From concept validated hardware.

For research labs · hardware startups · industrial R&D

Engage us for full design-build-test projects, or just the phase you need.

Design

  • Structural
    • Finite element and analytical analysis
    • Joints: bolts, welds, adhesives
    • Dynamics and vibrations
    • Fatigue analysis
  • Aerodynamic and hydrodynamic design
  • Drivetrain, actuation, and motion control
  • Electrical and control systems
  • Design-for-manufacture and tooling

Build

  • Composite design and fabrication
  • In-house machining, welding, and fabrication (metals and plastics)
  • Surface prep, bonding, paint, and coatings
  • Electrical control panels and prototype PCBs
  • Drivetrain and motor integration

Test

  • Test design (planning and instrumentation)
  • Material and subcomponent testing
  • Force, torque, and strain instrumentation
  • Data acquisition and monitoring systems
  • Test campaigns
    • Wind tunnel / water channel
    • Field / on-site

Proposal Support

Assistance with technical narrative and budgeting for federal grants, when XFlow is one of the project's partners.

Case Studies

Carbon-fiber troposkein VAWT rotor on the test stand

Instrumented troposkein VAWT for wind-wave basin testing

Designed, fabricated, and instrumented a carbon-fiber troposkein rotor on a sub-3-month timeline. Custom composite tooling and a multi-step layup process produced the curved blades within aggressive weight limits.

UT Dallas · ARPA-E · tested at the UMaine wind-wave basin

Underwater axial-flow turbine test bed

Underwater axial-flow turbine experimental test bed

Custom in-rotor torque and thrust load cell with rotating-frame digital conversion, redundant water-exclusion sealing, and active thermal management for the enclosed-nacelle servo drive.

University of New Hampshire

CFD before and after and installed flow conditioning for recirculating tank

Flow conditioning of a recirculating tank

XFlow designed a flow conditioning system for a large recirculating tank, then fabricated and installed it at the customer site. CFD-guided design combining turning vanes, honeycomb, and wire mesh screens reduced turbulence intensity from 43.7% to 0.44% and improved uniformity index from 0.51 to 0.925, eliminating a large recirculating eddy that had dominated the test section.

California Institute of Technology

Hydrophone flow shields

Hydrophone flow shields

XFlow developed the manufacturing process for PNNL's oil-filled urethane hydrophone flow shields, a precision void-free casting process that required significant process development to achieve acoustic transparency. Field testing confirmed the shields reduce flow noise by over 20 dB below 50 Hz at flow speeds above 0.5 m/s, attenuate propagating sound by no more than 2 dB below 30 kHz, and survived a 6+ month deployment in a tidal channel without degradation, and is ongoing.

Pacific Northwest National Laboratory

About

We’re a passionate team of engineers who pair deep technical expertise with creative, hands-on problem-solving to help our customers turn ideas into working hardware.

Facilities

Seattle, WA: electrical system development and testing, dynamometers.

Western Massachusetts: 6,000 sq ft of fabrication, assembly, machining, and coatings.

Team

Ian Brownstein, PhD

Ian Brownstein, PhD

Co-founder

Ben Strom, PhD

Ben Strom, PhD

Co-founder

Jason Mavis

Jason Mavis

Lead Electrical Engineer

Alex Frye

Alex Frye

Mechanical Engineer

Quentin Pagnier

Quentin Pagnier

Lead Mechanical Engineer

Contact Us

Let's talk about your next project.

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