Determination of Pressure Drop in Horizontal Pipes for Air – Water Two Phase Flow

Open access


The gas-liquid two-phase flow is characterized by continuous and local change of surface separation of phases and by their mutual interactions. Due to the instability of the flow, heat transfer and mass, a precise analytical approach is difficult to achieve. Despite these difficulties, efforts are underway to progress from the more frequent empirical studies to reliable analytical models. This requires an accurate research of the processes involved in the two phase flow and how they interact with one another. This paper aims to determine the pressure drop for a two-phase flow in a horizontal pipe of a heating plant. The author compares the results obtained by numerical simulation with existing results in the domain. The mixture is air-water, at an environmental temperature of 25°C.

[1] ASHRAE. (2009). Handbook-Fundamentals.

[2] M. B. Ould-Didi, N. Kattan, and J. R. Thome. (2002). Prediction of two-phase gradients of refrigerants in horizontal tubes. Int. J. Refrigeration, 25, 935-947.

[3] R. W. Lockhart and R. C. Martinelli. (1949). Proposed correlation of data for isothermal two-phase, twocomponent in pipes. Chem. Eng. Process, 45(1), 39-48.

[4] R. S. Brodkey. (1976). The phenomena of fluid motions. Dover publications, New York.

[5] O. Baker. (1954). Design of pipe lines for simultaneous flow of oil and gas. Oil and Gas J., 53, 185-190.

Mathematical Modelling in Civil Engineering

The Journal of Technical University of Civil Engineering of Bucharest

Journal Information


All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 183 183 10
PDF Downloads 71 71 7