied,then the result of the pressure distribution on runner blade is provided for the runner structural simulation by fluid-structure interaction(FSI) method.The result indicates that the maximum stress on the runner is mainly in proportion to the turbine output.All of these will help us to analyze the fatigue and fracture of hydraulic turbine runner.

Key concepts: Draft tube, Francis turbine, Hydraulic turbines, Turbine, Computational fluid dynamics, Stress (linguistics), Fracture (geology), Marine engineering

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Stress analysis of Francis turbine runners based on FSI — Research Paper | ScholarLens