
Momentum Transport
... {+ sign upstream Mach number for a CJ-detonation (compression wave) - sign upstream Mach number for a CJ-deflagration (subsonic combustion wave)} where ...
... {+ sign upstream Mach number for a CJ-detonation (compression wave) - sign upstream Mach number for a CJ-deflagration (subsonic combustion wave)} where ...
Slide 1
... It is equal to 1 N/m2. The pressure at sea level is about 1.01 x 105 Pa. This gives us another unit for pressure, the atmosphere, where 1 atm = 1.01 x 105 Pa ...
... It is equal to 1 N/m2. The pressure at sea level is about 1.01 x 105 Pa. This gives us another unit for pressure, the atmosphere, where 1 atm = 1.01 x 105 Pa ...
Flow of viscous fluid
... Equation (6.18) is called the vorticity transport equation. This equation shows that the change in vorticity due to fluid motion equals the diffusion of vorticity by viscosity. The term 1/Re corresponds to the coefficient of diffusion. Since a smaller Re means a larger coefficient of diffusion, the ...
... Equation (6.18) is called the vorticity transport equation. This equation shows that the change in vorticity due to fluid motion equals the diffusion of vorticity by viscosity. The term 1/Re corresponds to the coefficient of diffusion. Since a smaller Re means a larger coefficient of diffusion, the ...
Phases and Behavior of Matter ppt
... observed that the amount of water which flowed outside the pool was equal to the amount of his body that was immersed. Since this fact indicated the method of explaining the case, he did not linger, but moved with delight, he leapt out of the pool, and going home naked, cried aloud that he had found ...
... observed that the amount of water which flowed outside the pool was equal to the amount of his body that was immersed. Since this fact indicated the method of explaining the case, he did not linger, but moved with delight, he leapt out of the pool, and going home naked, cried aloud that he had found ...
Ore-forming magmatic-hydrothermal systems
... An integrated hydrodynamic process model for the Bingham porphyry-Cu-Mo-Au system The fluid flow structure and evolving temperature distribution in magmatic-hydrothermal systems control the location and degree of metal enrichment in major ore deposits, but is also relevant to the understanding of er ...
... An integrated hydrodynamic process model for the Bingham porphyry-Cu-Mo-Au system The fluid flow structure and evolving temperature distribution in magmatic-hydrothermal systems control the location and degree of metal enrichment in major ore deposits, but is also relevant to the understanding of er ...
On the suppression of turbulence by a uniform magnetic field
... i.e. t, < to. N is usually described as the magnetic interaction parameter and may also be interpreted (when R, < 1) as the ratio of the magnitude of the Lorentz force I(0~ hA h,l ) to the magnitude of the non-linear part of the inertia force Ju.‘17111 in the equation of motion.? The preferential da ...
... i.e. t, < to. N is usually described as the magnetic interaction parameter and may also be interpreted (when R, < 1) as the ratio of the magnitude of the Lorentz force I(0~ hA h,l ) to the magnitude of the non-linear part of the inertia force Ju.‘17111 in the equation of motion.? The preferential da ...
STUDY GUIDE FOR 8th GRADE PHYSICAL SCIENCE TEST “
... -how to determine pressure using formula P = F A -what causes pressure of a gas (particles colliding) -how pressure changes with altitude changes -that Earth’s atmosphere exerts pressure on everything within it -that at sea level, the atmospheric pressure is 101.3kPa -Boyle’s Law (as volume decrease ...
... -how to determine pressure using formula P = F A -what causes pressure of a gas (particles colliding) -how pressure changes with altitude changes -that Earth’s atmosphere exerts pressure on everything within it -that at sea level, the atmospheric pressure is 101.3kPa -Boyle’s Law (as volume decrease ...
The amplification of a weak applied magnetic field by
... This is the case of moderate conductivity which may well arise in problems of astrophysical and geophysical interest. The condition implies that h $ v, so that, according to Batchelor, random magnetic field perturbations decay to zero in the absence of electromotive forces. The reason for this is th ...
... This is the case of moderate conductivity which may well arise in problems of astrophysical and geophysical interest. The condition implies that h $ v, so that, according to Batchelor, random magnetic field perturbations decay to zero in the absence of electromotive forces. The reason for this is th ...
1 - vnhsteachers
... (12) A2 = 5.84 x 10-3 m2 BERNOULLI’S PRINCIPLE Bernoulli’s principle states that swiftly moving fluids exert less pressure than slowly moving fluids. AIR FOILS An air foil is a body (like an airplane wing or propeller blade) designed to provide a desired reaction force when in motion. AIR MOLECULE M ...
