CFD-based flow characterization and pre-investigation-guided measurement optimization for large-diameter stacks with complex upstream structures

doi:10.1016/j.measurement.2026.121586

CFD-based flow characterization and pre-investigation-guided measurement optimization for large-diameter stacks with complex upstream structures

2026-04-21

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DOI：10.1016/j.measurement.2026.121586

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Abstract

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• Proposed a framework for stack flow characterization and measurement optimization. • Complex ducts induced backflow, swirling, asymmetric flow and large flow angles. • CFD pre-investigation-guided 8-point Pitot scheme achieved errors of 0.76%-1.12%. • Four-path ultrasonic flowmeter yielded errors < 0.4% in complex flow fields.

Keywords:

CFD-based flow characterization

stack flow measurement

complex ducts

Pitot tube optimization

ultrasonic flowmeter

CFD-based flow characterization and pre-investigation-guided measurement optimization for large-diameter stacks with complex upstream structures

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