Physical Principles - Thayer School of Engineering
... The answer is that there is no contradiction because the importance of stratification is felt through the buoyancy forces, not through the mass budget. In other words, minor density differences are negligible for all practical purposes, except in combination with gravity. This last statement is gene ...
... The answer is that there is no contradiction because the importance of stratification is felt through the buoyancy forces, not through the mass budget. In other words, minor density differences are negligible for all practical purposes, except in combination with gravity. This last statement is gene ...
GROUNDWATER HYDROLOGY II
... Under such circumstances the velocity V = -Kdh/dl will also remain constant through line. In a steady-state flow system, the velocity may vary from point, but it will not vary with time at any given point. ...
... Under such circumstances the velocity V = -Kdh/dl will also remain constant through line. In a steady-state flow system, the velocity may vary from point, but it will not vary with time at any given point. ...
Chapter 2 The Continuum Equations
... mechanics, especially in meteorology and oceanography, is the phase speed of a wave. If its speed in the direction of the wave vector , k = {kj}, (i.e. in the direction perpendicular to the wave crest) is c, the components along the coordinate axes are ciK / k j where K is the magnitude of k and thi ...
... mechanics, especially in meteorology and oceanography, is the phase speed of a wave. If its speed in the direction of the wave vector , k = {kj}, (i.e. in the direction perpendicular to the wave crest) is c, the components along the coordinate axes are ciK / k j where K is the magnitude of k and thi ...
Closed Conduit: Measurement Techniques
... Cv is the coefficient of velocity. It corrects for viscous effects (energy losses) and velocity gradients (a). ...
... Cv is the coefficient of velocity. It corrects for viscous effects (energy losses) and velocity gradients (a). ...
ent 153_bernoulli equation
... • The assumption of two-dimensionality, as above, in case (a) or case (b) is not necessary. It was made merely for the sake of reducing the number of terms for convenience. • Integration of the Euler’s equation results in the familiar form of the BERNOULLI equation. ...
... • The assumption of two-dimensionality, as above, in case (a) or case (b) is not necessary. It was made merely for the sake of reducing the number of terms for convenience. • Integration of the Euler’s equation results in the familiar form of the BERNOULLI equation. ...
The lift of a wing is proportional to the amount of air diverted down
... To attempt a physical explanation of lift as it applies to an airplane, consider the flow around a 2-D, symmetric airfoil at positive angle of attack in a uniform free stream. Instead of considering the case where an airfoil moves through a fluid as seen by a stationary observer, it is equivalent an ...
... To attempt a physical explanation of lift as it applies to an airplane, consider the flow around a 2-D, symmetric airfoil at positive angle of attack in a uniform free stream. Instead of considering the case where an airfoil moves through a fluid as seen by a stationary observer, it is equivalent an ...
South China Sea - The Oceanography Society
... desired accuracy. The largest and lowest-frequency scales involve internal tides and associated weakly nonlinear internal waves with wavelengths of tens to hundreds of kilometers; they can be predicted well with simple statistical or kinematic models. These models relate the arrival time of the inte ...
... desired accuracy. The largest and lowest-frequency scales involve internal tides and associated weakly nonlinear internal waves with wavelengths of tens to hundreds of kilometers; they can be predicted well with simple statistical or kinematic models. These models relate the arrival time of the inte ...
Demonstration 1: Fluid Properties, Viscosity
... solid, it resists the deforming shearing motion between your hands. You will also notice that if your rub your hands together quickly, you will begin to feel warmth. The friction converts some of the energy of motion between your hands into thermal energy (heat). Friction is also present in all real ...
... solid, it resists the deforming shearing motion between your hands. You will also notice that if your rub your hands together quickly, you will begin to feel warmth. The friction converts some of the energy of motion between your hands into thermal energy (heat). Friction is also present in all real ...
The No-Slip Boundary Condition in Fluid Mechanics
... (i) Existence of slip would imply that the friction between a solid and fluid was of a different nature from, and infinitely less than, the friction between two layers of fluid. (ii) Satisfactory agreement between the results obtained with noslip assumption and the observations. The first argument h ...
