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The space between two 20-in long concentric cylinders is filled with glycerin viscosity-8.5 x 10 3...
A viscometer is an instrument for measuring the viscosity of a fluid. In a simple form,...
A viscometer is an instrument for measuring the viscosity of a fluid. In a simple form, it consists of two concentric cylinders, with the outer cylinder fixed and the inner cylinder free to rotate. The space between the two cylinders is filled with the fluid in question, and the torque required to rotate the inner cylinder at a constant speed is measured. One such device consists of two 21.0-cm long cylinders, one 15 cm in diameter and the other 15.4...
A viscous liquid (u=0.012 lb-s/ft?p=1.79 slugs/ft) flows through the annular space between two horizontal, fixed, concentric...
A viscous liquid (u=0.012 lb-s/ft?p=1.79 slugs/ft) flows through the annular space between two horizontal, fixed, concentric cylinders. If the radius of the inner cylinder is 5.5 in. and the radius of the outer cylinder is 6.5 in., what is the pressure drop along th axis of the annulus per foot when the volume flowrate is 0.14 ft/s? Ap/ - 329 Ib/ftper ft
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 (
The viscosity of a fluid is to be measured by a viscometer constructed of two 75...
The viscosity of a fluid is to be measured by a viscometer constructed of two 75 cm long concentric cylinder. The outer diameter of the inner cylinder is 15 cm, and the gap between the two cylinders is 0.12 cm. The inner cylinder is rotated at 200 rpm, and the torque is measured to be 0.8 Nm. Determine the viscosity of the fluid. 200 rpm 0.12 cm Stationary cylinder
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....
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....
(Chapter 1) (Ans. 8.07x104 Pa.s) A concentric cylinder viscometer may be formed by rotating the inner...
(Chapter 1) (Ans. 8.07x104 Pa.s) A concentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders. For small clearances, a linear velocity profile maybe assumed in the liquid filling the annular clearance gap. A viscometer has an inner cylinder of 75 mm diameter and 150 mm height, with a clearance gap width of 0.02 mm. A torque of 0.021 N.m is required to turn the inner cylinder at 100 rpm. Determine the...
11. A viscous liquid (p48 Pa.s, p-920 kg/m) lows through the annular space between two horizontal, fixed, concentric cylinders. If the radius of the inner cylinder is 3.81 em and the radius of the...
11. A viscous liquid (p48 Pa.s, p-920 kg/m) lows through the annular space between two horizontal, fixed, concentric cylinders. If the radius of the inner cylinder is 3.81 em and the radius of the outer cylinder is 6.35em, what is the pressure drop along the axis of the annulus per meter when the volume flowrate is 0.028 mls.
11. A viscous liquid (p48 Pa.s, p-920 kg/m) lows through the annular space between two horizontal, fixed, concentric cylinders. If the radius...
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...
A viscometer is an instrument for measuring the viscosity of a fluid. In a simple form, it consists of two concentric cylinders, with the outer cylinder fixed and the inner cylinder free to rotate. The space between the two cylinders is filled with the fluid in question, and the torque required to rotate the inner cylinder at a constant speed is measured. One such device consists of two 21.0-cm long cylinders, one 15 cm in diameter and the other 15.4...
A viscous liquid (u=0.012 lb-s/ft?p=1.79 slugs/ft) flows through the annular space between two horizontal, fixed, concentric cylinders. If the radius of the inner cylinder is 5.5 in. and the radius of the outer cylinder is 6.5 in., what is the pressure drop along th axis of the annulus per foot when the volume flowrate is 0.14 ft/s? Ap/ - 329 Ib/ftper ft
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 (
The viscosity of a fluid is to be measured by a viscometer constructed of two 75 cm long concentric cylinder. The outer diameter of the inner cylinder is 15 cm, and the gap between the two cylinders is 0.12 cm. The inner cylinder is rotated at 200 rpm, and the torque is measured to be 0.8 Nm. Determine the viscosity of the fluid. 200 rpm 0.12 cm Stationary cylinder
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....
(Chapter 1) (Ans. 8.07x104 Pa.s) A concentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders. For small clearances, a linear velocity profile maybe assumed in the liquid filling the annular clearance gap. A viscometer has an inner cylinder of 75 mm diameter and 150 mm height, with a clearance gap width of 0.02 mm. A torque of 0.021 N.m is required to turn the inner cylinder at 100 rpm. Determine the...
11. A viscous liquid (p48 Pa.s, p-920 kg/m) lows through the annular space between two horizontal, fixed, concentric cylinders. If the radius of the inner cylinder is 3.81 em and the radius of the outer cylinder is 6.35em, what is the pressure drop along the axis of the annulus per meter when the volume flowrate is 0.028 mls.
11. A viscous liquid (p48 Pa.s, p-920 kg/m) lows through the annular space between two horizontal, fixed, concentric cylinders. If the radius...
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...
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