Nghiên cứu chế độ dòng chảy khu vực bãi biển Đồi Dương, tỉnh Bình Thuận

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Nam Thịnh Ngô, Kỳ Phùng Nguyễn, Thị Mỹ Diễm Phùng

Ngôn ngữ: Vie

Ký hiệu phân loại:

Thông tin xuất bản: Khí tượng thủy văn 2021

Mô tả vật lý: 58-74

Bộ sưu tập: Metadata

ID: 410697

Thêm vào giỏ Liên kết toàn văn

Tóm tắt
Chủ đề

Mô hình phổ sóng Mike 21 SW (Spectral Waves) và mô hình thủy lực Mike 21 HD FM (Hydro Dynamic Flow Model) được sử dụng trong bài báo để tính toán trường sóng và dòng chảy ven bờ khu vực bãi biển Đồi Dương, Phan Thiết, tỉnh Bình Thuận. Mô hình sóng Mike 21 SW và Mike 21 HD FM đều được hiệu chỉnh và kiểm định với số liệu thực đo với hệ số tương quan khá tốt. Kết quả tính toán trường sóng là điều kiện đầu vào cho mô hình tính dòng chảy tổng hợp Mike 21 HD FM. Kết quả tính toán trường sóng khu vực bãi biển Đồi Dương cho thấy độ cao sóng có nghĩa vào mùa gió Đông Bắc khoảng 0,9-1,3 m, với hướng sóng là hướng Đông Bắc, vào mùa gió Tây Nam khoảng 0,4-0,7 m với hướng sóng là hướng Tây Nam. Đối với vận tốc dòng chảy, kết quả tính toán cho thấy vận tốc dòng chảy ven biển Đồi Dương khá nhỏ, đạt khoảng 0,025-0,35 m/s vào mùa gió Tây Nam và 0,02-0,3 m/s đối với mùa gió Đông Bắc. Qua kết quả phân tích thấy được dòng chảy khu vực bãi biển Đồi Dương chịu ảnh hưởng mạnh bởi triều. Nghiên cứu cũng làm cơ sở đưa ra các giải pháp nhằm giảm thiểu các quá trình tác động tiêu cực đến vùng bờ biển do ảnh hưởng của dòng chảy gây ra, góp phần định hướng phát triển kinh tế xã hội trong khu vực nghiên cứu., Tóm tắt tiếng anh, The Mike 21 SW wave model (Spectral Waves) and the hydraulic model Mike 21 HD FM (Hydro Dynamic Flow Model) were used in the paper to calculate the coastal current and wave fields in Doi Duong beach, Phan Thiet, Binh Thuan Province. Mike 21 SW wave model and Mike 21 HD FM are calibration and accreditation with real measured data with quite good correlation coefficient. The results of the wave field calculation are input conditions for the Mike 21 HD FM synthetic current model. The results of wave field calculation in Doi Duong beach area show that the significant wave height in northeast monsoon season is about 0.9-1.3 m, with the wave direction in the Northeast direction, in the southwest monsoon about 0 4-0.7 m with the wave direction in the southwest direction. As for the flow velocity, the calculation results show that the current velocity at the coast of Doi Duong is quite small, reaching about 0.025-0.35 m/s in the southwest monsoon season and 0.02-0.3 m/s for northeast monsoon season. Hydrodynamic calculation results show that flow in Doi Duong beach area is strongly influenced by tides. The study also serves as the basis for solutions to minimize negative impacts on the coastal areas caused by the flow, contributing to the orientation of socioeconomic development in the study area.

Tạo bộ sưu tập với mã QR