原文传递
Modeling Vessel-Generated Currents and Bed Shear Stresses.
| 题名： | Modeling Vessel-Generated Currents and Bed Shear Stresses. |
| 作者： | hammack, e. a. smith, d. s. stockstill, r. l. |
| 关键词： | adaptive systems, two dimensional flow, navier stokes equations, inland waterways, ships, velocity, ground water |
| 摘要： | Adaptive Hydraulics (ADH) is a computational fluid dynamics package that solves the Navier-Stokes equations and shallow-water (depth-averaged Navier-Stokes) equations on two- and three-dimensional computational meshes for overland flow, sediment transport, and groundwater problems. The capability to model the hydrodynamic effects of vessels moving through a two-dimensional flow field has been added to ADH. Using empirical relations developed by Maynord (2000), the bed shear stresses induced by a barge bow and towboat propeller may also be calculated, which, in turn, can be used to predict sediment transport. Guidelines have been developed for sufficient mesh refinement near the vessel and appropriate values for the mesh adaption parameters in ADH. To demonstrate the new modeling capability, this report describes in detail a study of the effects of a vessel sailing through a stretch of the Illinois Waterway near Kampsville, IL. The vessel-induced shear stresses are also reported for the Kampsville study. / NOTE: Final rept. / Supplementary Notes: The original document contains color images. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0822；56p |
| 报告类型： | 科技报告 |
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