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Okey G. Nwogu, Ph.D.

Selected Publications

FFT-Accelerated Boundary Integral Model | Marine Radar Data Assimilation | Nearshore Wave Hydrodynamics | Wave-Structure Interaction | Ship-Generated Waves | Wave Propagation in Harbors | Ice-Structure Interaction | | Directional Wave Analysis

FFT-Accelerated Boundary Integral Model

Nwogu, O.G. 2009. Interaction of finite-amplitude waves with vertically sheared current fields. Journal of Fluid Mechanics, 627, 179-213(pdf )    

Marine Radar Data Assimilation

Nwogu, O.G. and Lyzenga, D.R. 2010. Surface wavefield estimation from coherent marine radars. IEEE Geoscience and Remote Sensing Letters, (DOI: 10.1109/LGRS.2010.2043712) (pdf )  

Aragh, S. H. and Nwogu, O. 2009. Variational assimilation of synthetic radar data into a pseudo-spectral wave model. Journal of Coastal Research, 52, 235-244.  

Aragh, S. H., Nwogu, O. and Lyzenga, D. 2008. Improved estimation of ocean wave fields from marine radars using data assimilation techniques. Proc. 18th Int. Offshore and Polar Eng. Conf. (ISOPE), Vancouver, Canada. (pdf )  

Aragh, S. H. and Nwogu, O. 2007. Variational assimilation of synthetic radar data into a pseudo-spectral wave model. Proc. 9th Int. Symp. on Fluid Control, Measurement, and Visualization (FLUCOME 2007), Tallahassee, FL  

Nearshore Wave Hydrodynamics

Nwogu, O. and Demirbilek, Z. 2010. Infragravity wave motions and runup over shallow fringing reefs, ASCE Journal of Waterway, Port, Coastal, and Ocean Engineering (http://dx.doi.org/10.1061/(ASCE)WW.1943-5460.0000050)  

Nwogu, O. and Demirbilek, Z. 2008. Nonlinear wave transformation and runup over fringing coral reefs. Proc. 31st Int. Conference on Coastal Engineering, Hamburg, Germany.

El Asmar, W. and O. Nwogu. 2006. Finite volume solution of Boussinesq-type equations on an unstructured grid. Proc. 30th Int. Conference on Coastal Engineering, San Diego, CA, 73-85.  

Nwogu, O. and Demirbilek, Z. 2006. Nonlinear wave interaction with submerged and surface-piercing porous structures. Proc. 30th International Conference on Coastal Engineering, San Diego, CA, 287-299. 

Nwogu, O. 2006. Boussinesq modeling of landslide-generated waves and tsunami runup. In Advanced Numerical Models For Simulating Tsunami Waves And Runup Advances in Coastal and Ocean Engineering (Eds. P.L.-F Liu, H. Yeh and. C. Synolakis), Vol. 10, 273-278.  

Nwogu, O.G. and Demirbilek, Z. 2001. BOUSS-2D: A Boussinesq Wave Model for Coastal Regions and Harbors. Technical Report ERDC/CHL TR-01-25, U.S. Army Engineer Research and Development Center, Vicksburg, MS. (pdf

Nwogu, O.G. 2001. Numerical Prediction of Rip Currents on Barred Beaches. Proc. 4th Int. Symposium on Ocean Wave Measurement and Analysis, WAVES 2001, San Francisco, September, 2001. 

Santás, J.C., Nwogu, O., Navarro, A., Benito, C., and Martín M.J. 2001. Field Evaluation of A Boussinesq Model Under Highly Nonlinear And Breaking Wave Conditions. Proc. 4th Int. Symposium on Ocean Wave Measurement and Analysis, WAVES 2001, San Francisco, September, 2001 

Bruno, M., Nwogu, O., Rankin, K.L. and Herrington, T. 2000. Real-Time Nearshore Wave Measurement and Forecast System: Preliminary Results. Proc. 27th International Conference on Coastal Engineering, Sydney, Australia, 283-296. 

Nwogu, O.G. 1996. Numerical Prediction of Breaking Waves and Currents with a Boussinesq Model. Proc. 25th International Conference on Coastal Engineering, ICCE '96, Orlando, Vol. 4, 4807-4820.

Nwogu, O. 1994. Nonlinear Evolution of Directional Wave Spectra in Shallow Water. Proc. 24th International Conference on Coastal Engineering, Kobe, Japan, Vol. I, 467-481. 

Nwogu, O. 1993. Alternative Form of Boussinesq Equations for Nearshore Wave Propagation. Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, 119(6), 618-638.(pdf )  

Nwogu, O. 1993. On the Generation of Infragravity Waves by Shoaling Multi-Directional Waves. Proceedings of the Second International Symposium on Ocean Wave Measurement and Analysis, WAVES '93, New Orleans, 1-14. 

Nwogu, O., Takayama, T., and Ikeda, N., 1992. Numerical Simulation of the Shoaling of Irregular Waves Using a New Boussinesq Model. Report of the Port and Harbour Research Institute, 31(2), Yokosuka, Japan, 3-19.

