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Information Seminar Paper

Title

THE EFFECTS OF POLYMER SOLUTIONS ON DRAG REDUCTION IN HORIZONTAL PIPE TWO-PHASE FLOW

Writers

MOWLA D. | NADERI A.

Pages

 Start Page | End Page

Abstract

 THE EFFECT OF THE PRESENCE OF A DRAG REDUCING AGENT (DRA) ON THE PRESSURE DROP IN A HORIZONTAL PIPE COCURRENT TWO-PHASE FLOW OF GAS AND LIQUID IS INVESTIGATED IN THIS STUDY. THE EMPLOYING DRA IS AN ANIONIC POLYACRYLAMIDE. AN EXPERIMENTAL SET-UP IS ERECTED IN WHICH PRESSURE DROP IS MEASURED IN A TEST SECTION OF 10M LONG HORIZONTAL PIPE WITH AN I.D. OF 2.54 CM. BASED ON THE EXPERIMENTAL DATA WHICH ARE OBTAINED FOR DIFFERENT OPERATING CONDITIONS, A MATHEMATICAL MODEL IS PROPOSED FOR PREDICTION OF DRAG REDUCTION FOR A GIVEN POLYMER. THE PROPOSED MODEL CONTAINS A FEW PARAMETERS WHICH SHOULD BE OBTAINED FOR THE USED POLYMER. THESE PARAMETERS ARE OBTAINED FOR SUPERFLOC A-95, IN A GIVEN RANGE OF REYNOLD’S NUMBER. THE PROPOSED MODEL COULD ALSO BE USED FOR CALCULATION OF FRICTION AND MAXIMUM DRAG REDUCTION AS A FUNCTION OF DRA CONCENTRATION.

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