Abstract
Abstract In industrial applications, especially in oil and gas, orifice meters are the most widely used either upstream or downstream in the processing lines. Over many decades, the used of orifice meters was satisfactory to the users, however, particularly for wet gas applications, orifice plates suffers a few problems when it comes to the mechanical reliability of the system when liquid surges hit the plates and risk to damage them. In the present paper, a design modification to the orifice plate is proposed to overcome the liquid surge effect. The system is investigated numerically by the use of a Lattice Boltzmann approach. The numerical results obtained in the modified system are compared to the classical orifice plate arrangement for different β values and Reynolds numbers. The study has demonstrated that adding a rim to the upper part of the orifice plate helps bleeding the excess of liquid during a liquid surge without compromising the quality of the differential pressure measurements.
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