Wave-Structure Interaction

Nwogu, O., Datla, R. and Song, J. 2001. Physical Model Study of a Floating Fender System. Technical Report SIT-DL-01-9-2806, Davidson Laboratory, Stevens Institute of Technology.

Irani, M.B., Nwogu, O.G., and Mogridge, G.R. 1992. Model Testing of Tension Leg Platforms - Part 1: Simulation of Environmental Loading. International Journal of Offshore and Polar Engineering, 2(1), 18-23.

Nwogu, O., Cornett, A., and Haritos, N. 1992. Response of a Compliant Cylinder to Irregular Waves. Proc. 11th International Conference on Offshore Mechanics and Arctic Engineering, Calgary, Vol. I, 189-196. (pdf

Nwogu, O. and Isaacson, M., 1991. Drift Motions of a Floating Barge in Random Multi-Directional Waves. Journal of Offshore Mechanics and Arctic Engineering, Trans. ASME, 113(1), 37-42. (pdf

Nwogu, O.G. and Irani, M.B. 1990. Numerical Prediction of Higher Order Wave Induced Loads on Tethered Platforms. Proc. European Offshore Mechanics Symposium, EUROMS-90, Trondheim, Norway, 265-271. (pdf

Isaacson, M., and Nwogu, O. 1989. Random Short-Crested Wave Forces on a Vertical Pile. Journal of Offshore Mechanics and Arctic Engineering, Trans. ASME, 111(3), 242-250.

Nwogu, O. and Isaacson, M. 1989. Force Distribution due to Random Short-Crested Waves. Proc. Maritime Hydraulics Session, XXIII IAHR Congress, Ottawa, C-33 to C-40. 

Isaacson, M., and Nwogu, O. 1987. Wave Loads and Motions of Long Structures in Directional Seas. Journal of Offshore Mechanics and Arctic Engineering, Trans. ASME, 109(2), 126-132.(pdf )

Ship-Generated Waves

Nwogu, O., 2007. Numerical modeling of waves generated by high-speed vessels in shallow water with a coupled Boussinesq-Panel method. Proc. 9th Int. Conf. on Num. Ship Hydrodynamics, Ann Arbor, MI, 331-343. (pdf )  

Nwogu, O. and Demirbilek, Z. 2004. Numerical modeling of ship-induced currents in confined waterways. Proc. 29th International Conference on Coastal Engineering, Lisbon, Portugal, 256-268.  

Nwogu, O., G. 1997. Numerical Model Study of Ship-Induced Waves and Currents in the Elbe Estuary. Canadian Hydraulics Centre Technical Report HYD-CTR-039, National Research Council, Canada. 

Wave Propagation in Harbors

Nwogu, O.G. 2000. Time Domain Simulation of Long-Period Oscillations in Harbors. Proc. 27th International Conference on Coastal Engineering, ASCE, Sydney, Australia, 3643-3654.

Cornett, A.M., Nwogu, O.G., Faure, T., and Hong, E. 1997. Hydraulic Modelling of Phase 2 Development at Laem Chabang Port. Proc. 13th Australasian Conference on Coastal and Ocean Engineering, PACIFIC COASTS AND PORTS '97, Christchurch, New Zealand, 723-728.

Nwogu, O.G. and Mansard, E.P.D. 1994. Time Domain Simulation of Directional Wave Propagation into Harbours. Proc. Int. Conference on Hydro-Technical Engineering for Port and Harbour Construction, HYDRO-PORT '94, Yokosuka, Japan, 253-265. 

Ice-Structure Interaction

Nwogu, O.G., and Christensen, F.T. 1994. Compliant Model Tests with the Great Belt West Bridge Piers in Ice - Part 1: Test Methods and Key Results. Cold Regions Science and Technology, 23, 149-164.

Directional Wave Analysis

Nwogu, O. 1993. Effect of Steady Currents on Directional Wave Spectra. Proc. 12th International Conference on Offshore Mechanics and Arctic Engineering, Glasgow, Vol. I, 25-32. (pdf

Cornett, A.M., Miles, M.D., and Nwogu, O. 1993. Physical Modelling of Multi-Directional Waves. Proceedings of the Second International Symposium on Ocean Wave Measurement and Analysis, WAVES '93, New Orleans, 614-629. 

Nwogu, O. 1989. Maximum Entropy Estimation of Directional Wave Spectra from an Array of Wave Probes. Applied Ocean Research, 11(4), 176-182. (pdf )  

Nwogu, O., Mansard, E.P.D., Miles, M. and Isaacson, M. 1987. Estimation of Directional Wave Spectra by the Maximum Entropy Method. Proc. IAHR Seminar on Wave Analysis and Generation in Laboratory Basins, XXII IAHR Congress, Lausanne, Switzerland, 363-376. (pdf )  

 

University of Michigan | College of Engineering | Naval Architecture and Marine Engineering