Abstr:Combining/dividing flow in Y junction: Difference between revisions
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[[Description_AC3-10|Description]] [[Test Data_AC3-10|Test Data]] [[CFD Simulations_AC3-10|CFD Simulations]] [[Evaluation_AC3-10|Evaluation]] [[Quality Review_AC3-10|Qulaity Review]] [[Best Practice Advice_AC3-10|Best Practice Advice]] [[Related UFRs_AC3-10|Related UFRs]] | |||
==Application Area 3: Chemical & Process, Thermal Hydraulics & Nuclear Safety== | ==Application Area 3: Chemical & Process, Thermal Hydraulics & Nuclear Safety== | ||
Revision as of 08:02, 17 September 2008
Description Test Data CFD Simulations Evaluation Qulaity Review Best Practice Advice Related UFRs
Application Area 3: Chemical & Process, Thermal Hydraulics & Nuclear Safety
Application Challenge AC3-10
Abstract
This application challenge focuses on the prediction of pressure losses and head loss coefficients for water flowing in a Y-junction. A series of tests has been carried out under both convergent and divergent flow conditions, and at various splits of flow in the two minor branches. The flow rates used in the major branch covered an approximate Reynolds number range of 5x105 to 1.2x106.
The Y-junction has an included angle of 50 degrees between the two minor branches, and the internal geometry has been optimised.
Flow behaviour in pipe junctions is relevant to many industrial applications. At certain flow rate ratios the pressures in the Y-junction give rise to ‘negative’ differential pressures. CFD can provide an insight into the reasons behind this.
In this application challenge the design or assessment parameters (DOAPs), are the differential pressures between the legs of the Y-junction.
Contributors: Alan Stevens - Rolls-Royce Marine Power, Engineering & Technology Division