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Mô hình số cho dòng chảy đa pha trong vi lưu và kỹ thuật quy trình vi mô: tổng quan về các phương pháp và ứng dụng
Tóm tắt
Bài báo này trình bày một cái nhìn tổng quát về các phương pháp và mô hình số cho các mô phỏng phân giải giao diện của dòng chảy đa pha trong lĩnh vực vi lưu và kỹ thuật quy trình vi mô. Trọng tâm của bài báo là về các phương pháp tiếp tuyến, bao gồm ba phương pháp phổ biến trong giới hạn giao diện sắc nét, đó là phương pháp thể tích dịch lỏng với tái cấu trúc giao diện, phương pháp mức độ và phương pháp theo dõi mặt trước, cùng với các phương pháp có chiều dày giao diện hữu hạn như các phương pháp dựa trên chức năng màu và phương pháp trường pha. Các biến thể của phương pháp Boltzmann lưới vi mô cho các dòng chảy hai chất lỏng cũng được thảo luận, cùng với các phương pháp kết hợp khác nhau. Cơ sở toán học của mỗi phương pháp được trình bày và những lợi ích cũng như hạn chế cụ thể của nó được nhấn mạnh. Đối với các phương pháp tiếp tuyến, vấn đề liên kết phương trình tiến hóa giao diện với các phương trình Navier-Stokes một trường và các vấn đề liên quan được thảo luận. Các phương pháp và mô hình cho lực căng bề mặt, các đường tiếp xúc, truyền nhiệt và khối lượng cũng như sự chuyển pha được giới thiệu. Trong phần thứ hai của bài báo này, các ứng dụng của các phương pháp trong lĩnh vực vi lưu và kỹ thuật quy trình vi mô được xem xét, bao gồm động lực học dòng chảy (dòng chảy tách rời và phân đoạn, hình thành bọt và giọt, vỡ và kết hợp), truyền nhiệt và khối lượng (có và không có phản ứng hóa học), trộn và phân tán, dòng chảy Marangoni và chất hoạt động bề mặt, cũng như sự sôi.
Từ khóa
#mô hình số #dòng chảy đa pha #vi lưu #kỹ thuật quy trình vi mô #phương pháp tiếp tuyến #năng lượng bề mặt #truyền nhiệt và khối lượngTài liệu tham khảo
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