scholarly journals A Two Dimensional Flow Analysis Model for Designing a Nozzle-Less Volute Casing for Radial Flow Gas Turbines

1991 ◽  
Author(s):  
H. O. Owarish ◽  
M. Ilyas ◽  
F. S. Bhinder
Keyword(s):  
Gas Turbines ◽  
Control Volume ◽  
Flow Analysis ◽  
Two Dimensional ◽  
Analysis Model ◽  
Cross Sectional ◽  
Analysis And Design ◽  
Single Entry ◽  
Two Dimensional Flow ◽  
Control Volumes

This paper describes a two dimensional model for flow analysis and design of a single entry nozzle-less volute casing for inward flow radial turbines. The model takes into account the cross-sectional shape of the casing by dividing it into a number of segments which are further sub divided into control volumes. Changes in flow properties are calculated by considering the changes in momenta of fluid in the tangential and the radial directions across each control volume. The model, has been computerized using Fortran 77 for the IBM AT or 100% compatible micro computers.

A Two-Dimensional Flow Analysis Model for Designing a Nozzle-less Volute Casing for Radial Flow Gas Turbines

1992 ◽  
Vol 114 (2) ◽  
pp. 402-410 ◽  
Author(s):  
H. O. Owarish ◽  
M. Ilyas ◽  
F. S. Bhinder
Keyword(s):  
Gas Turbines ◽  
Control Volume ◽  
Flow Analysis ◽  
Two Dimensional ◽  
Analysis Model ◽  
Cross Sectional ◽  
Analysis And Design ◽  
Single Entry ◽  
Two Dimensional Flow ◽  
Control Volumes

This paper describes a two-dimensional model for flow analysis and design of a single entry nozzle-less volute casing for inward flow radial turbines. The model takes into account the cross-sectional shape of the casing by dividing it into a number of segments, which are further subdivided into control volumes. Changes in flow properties are calculated by considering the changes in momenta of fluid in the tangential and radial directions across each control volume. The model has been computerized using Fortran 77 for the IBM AT or 100 percent compatible microcomputers.

The Two-Dimensional Flow Analysis of Continuous Spiral Reamer Bionic Structure on the Basis of ANSYS

2011 ◽  
Vol 236-238 ◽  
pp. 1576-1580
Author(s):  
Bai Qing Zhang ◽  
Hua Zhu ◽  
Mei Ying Liu
Keyword(s):  
Fractal Structure ◽  
Flow Analysis ◽  
Two Dimensional ◽  
Ansys Software ◽  
Dimensional Flow ◽  
Shape Structure ◽  
Two Dimensional Flow ◽  
Bionic Structure ◽  
Clay Materials

In order to improve the stratification of clay materials in the spiral reamer, we use "bionics method" to modify the structure of the spiral reamer, namely, to add corrugated shape structure to the cutter and hub. Through the analysis of ANSYS software, it is found that corrugated fractal structure can both improve the stratification of clay materials, and increase the yield as well.

scholarly journals Accumulation of a light non-aqueous phase liquid on a flat barrier baffling a descending groundwater flow

2012 ◽  
Vol 468 (2147) ◽  
pp. 3667-3684 ◽  
Author(s):  
A. R. Kacimov ◽  
Yu. V. Obnosov
Keyword(s):  
Two Dimensional ◽  
Heavy Fluid ◽  
Cross Sectional ◽  
Free Surfaces ◽  
New Class ◽  
Impermeable Barrier ◽  
Two Dimensional Flow ◽  
Phase Liquid ◽  
The Given ◽  
Vertical Height

The pioneering solution of Zhukovskii for a steady two-dimensional flow of an ideal heavy fluid with a nonlinear free boundary condition is extended to a Darcian flow of groundwater encumbered by an impermeable barrier. The stoss or/and lee sides of the barrier are covered by a macrovolume of a liquid contaminant. Explicit parametric equations of the sharp interface are obtained by inversion of the hodograph domain. Zhukovskii's gas-finger shape is shown to be a particular case of our new class of free surfaces. For a cap of a light liquid, partially covering the roof, from the given cross-sectional area of the cap, the affixes of the conformal mapping are found as a solution of a system of two nonlinear equations. The horizontal width and vertical height of the cap are determined. If the dimensionless incident velocity is higher than the density contrast, then the interface (cap boundary) cusps at its apex. For a relatively small velocity, the interface spreads to the vertices of the barrier, the apex zone remaining blunt shaped. We depict all the relevant domains and plot the flow nets using computer algebra routines.

scholarly journals Two-Dimensional Flow Analysis in a Darrieus-Type Water Turbine with Arbitrary-Shaped Duct.

1996 ◽  
Vol 62 (598) ◽  
pp. 2144-2150
Author(s):  
Akinori FURUKAWA ◽  
Kazuki TAKENOUCHI ◽  
Preethisri Ananda GAJANAYAKE ◽  
Kusuo OKUMA
Keyword(s):  
Flow Analysis ◽  
Two Dimensional ◽  
Dimensional Flow ◽  
Two Dimensional Flow ◽  
Water Turbine ◽  
Type Water

scholarly journals Gradually Varied Flow Computation in Structured Irrigation Networks

2021 ◽  
Vol 9 ◽  
Author(s):  
S. Suresh ◽  
K. Sridharan
Keyword(s):  
Irrigation System ◽  
Flow Analysis ◽  
Flow Distribution ◽  
Successful Implementation ◽  
Analysis Model ◽  
Irrigation Network ◽  
Analysis And Design ◽  
Network Concept ◽  
Traditional Irrigation ◽  
Entire Network

In this paper an algorithm for analysis and design of a structured irrigation network and a traditional irrigation network are developed on the basis of the gradually varied flow analysis of the flow in the entire network. The model developed brings advantages of the structured irrigation network concept and also allows the user to analyses and design the flow distribution in the entire network. Model built around the gradually varied flow analysis model with a tree network is divided into a group based on network consisting of an initial value problem and also a boundary value problem with junctions as the reconciled boundaries. The essence of the model is that it can handle several types of structures such as head regulators, duckbill weirs in the main canal, an open flume, a pipe semi module, a pipe outlet with and without a sleeve, proportional distributors and tail clusters in the offtakes. These structures are very important from the standpoint of analysis and design for successful implementation of a structured irrigation network on an existing system and also for analysis and design of a traditional irrigation system consisting of many gates and other structures. The focus of this paper is the efficacy of the water management in ensuring equitable distribution of flow at different discharges released at the head works.

Navier-Stokes Computation of Radial Inflow Turbine Distributor

1988 ◽  
Vol 110 (1) ◽  
pp. 29-32 ◽  
Author(s):  
T. C. Vu ◽  
W. Shyy
Keyword(s):  
Experimental Data ◽  
Steady State ◽  
Energy Loss ◽  
Stokes Equations ◽  
Flow Analysis ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Navier Stokes Equations ◽  
Two Dimensional Flow ◽  
Radial Inflow Turbine

A two-dimensional flow analysis of a radial inflow turbine distributor using full steady-state Reynolds-averaged Navier-Stokes equations is made. The numerical prediction of the total energy loss and the wicket gate torque is compared with experimental data. Also, a parametric study is carried out in order to evaluate the behavior of the numerical algorithm.

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