Author Archives: Ivan

New facility at TU Delft to study the effect of the Earth’s rotation on waves

The new tank and linear piston wavemaker was built by Edinburgh Designs.

“The DTP-Lab combines a rotating table, with a water-filled pool in which gravity waves can be generated, a so-called wave flume. The motion of the water underneath the waves can be studied using a 3D Particle Tracking Velocimetry (PTV) system.  The table can rotate up to 7.5 rotations per minute, allowing the effect of the Earth’s rotation, normally only apparent at large geophysical scales (10-1000 km) to be studied under laboratory conditions.”

Maritime Technology Innovation Center Taiwan (MTIC) Deep Ocean Basin Tank

The Metal Industry Research and Development Centre (MIRDC) in Kaohsiung, Taiwan has just opened its Deep Ocean Basin System (DOBS).

Since 1987, Edinburgh Designs has worked on many different projects across the world and have installed over 2000 wave paddles in over 120 tanks in 27 countries. The tank has 124 x 1.2m Hinge Depth Paddles.

The paddles have Edinburgh Designs unique Force Feedback Absorption. There are sloping Passive Beaches on two sides opposite the wavemakers

ED HAVE MOVED TO A NEW PREMISES IN LOANHEAD

Please note: as of July 2024, Edinburgh Designs are now in a new premises in Loanhead.

The new building is part of the Lothian School of Technology, the new venture that was masterminded by the late Stephen Salter. ED’s new facility will allow us to expand our operations and work alongside likeminded engineers.

Edinburgh Designs Ltd,
3 Edgefield Road Ind Est,
Loanhead,
EH20 9TB
0131 662 4748

To find us, come down the right hand side of the building to the brick office that sticks out the side of the main building.

Edinburgh Designs transitions to Employee Owned

Edinburgh Designs is pleased to announce that it is now owned by the employees through an Employment Ownership Trust. Passing the company on to our employees will ensure continuity of support for the wave machines we have installed around the world.

The company will continue to be run as before with Matthew and Douglas supporting the transfer of responsibility, making sure that our unique capability for design and build is continued.

Second Order Wave Generation Using Force Feedback Control in Complex Wave Tanks

Force based absorption ensures that the wave environment stays stable, preventing cross wave build-up and other parasitic effects.

Edinburgh Designs wave machines also remain accurate over time and continue to work well when the waves are breaking off the front of the paddles. Generating waves with a curved corner using linear wave theory leads to an unwanted wave in the tank. It is a second harmonic of the desired wave, arising when using linear theory to generate waves around a curved corner and along the paddles downstream. By adding in theoretical predictions for second order wave-paddle interactions, the spurious second harmonic is eliminated.

This is a leading edge mathematical technique that has been developed by Edinburgh Designs Mathematicians. Tests performed at: Technology Centre for Offshore and Marine, Singapore (TCOMS)

Tests conducted with 184 x 2.2m hinge depth paddles

Khalifa University Center for Robotics and Autonomous Systems Wave Tank with 32×1.8m flap paddles

The Khalifa University Center for Robotics and Autonomous Systems was established in 2018 to conduct pioneering research in robotics relevant to industry and society.

Edinburgh Designs and Alghanem Trading & Contracting Ltd have built a complex Robotics Environment Tank with cross flow, waves and instrumentation gantry.

The tank was completed in late 2021 and features 32×1.8m paddles in a double ended arrangement. 12 flow ducts provide flow across the width of the tank. The tank is 8m wide x 18m long x 3m deep.

For more information and to follow the latest research being conducted in the facility see: https://www.ku.ac.ae/kucars

For more information on Alghanem Trading & Contracting Ltd see: http://www.alghanemgroup.com/