... (12) A2 = 5.84 x 10-3 m2 BERNOULLI’S PRINCIPLE Bernoulli’s principle states that swiftly moving fluids exert less pressure than slowly moving fluids. AIR FOILS An air foil is a body (like an airplane wing or propeller blade) designed to provide a desired reaction force when in motion. AIR MOLECULE M ...
Introduction to Fluid Mechanics - Pharos University in Alexandria
... • Definition : Flow conditions for a model test are completely similar if all relevant dimensionless parameters have the same corresponding values for model and prototype. • Pi model = Pi prototype i = 1 • Enables extrapolation from model to full scale • However, complete similarity usually not poss ...
... • Definition : Flow conditions for a model test are completely similar if all relevant dimensionless parameters have the same corresponding values for model and prototype. • Pi model = Pi prototype i = 1 • Enables extrapolation from model to full scale • However, complete similarity usually not poss ...
ELECTRONIC COMMUNICATION
... – Electrical signals can carry information quickly over wires or through the air by radio – Light, Appliances and Entertainment ...
... – Electrical signals can carry information quickly over wires or through the air by radio – Light, Appliances and Entertainment ...
Bernoulli`s equation
... solid bodies. These can be reduced by using more “streamlined” shapes, that avoid diverging streamlines (e.g., aerodynamic bike helmets (time trial cyclist), ships, aeroplanes and cars). • Surface roughness: paradoxically, a rough surface can reduce drag by reducing separation (e.g. dimple pattern o ...
... solid bodies. These can be reduced by using more “streamlined” shapes, that avoid diverging streamlines (e.g., aerodynamic bike helmets (time trial cyclist), ships, aeroplanes and cars). • Surface roughness: paradoxically, a rough surface can reduce drag by reducing separation (e.g. dimple pattern o ...
Slide 1
... It is the average density that matters; a boat made of steel can float because its interior is mostly air. An object’s density may be changed; submarines fill tanks with water to submerge, and with air to rise. ...
... It is the average density that matters; a boat made of steel can float because its interior is mostly air. An object’s density may be changed; submarines fill tanks with water to submerge, and with air to rise. ...
Megnetohydrodynamic Flow of Casson Fliuds over a Moving
... number. The result have been represented and discussed through plots for concentration, velocity and temperature. KEYWORDS: radiation, chemical reaction, Casson fluids, porous medium, stagnation point. _____________________________________________________________________________________________ 1. I ...
... number. The result have been represented and discussed through plots for concentration, velocity and temperature. KEYWORDS: radiation, chemical reaction, Casson fluids, porous medium, stagnation point. _____________________________________________________________________________________________ 1. I ...
Question 2
... Problem: A jet of liquid issues horizontally from a small orifice in the vertical side of the tank. Derive an expression for the actual velocity of the jet v if the jet falls a distance y vertically in a horizontal distance x measured from the vena contracta. If the head of liquid above the orifice ...
... Problem: A jet of liquid issues horizontally from a small orifice in the vertical side of the tank. Derive an expression for the actual velocity of the jet v if the jet falls a distance y vertically in a horizontal distance x measured from the vena contracta. If the head of liquid above the orifice ...
Turbulence

In fluid dynamics, turbulence or turbulent flow is a flow regime characterized by chaotic property changes. This includes low momentum diffusion, high momentum convection, and rapid variation of pressure and flow velocity in space and time.Flow in which the kinetic energy dies out due to the action of fluid molecular viscosity is called laminar flow. While there is no theorem relating the non-dimensional Reynolds number (Re) to turbulence, flows at Reynolds numbers larger than 5000 are typically (but not necessarily) turbulent, while those at low Reynolds numbers usually remain laminar. In Poiseuille flow, for example, turbulence can first be sustained if the Reynolds number is larger than a critical value of about 2040; moreover, the turbulence is generally interspersed with laminar flow until a larger Reynolds number of about 4000.In turbulent flow, unsteady vortices appear on many scales and interact with each other. Drag due to boundary layer skin friction increases. The structure and location of boundary layer separation often changes, sometimes resulting in a reduction of overall drag. Although laminar-turbulent transition is not governed by Reynolds number, the same transition occurs if the size of the object is gradually increased, or the viscosity of the fluid is decreased, or if the density of the fluid is increased. Nobel Laureate Richard Feynman described turbulence as ""the most important unsolved problem of classical physics.""