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Public release of NEMOH v3.0.0

The FLOATECH project proudly releases NEMOH v3.0.0, the world’s first open-source Boundary Element Method code.

NEMOH is a Boundary Element Methods (BEM) code dedicated to the computation of first order wave loads on offshore structures (added mass, radiation damping, diffraction forces). It has been developed by researchers at Ecole Centrale de Nantes (ECN) for 30 years. It is still used in many of our research projects. Typical use is estimation of dynamic response of floating structures or performance assessment of wave energy converters.

Unlike other BEM softwares, NEMOH’s approach decouples the resolution of the linear free surface Boundary Value Problem (BVP) and the definition of the boundary condition on the body (body condition). This feature makes it easy to deal with flexible structure, hydroelasticity, generalised modes and unconventional degrees of freedom with NEMOH.

NEMOH v3.0.0 includes severall recent developments. The first-order module allows for removing irregular frequencies and new solvers are available for the linear system, resulting in enhanced computational efficiency. A new extension module is provided for computing quadratic transfer functions (QTFs). This release will be, to our knowledge, the sole and only open-source BEM software that provides the second- order module. The software is released under the GNU General public v3 license.

NEMOH v3.0.0 has been developed by G. Delhommeau, A. Babarit, J. Singh, P. Guével, J.C. Daubisse, R. Kurnia from ECN in the framework of the FLOATECH project.

NEMOH v3.0.0 is available at


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