THE STUDY OF LAMINAR AND TURBULENT FLOW IN TURBINE TYPE OF FLOW METERS

Abstract

The paper studies the operation of a turbine-type flow meter under various operating modes. In the industry, flow measuring devices are widely used on oil and gas platforms and terminals. In the processes of production, processing and transportation of oil and gas, which is a strategic raw material, strict state control of its consumption is carried out precisely by means of consumption measurement. A performance study has been carried out for turbine - type gas flow meters under laminar and turbulent gas flow conditions .. One of the main factors that cause damage to the mechanical parts of turbine and rotor type gas flow meters during operation was the study of flow changes. The proposed method to prevent flow changes was considered. The principle of work of the proposed scheme is based on the connection of a flow regulator before the flow meter being tested to the same gas line. In this case, the transition of the flow from the laminar regime to the turbulent regime is prevented, as well as the rotating mechanical parts are protected from sudden rotation and damage. In ideal rotation, it is assumed that the flow through the turbine meter is uniform, incompressible, and steady, and the turbine blade rotates without friction. Under these conditions, the speed of rotation of the impeller is determined by the pitch of the turbine impeller. Keywords: turbine-type flow meter, ideal rotation, turbulent flow, laminar flow, Reynolds number.