CAREER: Fluid - Sediment Interactions over Complex Coastal Topography

摘要提案编号： CTS-0348203主要制造商：D.寄养机构： 俄亥俄州州立大学职业：复杂海岸地形上的流体-沉积物相互作用拟议的研究将大大提高非粘性泥沙输运的预测能力，在复杂的地形浅海岸沃茨。 沿海环境表现出复杂的反馈波，平均电流，海滩的尺度从沙粒到海岸线。 这项工作涉及到小规模的平面和波纹床的泥沙输运。 结合建模和观测工作提供了一个令人兴奋的机会，以获得新的知识的主导过程，在沿海地区的流体-沉积物界面。 一个新的过程为基础的模式将耦合三维水流，泥沙输运，并预测底形生成，迁移和总泥沙输运形态模块。 模拟的一个关键特征是在完全相同的条件下对实验数据进行验证。 这项工作的广泛影响包括提高了对非粘性沉积物输运的基本认识，可能导致大规模海滩演变预测能力的重大进展。 将根据这项研究编写一系列讲座，并将把关于沉积物输运的实验室课程纳入现有课程。 研究，教育和多样性的整合利用了俄亥俄州州立大学的现有资源，成功地推广计划。 工程领域多样化的努力将侧重于为研究生提供一个文化和性别多元化的环境，并指导年轻女性发展茁壮成长所需的技能和兴趣。 特别值得一提的是，参加了“未来工程师暑期讲习班”，以激发初中女生对海岸工程的兴趣。

ABSTRACTPROPOSAL NO.: CTS-0348203PRINCIPAL INVESTIGATORS: D. FOSTERINSTITUTION: OHIO STATE UNIVERSITY CAREER: FLUID-SEDIMENT INTERACTIONS OVER COMPLEX COASTAL TOPOGRAPHYThe proposed research will significantly advance predictive capability for non-cohesive sediment transport over complex topographies in shallow coastal waters. The coastal environment exhibits complex feedback between waves, mean currents, and beaches at scales ranging from sand grains to coastlines. This effort concerns the transport of sediment over small-scale flat and rippled beds. A combined modeling and observational effort provides an exciting opportunity to gain new knowledge of the dominant processes that govern the fluid-sediment interface in the coastal region. A new process-based model will couple three-dimensional flow, sediment transport, and morphologic modules for the prediction of bedform generation, migration, and total sediment transport. A key feature of the simulations is the validation against experimental data at the exact same conditions. Broad impacts of the work include improved fundamental understanding of non-cohesive sediment transport potentially leading to significant advances in predictive capabilities of large-scale beach evolution. A lecture series will be developed based on the research and a laboratory course on sediment transport will be incorporated into an existing course. The integration of research, education and diversity capitalizes on the existing resources at Ohio State University for a successful outreach program. Efforts to diversify the engineering field will focus on providing a culturally and gender diverse environment for graduate students and mentoring young women to develop the skills and interests needed to thrive. Participation with the Future Engineers Summer Workshop to stimulate the interest of young women in junior high school in coastal engineering is especially noteworthy.