Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-lines are along...
Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-lines are along the z-axis, and the radii exist in the r-direction. The inner cylinder has a radius of r, and the outer cylinder has a radius rb. The inner and outer cylinders are stationary. Gravity exists in the negative z- direction, whereas a constant pressure gradient exists in the positive z-direction. The fluid contained between the cylinders is assumed to be Netwonian, incompressible, isotropic and isothermal. The flow of the fluid is assumed steady and laminar. Construct an expression for the z-component of the velocity, assuming no-slip boundary conditions on the cylinders. Also determine the magnitude of the pressure gradient required to have flow exist in the positive z-direction.
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Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-lines are along...
Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-line is along the z-axis, and the radii exist in the r-direction. The inner cylinder has a radius o...
Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-line is along the z-axis, and the radii exist in the r-direction. The inner cylinder has a radius of ra and the outer cylinder has a radius rb. The inner cylinder moves in the positive z-direction with a velocity W while the outer cylinder is held stationary. The fluid contained between the cylinders is assumed to be Netwonian, incompressible, isotropic and isothermal. The flow of the fluid...
Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-line is along the z-axis, and the radii exist in the r-direction. The inner cylinder has a radius o...
Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-line is along the z-axis, and the radii exist in the r-direction. The inner cylinder has a radius of ra and the outer cylinder has a radius Tb. The inner cylinder rotates with an angular velocity of w whereas the outer cylinder is stationary. There is no pressure gradient applied nor gravity. The fluid contained between the cylinders is assumed to be Netwonian, incompressible, isotropic and isothermal....
4. Consider the situation of radial flow between two concentric cylinders. The outer cylinder has a...
4. Consider the situation of radial flow between two concentric cylinders. The outer cylinder has a radius of R and the inner cylinder has a radius KR. Assume flow is only in the radial direction and assume v, = v(r). Use the continuity equation and the relevant momentum balance equations to derive an expression for the pressure difference Pi-Po between the outer and inner cylinders as a function of the volumetric flow rate with L being the length of the...
An incompressible Newtonian fluid is contained between two long concentric cylinders of radii AR (< 1) and R, as sho...
An incompressible Newtonian fluid is contained between two long concentric cylinders of radii AR (< 1) and R, as shown in the figure. The inner cylinder rotates with an angular velocity Ω (a) Compute the velocity distribution between the cylinders. End effects caused by (b) Compute the torque required to hold the outer cylinder stationary. (8 Pts)
An incompressible Newtonian fluid is contained between two long concentric cylinders of radii AR (
Navier-Stokes Equation: An incompressible Newtonian liquid is confined between two concentric cy...
Navier-Stokes Equation:
An incompressible Newtonian liquid is confined between two
concentric cylinders of infinite length—a solid inner cylinder of
radius RA and a hollow outer cylinder of radius RB. The inner
cylinder rotates at angular velocity ω and the outer cylinder is
stationary. The flow is steady, laminar, and two-dimensional in the
r-θ plane. The flow is rotationally symmetric, meaning that nothing
is a function of the coordinate θ. The flow is also circular so
that ur=0 everywhere.
Found Uθ=...
Consider the steady laminar flow between the coaxial cylinders shown below. The inner cylinder rotates with angular velocity Omega and the outer cylinder is stationary. The no-slip condition applies a...
Consider the steady laminar flow between the coaxial cylinders shown below. The inner cylinder rotates with angular velocity Omega and the outer cylinder is stationary. The no-slip condition applies at the inner and outer cylinder surfaces and we are considering the cylinders to be very long in the z-direction, hence we may ignore edge effects near the top and bottom surfaces. a) What are the boundary conditions on the cylinder surfaces at r=R1 , and r= R2 b) Simplify and...
2. (5 points) For a pressure-driven axial flow between long concentric cylinders, find the expression for...
2. (5 points) For a pressure-driven axial flow between long concentric cylinders, find the expression for the velocity profile in the z direction if the inner cylinder is of radius b and outer cylinder is of radius a. This problem relates to flow in an airway or blood vessel in which a central catheter has been placed. solid (a) Show that LILLLLLLLLLLLL where b = Ba and B<1. Confirm that b =0 recovers Eq. (9.45) we learned in class. Eq....
Fluid is Non-Newtonian. (3) Consider the steady laminar flow between the coaxial cylinders shown below. The...
Fluid is Non-Newtonian.
(3) Consider the steady laminar flow between the coaxial cylinders shown below. The inner cylinder rotates with angular velocity 2 and the outer cylinder is stationary. The no-slip condition applies at the inner and outer cylinder surfaces and we are considering the cylinders to be very long in the 2-direction hence we may ignore edge effects near the top and bottom surfaces. - R2 Assume that gravity is negligible, v, is zero and that are zero for...
