Mathematical simulation of fluid flow and analysis of flow pattern in the flow path of low-head Kaplan turbine
Journal Title: Журнал інженерних наук - Year 2016, Vol 3, Issue 2
Abstract
The results of numerical investigation of spatial flow of viscous incompressible fluid in flow part of Kaplan turbine PL20 Kremenchug HPP at optimum setting angle of runner blade φb = 15° and at maximum setting angle φb = 35° are shown. The flow simulation has been carried out on basis of numerical integration of the Reynolds equations with an additional term containing artificial compressibility. The differential two-parameter model of Menter (SST) has been applied to take into account turbulent effects. Numerical integration of the equations is carried out using an implicit quasi-monotone Godunov type scheme of second - order accuracy in space and time. The calculations have been conducted with the help of the software system IPMFlow. The analysis of fluid flow in the flow part elements is shown and the values of hydraulic losses and local cavitation coefficient have been obtained. Comparison of calculated and experimental results has been carried out.
Authors and Affiliations
A. Rusanov, O. Khorev, D. Kosyanov, P. Sukhorebryi, N. Kurskaya
Keywords
Related Articles
- EP ID EP237770
- DOI -
- Views 132
- Downloads 0
Theoretical research of some parameters of contact area of wheel cutting surface and workpiece at flat face grinding with preliminary inclination of spindle axis
Theoretical researches that have made it possible to obtain the analytical dependences connecting the parameters of contact area of wheel cutting surface such as length, width, arc length, form deviation of flat surface...
Research of Working Process of Vortex Expansion Machine with Side Channel
At gas distribution stations, a large amount of energy of compressed gases is lost. In such cases, the useful power is obtained with the aid of a turboexpander. The problem is that there is a great need for turboexpander...
Analytical determination of the frequency of short circuits of the arc at surfacing in gas dioxide with welding pool mechanical oscillations
A hypothesis has been put forward that it is possible to reduce the degree of splashing when sur-facing into carbon dioxide due to the setting of the frequency characteristics of the oscillation of the weld pool. Equatio...
The decrease in technogenic load on the environment during the process of absorption of ammonia in soda industry
The article studies the effectiveness of implementation of existing equipment of soda production absorbers for ammonia cleaning from gas emissions. It identifies the major sources of ammonia emissions in the soda ash pro...
Big Data Approach Application for Steel Pipelines in the Conditions of Corrosion Fatigue
This paper presents results of the use of Big Data approach and neural network for the pipelines diagnosis problem. In this case the pipeline is in the conditions of crack growth of corrosion fatigue and exposed to hydro...