... (i) Existence of slip would imply that the friction between a solid and fluid was of a different nature from, and infinitely less than, the friction between two layers of fluid. (ii) Satisfactory agreement between the results obtained with noslip assumption and the observations. The first argument h ...
L15 - University of Iowa Physics
... The ball is rotating clockwise. The layer of air adjacent to the ball is dragged along by the rotation, causing the flow speed to be higher on the top side. The higher pressure on the bottom causes the ball to curve upward. ...
... The ball is rotating clockwise. The layer of air adjacent to the ball is dragged along by the rotation, causing the flow speed to be higher on the top side. The higher pressure on the bottom causes the ball to curve upward. ...
Vortex Generation by Topography in Locally Unstable Baroclinic
... 2. Mathematical formulation of the model Although the Labrador Sea example described above involves nonzonal currents, as a first step toward a more realistic configuration, this paper focuses on a baroclinic zonal flow confined in an infinitely long channel of width Y*. We consider a quasigeostroph ...
... 2. Mathematical formulation of the model Although the Labrador Sea example described above involves nonzonal currents, as a first step toward a more realistic configuration, this paper focuses on a baroclinic zonal flow confined in an infinitely long channel of width Y*. We consider a quasigeostroph ...
Secondary wave lift degradation
... Present Aerodynamic Acceptance Test (AAT) for de/anti-icing fluids is defined in SAE Aerospace Standard AS 59001. The flight tests and extensive wind tunnel tests that formed the scientific basis of AAT considers predominantly lift coefficient degradation caused by de/anti-icing fluids. The reasonin ...
... Present Aerodynamic Acceptance Test (AAT) for de/anti-icing fluids is defined in SAE Aerospace Standard AS 59001. The flight tests and extensive wind tunnel tests that formed the scientific basis of AAT considers predominantly lift coefficient degradation caused by de/anti-icing fluids. The reasonin ...
Bec
... and trajectories perform loops from to QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. ...
... and trajectories perform loops from to QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. ...
... Size and flexibility can therefore have strong effects on the ratio of inertial to hydrodynamic forces. A large, flexible structure can move with the flow for a time, thereby reducing drag and lift. But this reduction in force can be had only at the expense of acquiring momentum, and the bill must b ...
Using Animations to Enhance Understanding of - ASEE
... animations in a class-room setting. The key to the first item is that humans possess different channels for processing visual and verbal representations so that information encoded in both channels will be better mastered than in either channel. Thus, narration with the animations is proposed. Moreo ...
... animations in a class-room setting. The key to the first item is that humans possess different channels for processing visual and verbal representations so that information encoded in both channels will be better mastered than in either channel. Thus, narration with the animations is proposed. Moreo ...
Hydrostatic Forces on Plane Surfaces
... gradient du/dy. Such fluids are called Newtonian fluids. On the other hand , liquid which is not subject to Newton's law of viscosity , such as a liquid pulp , a high-molecular-weight solution or asphalt , is called a non-Newtonian fluid. These fluids are further classified as shown in Fig.4 by the ...
... gradient du/dy. Such fluids are called Newtonian fluids. On the other hand , liquid which is not subject to Newton's law of viscosity , such as a liquid pulp , a high-molecular-weight solution or asphalt , is called a non-Newtonian fluid. These fluids are further classified as shown in Fig.4 by the ...
Superfluid state for photons
... Planck blackbody configuration, which consists of an empty cavity, the photons are massless and there is no number conservation, and the chemical potential is zero. Also photons do not interact with each other, therefore how can one talk about superfluidity? In expense of reducing the dimensionality ...
... Planck blackbody configuration, which consists of an empty cavity, the photons are massless and there is no number conservation, and the chemical potential is zero. Also photons do not interact with each other, therefore how can one talk about superfluidity? In expense of reducing the dimensionality ...
Closed Conduit: Measurement Techniques
... Doppler effect The transmitted frequency is altered linearly by being reflected from particles and bubbles in the fluid. The net result is a frequency shift between transmitter and receiver frequencies that is proportional to the velocity of the particles. Doppler shift Df C V= × fT sin qT ...
