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Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
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In pipe flow measurement, orifice, nozzle, and Venturi meters are commonly used to determine fluid flowrates by constricting the flow area, which increases fluid velocity and reduces pressure. This pressure difference, governed by Bernoulli's principle and adjusted for real-world conditions, is essential for calculating flowrate. Each meter type is suited to specific applications based on accuracy, efficiency, and compatibility with various flow conditions.
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Fluid-Structure Coupling Effects in a Dual U-Tube Coriolis Mass Flow Meter.

Yuh-Chung Hu1, Zen-Yu Chen2, Pei-Zen Chang2

  • 1Department of Mechanical and Electromechanical Engineering, National ILan University, Yilan 26047, Taiwan.

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|February 5, 2021
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Summary

This study optimizes Coriolis mass flowmeter (CMF) design by simulating fluid-structure coupling dynamics. Dynamic balance and viscosity measurement are key for efficient CMF manufacturing, reducing production time.

Keywords:
Coriolis mass flow metercomputational fluid dynamicsfinite-element simulationfluid–structure interaction

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Area of Science:

  • Mechanical Engineering
  • Fluid Dynamics
  • Manufacturing Processes

Background:

  • Coriolis mass flowmeters (CMFs) are complex, customized devices with long lead times.
  • High-degree fluid-structure coupling and precision manufacturing are critical.
  • Current design and manufacturing processes can be time-consuming.

Purpose of the Study:

  • To present design considerations for a more time-efficient CMF design and manufacturing process.
  • To simulate and experimentally validate the fluid-structure coupling dynamics of a dual U-tube CMF.
  • To develop a simulation application for rapid design evaluation.

Main Methods:

  • COMSOL simulation package used for fluid-structure coupling dynamics.
  • Experimental validation of simulation results with a manufactured dual U-tube CMF.
  • Development of a COMSOL-based simulation application.

Main Results:

  • Dynamic balance is crucial to prevent zero drift in dual U-tube CMFs.
  • Fluid viscosity can be determined via voice coil actuator current or pressure loss.
  • The developed simulation application significantly shortens design and manufacturing time.

Conclusions:

  • Optimized design considerations derived from simulation and experiments enhance CMF manufacturing.
  • Accurate dynamic balance and viscosity determination are vital for CMF performance.
  • The simulation application offers a practical tool for accelerating CMF product development.