tailieunhanh - Ebook Introduction to fluid mechanics: Part 2 - Edward J. Shaughnessy

(BQ) Part 2 book "Introduction to fluid mechanics" has contents: Elements of flow visualization and flow structure, governing equations of fluid dynamics, analysis of incompressible flow, flow in pipes and ducts, external flow, open channel flow. | PART 2 D I FFE R E NTIAL ANALYS I S O F FLOW This page intentionally left blank 10 ELEMENTS OF FLOW VISUALIZATION AND FLOW STRUCTURE Introduction Lagrangian Kinematics Particle Path, Velocity, Acceleration Lagrangian Fluid Properties The Eulerian–Lagrangian Connection Material Lines, Surfaces, and Volumes Pathlines and Streaklines Streamlines and Streamtubes Motion and Deformation Velocity Gradient Rate of Rotation Vorticity Circulation Irrotational Flow and Velocity Potential Rate of Expansion Dilation Incompressible Fluid and Incompressible Flow Streamfunction Rate of Shear Deformation Summary Problems INTRODUCTION Suppose you are assigned to investigate the possibility of dust, mildew, spores, bacteria, and other debris accumulating in a building’s heating, ventilating, and air-conditioning (HVAC) system. This is important because the accumulation of allergens like these may cause respiratory discomfort. Experience suggests that deposits of airborne materials 573 574 10 ELEMENTS OF FLOW VISUALIZATION AND FLOW STRUCTURE occur in regions of slow or recirculating flow, so you are to review the HVAC design and identify any regions in which allergens might accumulate. Now consider the proposed duct layout for an HVAC return line illustrated in Figure . Will regions of slow or recirculating flow occur with this layout? Wouldn’t it be nice to be able to “see” the corresponding flow in this duct section so that you could answer the flow question before the ducting was installed? Flow visualization is the tool that can help you with this sort of task. Vents Flow Region of sudden expansion Flow (A) TURBULENT FLOW THROUGH A SUDDEN AXISYMMETRIC EXPANSIO STREAMLINE CONTOUR .

crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.