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returns to MARIN to fi nd answers


Joel Witz, Global Engineering Advisor at global


independent energy company Hess Corporation, has been a regular visitor to MARIN for nearly three decades. Report asks how MARIN’s testing facilities have assisted this leading energy firm over the years.


J


HESS on why it


oel recalls his first visit some 30 years ago to MARIN’s headquarters in Wageningen, commenting that there


were impressive facilities for the time but above all, he remembers the inspiring enthusiasm for hydrodynamics. Since those early days, he says, there have been step changes such as new facilities like the Offshore Basin and progressive changes in model construction techniques and improve- ments in instrumentation, data acquisition and analysis but MARIN’s employees’ enthusiasm for hydrodynamics has remained the same.


Commenting on why HESS has returned time after time, Joel outlines what specific design questions the energy company looks to have answered by model tests. Over the years, the company has performed a range of model tests focused on specific design questions. “For example, wind tunnel tests of an offshore platform in a calibrated marine boundary layer give the load coefficients needed for input into the numerical models used to determine the dynamic response. Towing tests provide similar drag load coefficients and can also be used to evaluate Vortex Induced Motion (VIM) responses that are difficult to estimate today by other means. And finally in the context of MARIN with the Offshore Basin it is possible to test the


6 report


Stampede TLP


160506


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