Application of the Chisholm-Laird two phase flow correlation to flow of varying quality.
Eckels, Donald E.
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For the purpose of studying the effect of varying quality upon the pressure drop accompanying isothermal, two phase, two component flow 9 a horizontal, one- inch flow channel of circular cross section, into which air could be injected at various points, was designed and constructed. Preliminary tests were made using water and air injected at a single position. The resultant data confirmed the findings of Chisholm and Laird for turbulent flow in a smooth tube. Tests were then conducted in which the quality, the percent mass of gas phase of the total mass flowing, was varied by injecting known amounts of air at seven injection points along the 42- foot test section. The Chisholm-Laird correlation provided pressure drop predictions to within 25% of the measured values.