publications

Wave generation and active absorption publications:

• Lykke Andersen, T., Eldrup, M. R. and Frigaard, P. (2020). Influence of Spurious Waves on the Performance of Active Absorption Systems in Oblique Waves. Journal of Marine Science and Engineering, Vol. 8, Special Issue "Selected Papers from the Future Paths and Needs in Wave Modelling Workshop".
• Eldrup, M.R., Lykke Andersen, T. (2019). Applicability of Nonlinear Wavemaker Theory. Journal of Marine Science and Engineering, Vol. 7, Special Issue "Selected Papers from Coastlab18 Conference"
• Lykke Andersen, T., Clavero, M., Eldrup, M. R., Frigaard, P., Losada, M. (2018). Active Absorption of Nonlinear Irregular Waves. Proceedings of the 36th International Conference on Coastal Engineering (ICCE), Baltimore, USA.
• Lykke Andersen, T., Clavero, M., Frigaard, P., Losada, M., Puyol, J. I. (2016). A new active absorption system and its performance to linear and non-linear waves. Coastal Engineering, Vol.114, August 2016, Pages 47–60.
• Troch, P., De Rouck, J., Frigaard, P. (2000). Performance of Numerical Boundary Condition based on Active Wave Absorption System. Proceedings of the 27th International Conference on Coastal Engineering, Sydney, Australia.
• Hald, T., Frigaard, P. (1997). Alternative Method for Active Absorption in Multidirectional Waves. Proceedings of the 27th IAHR Congress, San Francisco. IAHR Seminar : Multidirectional Waves and their Interaction with Structures.
• Hald, T., Frigaard, P. (1997). Performance of Active Wave Absorption Systems: Comparison of Wave Gauge and Velocity Meter based Systems, Proceedings of the 7th International Offshore and Polar Engineering Conference, ISOPE, Honolulu, Hawaii, May 1997.
• Hald, T., Frigaard, P. (1996). Performance of Active Wave Absorption Systems: Comparison of Wave Gauge and Velocity Meter based Systems, Proceedings 2nd International Conference on Coastal, Ports, and Marine Structures "ICOPMAS", Tehran, Iran.
• Frigaard, P., Christensen, M. (1995). Absorbing Wave-Maker Based on Digital Filters. Proceedings of the International Conference on Coastal Engineering, pp. 168-180.
• Christensen, M. (1995). Generation and Active Absorption of 2- and 3-Dimensional Linear Water Waves in Physical Models. PhD thesis. Hydraulics & Coastal Engineering Laboratory, Department of Civil Engineering, Aalborg University
• Høgedal, M., Frigaard, P., Christensen, M. (1994). Generation of Long Waves using Non-Linear Digital Filters. Proceedings of the International Symposium on Waves: physical and numerical modelling, Vancouver, Canada. 
• Brorsen, M., Frigaard, P. (1992). Active Absorption of Irregular Gravity Waves in BEM-Models. Boundary Elements XIV. pp. 165-180. 

Wave analysis and reflection separation publications:

