Numerical study of the flow field of a Venturi flowmeter. The Classical Venturi Flowmeter manufacturer tells you that with the rapid development of industrial information technology, people have put forward higher and higher requirements for its measurement accuracy, real-time monitoring, and other performance. Many units and scholars have carried out research on the Venturi flowmeter flow field. Deep research. The Classical Venturi Flowmeter manufacturer tells you that a three-dimensional geometric model is established based on the structural drawings of the venturi of the secondary air duct and the venturi of the tertiary air duct provided in the engineering application. The fully structured hexahedral mesh is used to calculate the following through numerical simulation. in conclusion.

(1) The Classical Venturi Flowmeter manufacturer tells you that the length of the throat, the diameter of the throat, and the inlet wind speed are the main factors that affect the resistance of the Venturi. Reducing the length of the throat pipe and increasing the diameter of the throat pipe can greatly reduce the resistance, especially under the conditions of a large flow rate; under the condition that other conditions remain unchanged, the inlet cone angle and outlet cone angle are taken as 22° and 11°, respectively. When the resistance reaches the minimum value;
(2) The Classical Venturi Flowmeter manufacturer tells you that the flow field structure of the Venturi tube is uniform, and the static pressure value in the entire length of the throat is much lower than the inlet static pressure value so that the resistance of the airflow through the entire Venturi tube is lower than the inlet static pressure value. Much lower than the local resistance through the inlet cone and throat, making it an ideal differential pressure flowmeter (improving the relative measurement accuracy of the differential pressure signal without increasing the system resistance);
The Classical Venturi Flowmeter manufacturer tells you that the airflow velocity of the throat is basically evenly distributed and much higher than the inlet velocity so that the resistance of the Venturi is mainly generated within the length of the throat. The length of the pipe should not be designed to be too long. It can be seen from the pressure cloud diagram that taking the length of the throat to the diameter of the throat will basically not damage the flow field structure.
(3) The Classical Venturi Flowmeter manufacturer tells you that the Venturi tube used as a differential pressure flowmeter has the front and rear static pressure measuring holes arranged at the inlet wall of the Venturi tube and the 1/2 length pipe of the throat. The wall is more reasonable, and the flow calculation section should be selected at the 1/2 length axis section of the throat.
(4) The Classical Venturi Flowmeter manufacturer tells you that numerical simulation can easily simulate the flow field under the actual working conditions of the Venturi tube flowmeter, so as to obtain a more accurate flow calculation correction coefficient reflecting the actual working conditions, and realize the improvement of the flow field. The purpose of measurement accuracy.
The above information is the Classical Venturi Flowmeter Manufacturer's introduction and analysis of some related research on Venturi Flowmeter, hope it helps you.