3.0, Radial Flow between Concentric Spheres Consider an isothermal, incompressible fluid flowing radially between t...
3.0, Radial Flow between Concentric Spheres Consider an isothermal, incompressible fluid flowing radially between two concentric porous spherical shells. (See Fig. 3.0.) Assume stecady laminar flow withu- ul) Direction of flow flow between concentric porous spheres. Fig. 10. Radial Note that here the velocity is not assumed zero at the solid surfaces. Show by use of the cquation of continuity that a. (3.0- where y is a constant. b. Show by use of the equations of motion that the pressure...
A long coaxial cable is made of two concentric hollow cylinders of radii a=2.1 cm and...
A long coaxial cable is made of two concentric hollow cylinders
of radii a=2.1 cm and b=8.6cm. In the inner cylinder runs a current
I, and in the outer cylinder runs the same current in the other
direction.
What is the self induction of the cable per unit length?
Give answer in units of H/m. Use
パ0 Gl1 Gl1 140-4π * 10-1 H / m
Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-line is along the z-axis, and the radii exist in the r-direction. The inner cylinder has a radius of ra and the outer cylinder has a radius rb. The inner cylinder moves in the positive z-direction with a velocity W while the outer cylinder is held stationary. The fluid contained between the cylinders is assumed to be Netwonian, incompressible, isotropic and isothermal. The flow of the fluid...
Consider two concentric, infinitely long cylinders. The cylinders are oriented such that the center-line is along the z-axis, and the radii exist in the r-direction. The inner cylinder has a radius of ra and the outer cylinder has a radius Tb. The inner cylinder rotates with an angular velocity of w whereas the outer cylinder is stationary. There is no pressure gradient applied nor gravity. The fluid contained between the cylinders is assumed to be Netwonian, incompressible, isotropic and isothermal....
4. Consider the situation of radial flow between two concentric cylinders. The outer cylinder has a radius of R and the inner cylinder has a radius KR. Assume flow is only in the radial direction and assume v, = v(r). Use the continuity equation and the relevant momentum balance equations to derive an expression for the pressure difference Pi-Po between the outer and inner cylinders as a function of the volumetric flow rate with L being the length of the...
An incompressible Newtonian fluid is contained between two long concentric cylinders of radii AR (< 1) and R, as shown in the figure. The inner cylinder rotates with an angular velocity Ω (a) Compute the velocity distribution between the cylinders. End effects caused by (b) Compute the torque required to hold the outer cylinder stationary. (8 Pts)
An incompressible Newtonian fluid is contained between two long concentric cylinders of radii AR (
Navier-Stokes Equation:
An incompressible Newtonian liquid is confined between two
concentric cylinders of infinite length—a solid inner cylinder of
radius RA and a hollow outer cylinder of radius RB. The inner
cylinder rotates at angular velocity ω and the outer cylinder is
stationary. The flow is steady, laminar, and two-dimensional in the
r-θ plane. The flow is rotationally symmetric, meaning that nothing
is a function of the coordinate θ. The flow is also circular so
that ur=0 everywhere.
Found Uθ=...
2. (5 points) For a pressure-driven axial flow between long concentric cylinders, find the expression for the velocity profile in the z direction if the inner cylinder is of radius b and outer cylinder is of radius a. This problem relates to flow in an airway or blood vessel in which a central catheter has been placed. solid (a) Show that LILLLLLLLLLLLL where b = Ba and B<1. Confirm that b =0 recovers Eq. (9.45) we learned in class. Eq....
Fluid is Non-Newtonian.
(3) Consider the steady laminar flow between the coaxial cylinders shown below. The inner cylinder rotates with angular velocity 2 and the outer cylinder is stationary. The no-slip condition applies at the inner and outer cylinder surfaces and we are considering the cylinders to be very long in the 2-direction hence we may ignore edge effects near the top and bottom surfaces. - R2 Assume that gravity is negligible, v, is zero and that are zero for...
3.0, Radial Flow between Concentric Spheres Consider an isothermal, incompressible fluid flowing radially between two concentric porous spherical shells. (See Fig. 3.0.) Assume stecady laminar flow withu- ul) Direction of flow flow between concentric porous spheres. Fig. 10. Radial Note that here the velocity is not assumed zero at the solid surfaces. Show by use of the cquation of continuity that a. (3.0- where y is a constant. b. Show by use of the equations of motion that the pressure...
A long coaxial cable is made of two concentric hollow cylinders
of radii a=2.1 cm and b=8.6cm. In the inner cylinder runs a current
I, and in the outer cylinder runs the same current in the other
direction.
What is the self induction of the cable per unit length?
Give answer in units of H/m. Use
パ0 Gl1 Gl1 140-4π * 10-1 H / m
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