Numerical Simulation of Flow Fluid in Elbow Pipe Based on FLUENT and the Establishment of the Pressure Model

Xiao Yang Lu; Xin Guang Li; Jin Ming Liu; Xiao Li Lu; Hong Liang Zhu; Yong Zhou

doi:10.4028/www.scientific.net/AMM.713-715.39

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 713-715Numerical Simulation of Flow Fluid in Elbow Pipe...

Numerical Simulation of Flow Fluid in Elbow Pipe Based on FLUENT and the Establishment of the Pressure Model

Abstract:

According to the FLUENT simulation results of the 90°elbow pipe fluid flow condition, the influence of the pressure distribution about the variation of the flow parameters (v、P₀ 、ρ) and the geometric parameters (R、d、k=R/d、α、β) is analyzed. By using the dimensionless analysis method, on the basis of the influence of the 32 set of parameter variations on the elbow pipe wall pressure distribution regularity, the pressure qualitative function is established including the geometric parameters and the flow parameters. Through the 155 kinds of the FLUENT simulation results, the fitting software 1stOpt is used to verify the internal pressure model above and fit the undetermined coefficients. The verification shows that the model is of a higher calculation precision and the relative error isn’t exceeding 0.003%. It provides a theoretical basis to check the strength of the bend and design the pipeline with high pressure and speed.

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Periodical:

Applied Mechanics and Materials (Volumes 713-715)

Pages:

39-42

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.713-715.39

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Online since:

January 2015

Authors:

Xiao Yang Lu*, Xin Guang Li, Jin Ming Liu, Xiao Li Lu, Hong Liang Zhu, Yong Zhou

Keywords:

90° Elbow Pipe, Dimensionless Analysis, FLUENT Numerical Simulation, Pressure Model

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