Turbulence Model Sensitivity and Scour Gap Effect of Unsteady Flow around Pipe: A CFD Study

被引：4

作者：

Ali, Abbod ^{[1
]}

Sharma, R. K. ^{[1
]}

Ganesan, P. ^{[1
]}

Akib, Shatirah ^{[2
]}

机构：

[1] Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Fac Engn, Dept Civil Engn, Kuala Lumpur 50603, Malaysia

来源：

SCIENTIFIC WORLD JOURNAL | 2014年

关键词：

LOCAL SCOUR; NUMERICAL-SIMULATION; BRIDGE PIERS; PREDICTION; PIPELINES;

D O I：

10.1155/2014/412136

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Anumerical investigation of incompressible and transient flow around circular pipe has been carried out at different five gap phases. Flow equations such as Navier-Stokes and continuity equations have been solved using finite volume method. Unsteady horizontal velocity and kinetic energy square root profiles are plotted using different turbulence models and their sensitivity is checked against published experimental results. Flow parameters such as horizontal velocity under pipe, pressure coefficient, wall shear stress, drag coefficient, and lift coefficient are studied and presented graphically to investigate the flow behavior around an immovable pipe and scoured bed.

引用

页数：11

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