SEPTEMBER 3, 2026
Issue #53
BREAKING
NIST flow laboratory completes 3-year Coriolis meter audit — full traceability report publishedOTC 2026 session on digital twin calibration for subsea metering now open for paper submissionsATEX update: Zone 1 instrument enclosure requirements revised for hydrogen blended serviceMachine learning slug frequency prediction validated ±8% against field data from 6 operatorsNew ISO/TC 30 work item: uncertainty quantification framework for ultrasonic transit-time metersOffshore Europe 2026 — FluidsMech Engineering presenting two technical papers in AberdeenJOGMEC offshore pipeline integrity database now accessible to registered operator membersEI guidance note published: vibration assessment of piping connected to reciprocating compressorsNIST flow laboratory completes 3-year Coriolis meter audit — full traceability report publishedOTC 2026 session on digital twin calibration for subsea metering now open for paper submissionsATEX update: Zone 1 instrument enclosure requirements revised for hydrogen blended serviceMachine learning slug frequency prediction validated ±8% against field data from 6 operatorsNew ISO/TC 30 work item: uncertainty quantification framework for ultrasonic transit-time metersOffshore Europe 2026 — FluidsMech Engineering presenting two technical papers in AberdeenJOGMEC offshore pipeline integrity database now accessible to registered operator membersEI guidance note published: vibration assessment of piping connected to reciprocating compressors
INSTRUMENTATION

Pitot tube array design limits: when velocity profiles make your reading wrong

Installation-effect testing on nine Annubar configurations in a 48-inch line with a 90° elbow 3D upstream. The correction factors the vendors don't publish — and the test rig data behind them.

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Flow Measurement & Instrumentation

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CFD ANALYSIS

LES vs RANS for swirling pipe flows: when it matters

Where scale-resolved simulation earns its tenfold computational overhead.

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PROCESS HYDRAULICS

Pump curve correction for viscous process fluids

HI correction method vs ISO 17769: which is more conservative and by how much.

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INSTRUMENTATION

Differential pressure cell zero drift in hot service

Root cause analysis of 0.3% systematic bias found during a feed preheat train audit.

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CFD & Numerical Simulation

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PIPELINE ENGINEERING

Cathodic protection interference in bundled flowlines

Stray current modelling and the blind spot in standard CP design practice.

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ROTATING EQUIPMENT

Impeller trim as a variable-speed drive alternative

When trimming the impeller is more cost-effective than installing a VFD.

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HYDRAULIC SYSTEMS

Surge relief valve sizing for fast-closing actuators

Closure time sensitivity and the 10% rule that does not hold at high system pressures.

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"Good CFD is a conversation between the mesh and the physics. Not a button click."

— Marco Tei, FluidsMech Engineering

Pipeline Engineering

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STRUCTURAL INTEGRITY

Fatigue loading spectra for subsea spool pieces

How wave-induced slug flow loads compare to thermal expansion cycle magnitudes.

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FLOW MEASUREMENT

Wet vs dry calibration for ultrasonic transit-time meters

Propagation of calibration uncertainty into fiscal allocation measurements.

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CFD ANALYSIS

Adaptive mesh refinement for free-surface problems

Efficiency gains and the pitfall of under-resolved interface curvature in VOF.

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Hydraulic Systems & Structural Integrity

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PROCESS HYDRAULICS

Net positive suction head: the margin that matters

NPSHA calculation errors most frequently identified in plant audit reviews.

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INSTRUMENTATION

Thermowell wake frequency: when ASME PTC 19.3 is insufficient

Dynamic analysis of thermowells in pulsating flow — beyond steady-state vortex shedding.

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PIPELINE ENGINEERING

Subsea pipeline walking: prediction and mitigation strategies

Thermal-transient-driven axial walking in HP/HT flowlines vs analytical model predictions.

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Flow Measurement & Instrumentation

Pitot arrays, ultrasonic meters, differential pressure systems, and custom measurement solutions for complex flow regimes.

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Full-cycle design of hydraulic circuits, pump systems, actuator networks, and pressure management for industrial applications.

CFD Analysis & Simulation

Turbulent flows, heat transfer, multiphase systems, and aerodynamic profiling using validated commercial and open-source solvers.

Pipeline Engineering

Flow assurance, stress analysis, corrosion modelling, and integrity management for onshore and offshore pipeline networks.

Process Optimisation

Efficiency audits, pressure drop minimisation, pump scheduling, and energy recovery for industrial process plants.

R&D Consulting

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FluidsMech Engineering was founded by a team of hydraulic and mechanical engineers with roots in industrial R&D. Over fifteen years we have grown into a trusted partner for process plants, infrastructure operators, and research facilities across Europe, the Middle East, and Asia.

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