... Doppler effect The transmitted frequency is altered linearly by being reflected from particles and bubbles in the fluid. The net result is a frequency shift between transmitter and receiver frequencies that is proportional to the velocity of the particles. Doppler shift Df C V= × fT sin qT ...
CHAPTER 14
... average temperature difference between the fluid and the surface for the entire tube. It truly reflects the exponential decay of the local temperature difference. The error in using the arithmetic mean temperature increases to undesirable levels when ΔTe differs from ΔTi by great amounts. Therefore ...
... average temperature difference between the fluid and the surface for the entire tube. It truly reflects the exponential decay of the local temperature difference. The error in using the arithmetic mean temperature increases to undesirable levels when ΔTe differs from ΔTi by great amounts. Therefore ...
Sediment transport via dam-break flows over sloping
... The earliest work on dam-break flows considered single phase, low aspect ratio, frictionless flows in rectangular geometry taking the shallow-water equations as the governing model equations. With the bed below the dam assumed horizontal and dry, the solution for the flow is a centred simple wave th ...
... The earliest work on dam-break flows considered single phase, low aspect ratio, frictionless flows in rectangular geometry taking the shallow-water equations as the governing model equations. With the bed below the dam assumed horizontal and dry, the solution for the flow is a centred simple wave th ...
02_fluid properties
... Problem: In regions far from the entrance, fluid flow through a circular pipe is ondimensional, and the velocity profile for laminar flow is given by u(r) = umax(1-r2/R2), where R is the radius of the pipe, r is the radial distance from the center of the pipe, and umax is the maximum flow velocity, ...
... Problem: In regions far from the entrance, fluid flow through a circular pipe is ondimensional, and the velocity profile for laminar flow is given by u(r) = umax(1-r2/R2), where R is the radius of the pipe, r is the radial distance from the center of the pipe, and umax is the maximum flow velocity, ...
Intercomparison of Sediment Transport Formulas in Current - e-Geo
... two impinging regular waves propagating towards the shore, with significant wave height, Hs, and peak period, T, equal to 2 m and 11 s, and 6 m and 15 s, respectively. The first condition represents the most probable wave condition at the Portuguese West coast and the second represents a wave condit ...
... two impinging regular waves propagating towards the shore, with significant wave height, Hs, and peak period, T, equal to 2 m and 11 s, and 6 m and 15 s, respectively. The first condition represents the most probable wave condition at the Portuguese West coast and the second represents a wave condit ...
Buoyancy - UBC Math
... In these notes, we use the divergence theorem to show that when you immerse a body in a fluid the net effect of fluid pressure acting on the surface of the body is a vertical force (called the buoyant force) whose magnitude equals the weight of fluid displaced by the body. This is known as Archimede ...
... In these notes, we use the divergence theorem to show that when you immerse a body in a fluid the net effect of fluid pressure acting on the surface of the body is a vertical force (called the buoyant force) whose magnitude equals the weight of fluid displaced by the body. This is known as Archimede ...
Airy wave theory
In fluid dynamics, Airy wave theory (often referred to as linear wave theory) gives a linearised description of the propagation of gravity waves on the surface of a homogeneous fluid layer. The theory assumes that the fluid layer has a uniform mean depth, and that the fluid flow is inviscid, incompressible and irrotational. This theory was first published, in correct form, by George Biddell Airy in the 19th century.Airy wave theory is often applied in ocean engineering and coastal engineering for the modelling of random sea states – giving a description of the wave kinematics and dynamics of high-enough accuracy for many purposes. Further, several second-order nonlinear properties of surface gravity waves, and their propagation, can be estimated from its results. Airy wave theory is also a good approximation for tsunami waves in the ocean, before they steepen near the coast.This linear theory is often used to get a quick and rough estimate of wave characteristics and their effects. This approximation is accurate for small ratios of the wave height to water depth (for waves in shallow water), and wave height to wavelength (for waves in deep water).