Abstract: Talking about the principle of the Verabar flowmeter and the description of the relevant formula coefficients are provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. When the fluid flows through the Verabar flowmeter probe, a high-pressure distribution area is generated in front of it, and the pressure of the high-pressure distribution area is slightly higher than the static pressure of the pipeline. According to the principle of Bernoulli's equation, the speed of the fluid flowing through the probe increases, creating a low pressure point behind the probe. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is a brief introduction to the principle of Verabar flowmeters and the details of the relevant formula coefficients. When the fluid flows through the Verabar flowmeter probe, a high-pressure distribution area is generated in front of it, and the pressure of the high-pressure distribution area is slightly higher than the static pressure of the pipeline. According to the principle of Bernoulli's equation, when the fluid flows through the probe, the speed increases, and a low-pressure distribution area is generated at the rear of the probe. The pressure of the low-pressure distribution area is slightly lower than the static pressure of the pipeline. After the fluid flows through the Verabar flowmeter probe, a partial vacuum is created behind the probe, and vortices appear on both sides of the probe. The Verabar Flowmeter Average Velocity Flow Probe can accurately detect the average differential pressure generated by the average velocity of the fluid. . The Verabar flowmeter, like other differential pressure flowmeters, follows Bernoulli's equation qV=KCΔp (1) where qV———volume flow of fluid; K———Flow coefficient; C———Flow constant (constant); Δp———Differential pressure generated by the differential pressure generator. C is a constant, to determine qV, K and Δp must be determined. Based on aerodynamics, fluid mechanics theory, boundary layer theory and actual fluid test data, Verabar flowmeter has pioneered the establishment of the mathematical analysis model of K of Verabar flow probe after 5 years of exploration. K=1/[1/(1-CbβV)+C] (2) where Cb———boundary layer coefficient;βV———blocking factor. This is a supplement to the specific application of Bernoulli's equation theory. 1) The accuracy of K is +0.5%, confirmed by comprehensive testing by a world-renowned independent flow laboratory. 2) K is linear, and its change has nothing to do with the change of Reynolds number, which ensures that the measurement result can reach +0.5% accuracy under the range ratio higher than 10:1. 3) The flow coefficient of Verabar flowmeter is more accurate and easier to know than other flowmeters. The accuracy and stability of the Verabar flowmeter Δp depends on the unique scientific design of the Verabar flowmeter: 1) The shape of the probe receives the least traction, so that the separation point between the fluid and the probe is fixed. 2) The Verabar flowmeter adopts a complete metal cavity structure, which avoids the leakage between the chambers caused by the three-piece structure of other probes, increases the strength of the probe, and ensures its accuracy. 3) The low pressure holes are taken on the back two sides of the probe side, before the separation point between the probe and the fluid, so that the low pressure holes are not affected by the eddy current, and the low pressure holes are prevented from being blocked, so that the low pressure signal is more stable and the measurement is more accurate. 4) Rough surface treatment and anti-silting groove: control the surface layer. Under various flow rates, the surface layer of the fluid on the probe surface is a turbulent layer, which ensures that the probe can still obtain stable and accurate signals when the flow rate is low. 5) The Verabar flowmeter probe passes through the entire section of the fluid in the pipeline, and takes pressure from multiple pressure-taking holes. The distance between the pressure-taking holes is obtained after the area integration, and the measured signal is the real signal reflecting the average velocity of the fluid. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'On the principle of the Verabar flow meter and the description of the relevant formula coefficients'
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