Fluid Flows

Synopsis: Five sections which illustrate aspects of fluid flows.
1: The no-slip condition between a fluid and a wall, flow over a thin plate, laminar and turbulent flows, flow over a section of a cylinder and the transition from laminar to turbulent flow.
2: A tornado is an example of a vortex, but both rotational and irrotational vortices can be created in the laboratory. Shows vortices shed by an aerofoil in motion, and a vortex ring - a smoke ring. The collision of two smoke rings illustrates Helmholtz’s theorem.
3: Streamlining reduces drag, but an increase in windspeed does not always lead to an increase in drag as illustrated in wind tunnel experiments.
4: A steady wind blowing against a chimney can cause oscillation or ovalling. A different oscillatory effect, galloping, can affect cables. Shows ways in which these potentially damaging effects can be reduced.
5: Particle motion in deep and shallow water waves.
Series: Engineering Mechanics: Solids and Fluids, Course T331
Language: English
Country: Great Britain
Medium: Video; Videocassette. Standard formats. col. 24 min.
Year of production: 1986
Availability: Off-air recording licence
Sale; 1999 sale: £145.00 (+VAT +p&p)
Subjects: Physics
Keywords: boundary layers; drag; flow; fluid mechanics; mechanics; vorticity; waves

Title: Boundary layer flows
Synopsis: 1: The no-slip condition between a fluid and a wall, flow over a thin plate, laminar and turbulent flows, flow over a section of a cylinder and the transition from laminar to turbulent flow.
Title: Band 1
Synopsis: 2: A tornado is an example of a vortex, but both rotational and irrotational vortices can be created in the laboratory. Shows vortices shed by an aerofoil in motion, and a vortex ring - a smoke ring. The collision of two smoke rings illustrates Helmholtz'
Title: Drag
Synopsis: 3: Streamlining reduces drag, but an increase in windspeed does not always lead to an increase in drag as illustrated in wind tunnel experiments.
Title: Band 3
Synopsis: 4: A steady wind blowing against a chimney can cause oscillation or ovalling. A different oscillatory effect, galloping, can affect cables. Shows ways in which these potentially damaging effects can be reduced.
Title: Unsteady force
Synopsis: 5: Particle motion in deep and shallow water waves.
Title: Band 4
Title: Wave kinematics
Title: Band 5

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