With its headquarters located in Bellevue, Washington, and distributors around the globe, Simerics was founded in 2005 with the mission to develop and provide simulation tools to be used effectively by engineers for virtual testing of pumps, motors, compressors and other fluid components and systems.
Seeing the need for a better CFD tool for rotating / cavitating devices, Simerics has employed the latest algorithms and software technology available to develop PumpLinx as an accurate, comprehensive, fast, and quick-to-use tool for today's Computer Aided Engineering environment.
Given a pump design from CAD, PumpLinx predicts pressures, flow, cavitation, torques, loads, and other relevant engineering data for the purpose of analysis and optimization.
More information is available at: www.simerics.com
Simerics Inc.
"Pressure Pulsation Analysis of an Axial Piston Pump using advanced Computational Fluid Dynamics (CFD) and real-world testing" preaentation by Danfoss & Simerics by Veeranagouda Patil, Christian Svendsen, Dipak Maiti, and Thangasivam Gandhi at Fluid Power Society of India's (FPSI) Fluid Power Technical Seminar (FPTS) 2025
🚀 Optimizing Axial Piston Pumps with CFD & Experimental Validation
🔍 A collaborative study by Danfoss Industries Pvt Ltd and Simerics Inc. explores pressure pulsation analysis in Axial Piston Pumps (APPs) using advanced Computational Fluid Dynamics (CFD) and real-world testing.
APPs are critical in fluid power systems, especially in seawater reverse osmosis (SWRO) applications. Their high efficiency and oil-free operation make them ideal for desalination, firefighting, and gas turbine systems. However, challenges like cavitation, pressure pulsations, and resonance risks demand precise design and validation.
📌 Study Highlights:
CFD simulations were performed using Simerics-MP+, incorporating transient 3D modeling with moving grids.
Experimental validation was conducted using a custom test rig with high-frequency pressure sensors.
Boundary conditions tested:
Fixed pressure
Anechoic termination (zero reflection)
Needle valve at discharge
📈 Key Findings:
Volumetric efficiency reached up to 98% at 1500 RPM.
Needle valve simulation closely matched experimental pressure pulsation data.
Anechoic termination provided realistic wave propagation.
Fixed pressure conditions led to non-physical standing waves.
🔍 Spectral Analysis:
Pressure pulsation signals were transformed into the frequency domain using FFT in MATLAB.
Dominant pulsation frequencies:
Up to 1.0 kHz at the inlet
Up to 1.3 kHz at the outlet
Comparison with API 674 limits revealed the need for effective damping to avoid cavitation and valve lift-off.
💡 Why It Matters: This study demonstrates how CFD, when combined with experimental validation and spectral analysis, can significantly enhance pump design, reduce noise and vibration, and ensure compliance with industry standards.
👏 Kudos to the teams at Danfoss and Simerics for pushing the boundaries of fluid power innovation!
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8 months ago | [YT] | 1
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