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research/
hydro power
We study how contra-rotating propellers reshape vortex structures and recover lost energy from rotating flow — and turn those interactions into higher thrust and improved hydro power performance. If vortex dynamics fascinates you, read on.
A contra-rotating propeller for optimizing thrust
◇ WHY PROPULSOR EFFICIENCY MATTERS
Hydro and tidal energy systems rely on moving water to generate useful power. The more efficiently a propeller converts fluid motion into thrust and energy extraction, the greater the overall system performance.
But conventional single-propeller designs leave energy behind. Rotating wakes, vortex losses, and downstream flow disturbances reduce efficiency and limit the amount of recoverable power.
The result: lost energy, reduced thrust, and lower system performance. Understanding how vortices interact is how you unlock more energy from every rotation.
The questions we are chasing
The objective: analyze and optimize a contra-rotating propeller system for enhanced thrust generation. That breaks down into four engineering questions.
Q1
How do vortex structures form and interact in contra-rotating systems?
Q2
How can downstream flow be reorganized to improve thrust generation?
Q3
How do operating conditions influence thrust and wake behavior?
Q4
Which configurations recover the greatest amount of rotational energy?
Why it is hard
Contra-rotating systems generate highly complex flow structures where multiple vortices interact, merge, bend, and redistribute energy throughout the wake. These behaviors cannot be predicted through theory alone.
01
Interaction between primary and secondary vortices
02
Formation of complex downstream wake structures
03
Energy transfer between opposing rotational flows
04
Shifting thrust zones along the propeller axis
05
Sensitivity to turbulence and rotational speed
◇ METHODOLOGY
Built in CFD, validated through flow analysis.
We use advanced flow visualization and Computational Fluid Dynamics to investigate how contra-rotating propellers influence wake development and thrust generation. Numerical simulations allow us to study interactions across parameters we control:
Together these reveal how energy moves through the wake and how thrust can be maximized.
What we measure
Velocity distribution throughout the wake
Pressure variation within vortex structures
Primary and secondary vortex interactions
Thrust and torque generation characteristics
Wake evolution under varying operating conditions
Energy recovery from rotational flow structures
Why it matters
Improved thrust generation and system efficiency
Enhanced hydro and tidal energy extraction
Reduced energy losses within rotating wakes
Support for compact high-performance turbine designs
Insights for future renewable energy technologies
Let's unlock the power hidden inside the wake.
This program welcomes anyone drawn to vortex dynamics, hydro power systems, CFD and numerical simulation, renewable energy engineering, or advanced propeller design. You will leave with real experience in flow analysis, wake optimization, and next-generation energy technologies.
4,700+
Research participants enrolled
2,156+
International & national universities represented
30+
Countries with active researchers
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