batch_auto_20260713 202607131256465730 BOEM ESP geoESPIS ESPIS@boem.gov Bureau of Ocean Energy Management Wind Tunnel Experiments for Oil and Gas Platform and Drilling Rig Downwash CPP Wind Engineering Consultants, Inc. CPP Wind Engineering Consultants, Inc. Wind tunnel measurements of the downwash around actual and generic offshore platform models were completed to understand the overwater turbulent flow and dispersion around these porous elevated structures. New predictive equations for mean wind speed deficit and wake turbulence enhancement are proposed. These new equations include variation with height. The wind tunnel model included turbulent wind flow and exhaust concentration measurements. The measurements were compared with American Meteorological Society-US Environmental Protection Agency Regulatory Model (AERMOD) and improved AERMOD predictions. 380000 U.S. Department of the Interior, Bureau of Ocean Energy Management, Environmental Studies Program https://doi.org/10.13039/100012475 M0120C0008 10.67297/9A1E4A https://boem.gov/awardpages/100298