Wave Action at Spillways
The height of progressive irregular waves observed to exist downstream from spillways was found to have a normal distribution. The significant wave height depended on Froude number, downstream...

Travel Time of Waves in Backwaters
Time of travel of elementary waves in prismatic channels with gradually varied flow is expressed by two parametric equations. The first of these equations gives the travel time over a...

Sliding of Composite-Type Breakwaters by Breaking Waves
In order to prove that experimental results would be applicable to prototype conditions with reasonable accuracy according to Froude's law of similarity and that the sliding...

Groups of Vertical Cylinders Oscillating in Water
Drag, lift, and moment on twenty-four parallel vertical 1/2-in. cylinders oscillating with 13-in. amplitude in water were measured in a laboratory tank 5.5 ft by 16 ft. A comparison, Do,...

Manning Roughness Factors for Concrete Sewer Pipe
Study of roughness characteristics of high quality concrete pipe of 6 in., 8 in., and 12 in. diam; full flow conditions were determined with just slight pressure head existing on lines;...

Study of Scour Around Spur-Dikes
Investigation was conducted in 2 ft wide by 25 ft long nonrecirculating flume; effect of flow, spur-dike, and sediment characteristics on maximum scour depth; it was found that Froude...

Irrotational Motion of Two Fluid Strata towards a Line Sink
Flow of two fluids of different density towards line sink located in bottom corner of rectangular configuration with upstream and extending to infinity, was studied by relaxation techniques;...

Drag and Lift on Spheres within Cylindrical Tubes
Method for evaluating lift and drag forces that are exerted by moving fluid on spherical particle resting on bottom of cylindrical tube; experimental data presented show variation in lift...

Models Primarily Dependent on the Reynolds Number
Design, construction, and operation of models of closed-conduit fluid systems, and interpretation of test data; viscous and inertia forces in flowing fluids of such models, and hence Reynolds...

Models Primarily Dependent on the Reynolds Number
Design, construction, and operation of models of closed-conduit fluid systems, and interpretation of test data; viscous and inertia forces in flowing fluids of such models, and hence Reynolds...

Drag and Lift on Spheres within Cylindrical Tubes
Method for evaluating lift and drag forces that are exerted by moving fluid on spherical particle resting on bottom of cylindrical tube; experimental data presented show variation in lift...

Irrotational Motion of Two Fluid Strata Towards a Line Sink
Flow of two fluids of different density towards line sink located in bottom corner of rectangular configuration with upstream and extending to infinity, was studied by relaxation techniques;...

Absorption of Oxygen from Air Bubbles in Water
Correlations developed to define absorption; relationships developed between liquid film coefficient, KL and Reynolds and Schmidt Numbers at liquid...

Stratified Flow into a Line Sink
Study of discharge of stratified fluid through horizontal slot at end of channel; experiments show that when densimetric Froude number is less than 0.28 flow pattern is divided into two...

Turbulence Characteristics of the Hydraulic Jump
Hot wire measurements of turbulence in air flow model of hydraulic jump described for Froude numbers of 2, 4, and 6; results analyzed and interpreted in light of momentum and energy integrals....

Skin Friction Experiments on Rough Walls
Effects of roughness on skin friction of flat plate at very high Reynolds numbers can be investigated by experiments in pipe at moderate Reynolds numbers if roughness of plate is reproduced...

Open-Channel Flow at Small Reynolds Numbers
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The Hydraulic Design of Stilling Basins: Stilling Basin and Wave Suppressors for Canal Structures, Outlet Works, and Diversion Dams (Basin IV)
Where the Froude number of the incoming flow is low, the hydraulic jump produces objectionable waves downstream. This study generalizes the design of two stilling basins and two types...

Fluid Resistance to Cylinders in Accelerated Motion
Cylinders of various length-diameter ratios were accelerated vertically with constant drive forces; correlation between coefficient of resistance and acceleration modulus using Reynolds...

Suppression of the Fluid-Induced Vibration of Circular Cylinders
Investigation made to evolve means of suppressing dangerous, wind induced oscillation of tall steel smokestacks; tests of plain and modified cylinders made over wide range of cylinder...

 

 

 

 

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