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Erosion Rate Correlations Of A Pipe Protruded In An Abrupt
Pipe
Contraction
Habib, MA; Badr, HM; Ben-Mansour, R; Kabir, ME
PERGAMON-ELSEVIER SCIENCE LTD, INTERNATIONAL JOURNAL OF IMPACT
ENGINEERING; pp: 1350-1369; Vol: 34
King Fahd University of Petroleum & Minerals
http://www.kfupm.edu.sa
Summary
Erosion is one of the most serious problems in various gas and liquid flow passages
such as flow in pipes, pumps, turbines, compressors and many other devices. Sand
presence causes loss of pipe wall thickness that can lead to pipe erosion, frequent
failures and loss of expensive production time. The importance of this problem is
mainly due to many related engineering applications, viz. heat exchangers. In order to
reduce the frequency of such pipe erosions, caps in the form of replaceable pipes are
protruded in the sudden contraction regions which are exposed to most of the serious
erosion rates. In the present work, numerical investigation of the erosion of a pipe
protruded in a sudden contraction is presented. The turbulent, steady, 2-D axi-
symmetric flow inside an axi-symmetric abrupt contraction pipe with a pipe
protrusion embedded in it was solved by steady-state time averaged conservation
equations of mass and momentum along with two equation model for turbulence.
Particles are tracked using Lagrangian particle tracking. An erosion model was
employed to investigate the erosion phenomena for the given geometry. The influence
of the different parameters such as the inlet flow velocity (3-10 m/s), the particle
diameter (10-400 mu m), the protruded pipe geometry (thickness T = 1-5 mm and
depth H = 2-5 mm) and the pipe contraction ratio (Cr = 0.25-0.5) on the erosion of
pipe protrusion was investigated. Correlations for the influence of inlet flow velocity,
depth and thickness of the protruded pipe on the erosion rate are presented. (c) 2006
Elsevier Ltd. All rights reserved.
Copyright: King Fahd University of Petroleum & Minerals;http://www.kfupm.edu.sa
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©
References:AHLERT KR, 1994, THESIS U TULSAASTARITA G, 1968, IND ENG CHEM FUND, V7, P27BADR HM, 2002, 6 SAUD ENG C DHAHR K, V5BADR HM, 2005, COMPUT FLUIDS, V34, P721, DOI10.1016/j.compfluid.2004.05.010BENEDICT RP, 1966, T ASME A, V88, P73BLATT W, 1989, CORROSION, V45, P793BULLEN PR, 1986, DETERMINATION PIPE C, P111BULLEN PR, 1996, P I MECH ENG, V210, P171CLARK HMI, 1992, INT J IMPACT ENG, V12, P15DURST F, 1984, APPL MATH MODEL, V8, P101EDWARDS JK, 1998, ASME FLUIDS ENG DIVFOSSA M, 1998, INT J HEAT MASS TRAN, V41, P3807GERAMITAJABADI H, 1985, THESIS KINGSTON POLYHABIB MA, 2004, INT J NUMER METH FL, V46, P19, DOI 10.1002/fld.744JAYANTI S, 1991, APS0099 AEA PETR SERKAYS WM, 1950, T ASME, V72, P1067LU QQ, 1993, INT J MULTIPHAS FLOW, V19, P347MCLAURY B, 1996, THESIS U TULSAMENG H, 1991, ASME FLUIDS ENG DIVI, V118, P183MICHAELIDES EE, 1997, J FLUID ENG-T ASME, V119, P233MORSI SA, 1972, J FLUID MECH, V55, P193ODAR F, 1964, J FLUID MECHANICS 2, V18, P302PATANKAR SV, 1980, NUMERICAL HEAT TRANSPICART A, 1986, INT J MULTIPHAS FLOW, V12, P237POSTLETHWAITE J, 1993, CORROSION, V49, P850SAFFMAN PG, 1965, J FLUID MECH, V22, P385SALAMA MM, 1983, OFFSH TECHN C OTC TXSHIH TH, 1995, COMPUT FLUIDS, V24, P227SHIRAZI SA, 1995, J PRESS VESS-T ASME, V117, P45TU JY, 1996, ASME FED, V236, P751WALLACE MS, 2000, P 2000 ASME FLUIDS EWALLACE MS, 2004, WEAR, V256, P927WANG J, 2003, T ASME, V125WILCOX DC, 2000, TURBULENCE MODELINGWOOD RJK, 2004, WEAR, V256, P937
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Copyright: King Fahd University of Petroleum & Minerals;http://www.kfupm.edu.sa