• Iversen, S.K., Lykke Andersen, T. and Frigaard, P. (2023). Accuracy of Directional Spectrum Estimation in 2nd Order Multidirectional Waves. Proceedings of the Thirty-third International Ocean and Polar Engineering Conference, Ottawa, Canada.
• Lykke Andersen, T. and Eldrup, M. R. (2021). Estimation of incident and reflected components in nonlinear regular waves over sloping foreshores. Coastal Engineering, Vol. 169.
• Eldrup, M. R. and Lykke Andersen, T. (2019). Estimation of Incident and Reflected Wave Trains in Highly Nonlinear Two-Dimensional Irregular Waves. Journal of Waterway, Port, Coastal, and Ocean Engineering, Vol. 145, Issue 1 (January 2019).
• Lykke Andersen, T., Eldrup, M.R., Clavero, M. (2019). Separation of Long-Crested Nonlinear Bichromatic Waves into Incident and Reflected Components. Journal of Marine Science and Engineering, Vol. 7, Special Issue "Selected Papers from Coastlab18 Conference"
• Lykke Andersen, T., Eldrup, M. R., Frigaard, P. (2017). Estimation of incident and reflected components in highly nonlinear regular waves. Coastal Engineering, Vol. 117, pp. 51-64.
• Burcharth, H. F., Matsumoto, A., Tayasu, M., Matsuda, S., Hald, T. (2002). An Improved Time Domain Procedure For Separating Incident And Reflected Water Waves. Proceedings of the 12th International Offshore and Polar Engineering Conference, Kitakyushu, Japan, Vol. 3, pp. 609-616.
• Ilic, C., Chadwick, A., Helm-Petersen, J. (2000). An evaluation of directional analysis techniques for multidirectional, partially reflected waves .1. numerical investigations. Journal of Hydraulic Research, Vol. 38, No. 4, pp. 243-251.
• Chadwick, A., Ilic, S., Helm-Petersen, J., Grip, L. (2000). An evaluation of directional analysis techniques for multidirectional, partially reflected waves .2. application to field data. Journal of Hydraulic Research, Vol. 38, No. 4, pp. 253-258.
• Alikhani, A., Frigaard, P., Burcharth, H. F. (1998). Wave Data Analysis. Proceedings of the Third International Conference on Coasts, Ports & Marine Structures: ICOPMAS '98, pp. 331-345.
• Benoit, M., Frigaard, P., Schäffer, H. A. (1997). Analysing Multidirectional Wave Spectra. Proceedings of the 27th IAHR Congress, San Francisco. IAHR Seminar : Multidirectional Waves and their Interaction with Structures.
• Hawkes, P. J., Ewing, J. A., Harford, C. M., Klopman, G., Standsberg, C. T., Benoit, M., Briggs, M. J., Frigaard, P., Hiraishi, T., Miles, M. D., Santas, J., Schäffer, H. A. (1997). Comparative Analyses of Multidirectional Wave Basin Data. Proceedings of the 27th IAHR Congress, San Francisco. IAHR Seminar : Multidirectional Waves and their Interaction with Structures.
• Frigaard, P., Helm-Petersen, J., Klopman, G., Standsberg, C. T., Benoit, M., Briggs, M. J., Miles, M., Santas, J., Schäffer, H. A., Hawkes, P. J. (1997). IAHR List of Sea Parameters : an update for multidirectional waves. Proceedings of the 27th IAHR Congress, San Francisco. IAHR Seminar : Multidirectional Waves and their Interaction with Structures.
• Grønbech, J., Jensen, T., Andersen, H. (1996). Reflection Analysis with Separation of Cross Modes.  Proceedings of the 25th International Conference on Coastal Engineering, pp. 968-980.
• Frigaard, P., Brorsen, M. (1995). A Time-Domain Method for Separating Incident and Reflected Irregular Waves. Coastal Engineering, Vol. 24, 1995, pp. 205-215.
• Hald, T. (1995). Wave Group Analysis by Means of the Hilbert Transform Technique. Aalborg University, Denmark.
• Helm-Petersen, J. (1995). Performance Analysis of the BDM Method to Reflected Shortcrested Waves. Final Proceedings of MAST 2 Project: Monolithic (Vertical) Coastal Structures.
• Burcharth, H.F. (1980). A comparison of nature waves and model waves with special reference to wave grouping. Proc. International Conf. on Coastal Engineering, pp. 303-318.

Other publications:

• Markus, D., Jakobsen, M. M., Bletzinger, K.-U., Frigaard, P. (2015). Damping of unwanted turbulence in wave-current experiments. Coastal Engineering, Vol. 96, pp. 38-48.
• Ferri, F., Sichani, M.T., Frigaard, P. (2012). A Case Study of Short-term Wave Forecasting Based on FIR Filter: Optimization of the Power Production for the Wavestar Device. The Proceedings of the Twenty-second International Offshore and Polar Engineering Conference. ISOPE, 2012. pp. 628-635.
• Tedd, J., Frigaard, P. (2007). Short term wave forecasting, using digital filters, for improved control of Wave Energy Converters. ISOPE - International Offshore and Polar Engineering Conference. Proceedings, 2007, pp. 388-394.
• Miles, M. D., Benoit, M., Frigaard, P., Hawkes, P. J., Schäffer, H. A., Standsberg, C. T. (1997). A Comparison Study of Multidirectional Waves Generated in Laboratory Basins. Proceedings of the 27th IAHR Congress, San Francisco. IAHR Seminar : Multidirectional Waves and their Interaction with Structures.
• Burcharth, H.F., Nielsen, S.R.K., Schaarup-Jensen, K. (1986). A Three Dimensional Sea Facility for Deep and Shallow Water Waves.  Proceedings of the Fifth International Symposium on Offshore Mechanics and Arctic Engineering, Tokyo, Japan.