Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Phương pháp DTM-BF và các nghiệm kép cho dòng MHD không ổn định trên tấm thấm co lại với trượt vận tốc
Tóm tắt
Một dòng chảy biên không ổn định của trường điện từ (MHD) qua một tấm thấm co lại được nhúng trong một chất lỏng dẫn điện nhớt chuyển động được nghiên cứu cả theo phương pháp phân tích và phương pháp số. Trượt vận tốc tại bề mặt rắn được xem xét trong các điều kiện biên. Một phương pháp phân tích mới có tên là DTM-BF được đề xuất và sử dụng để tìm ra các nghiệm phân tích gần đúng cho phương trình điều khiển phi tuyến cùng với các điều kiện biên tại vô cực. Tất cả các kết quả phân tích được so sánh với các kết quả thu được từ phương pháp số. Sự so sánh cho thấy sự phù hợp tốt, điều này xác nhận độ chính xác của phương pháp DTM-BF. Hơn nữa, các khoảng tồn tại của các nghiệm kép và nghiệm duy nhất cho nhiều tham số khác nhau đã được xác định. Các tác động của tham số trượt vận tốc, tham số không ổn định, tham số từ trường, tham số hút/tiêm và tham số tỷ lệ vận tốc đối với lực cản bề mặt, vận tốc duy nhất và các profile vận tốc kép lần lượt được khám phá.
Từ khóa
#MHD #dòng chảy không ổn định #tấm thấm #phương pháp DTM-BF #nghiệm kép #các tham số.Tài liệu tham khảo
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