1. In kinematic approach, the force which creates the translation of body is not taken into consideration. 2. Equations which satisfy the dimensional homogeneity can be used in any unit system without any modification. 3. For a fluid in rest, any force other than the mass forces and the friction forces are not involved into the problem. 4. Bernoulli Equation can be used only under the condition that the flow is uniform. 5. In a conical pipe, if the flow is steady (i.e. permanent), the streamlines and the path lines overlap with cach other. 6. Imagine a horizontal conical closed conduit flow. If the diameter of the pipe decreases in streamwise direction, the piezometric height decreases in the direction of the flow as well. 7. In a 2-dimensional flow, the time averaged velocity in the third direction (i.e. perpendicular the major flow directions) is equal to zero. 8. In a flow domain, if the flownet is getting denser in streamwise direction, the pressure decreases in the same direction. 9. When the fluid temperature increases, the thickness of the boundary layer near the wall decreases. 10. In a closed-conduit flow, the angular deformation near the wall is smaller than the pipe axis. 11. In a closed-conduit flow, the shear stress is maximum along the centerline of the pipe. 12. For a flow pass over an infinitely large plate, the thickness of the region where the viscous effects are dominant increases as the velocity increases. 13. Creeping flow around a body can be produced only if the Reynolds number is too high. 14. The dimples on the golf ball push the separation point towards the upstream of the ball. Hence the ball can translate (go) to farther.
1. In kinematic approach, the force which creates the translation of body is not taken into consideration. 2. Equations which satisfy the dimensional homogeneity can be used in any unit system without any modification. 3. For a fluid in rest, any force other than the mass forces and the friction forces are not involved into the problem. 4. Bernoulli Equation can be used only under the condition that the flow is uniform. 5. In a conical pipe, if the flow is steady (i.e. permanent), the streamlines and the path lines overlap with cach other. 6. Imagine a horizontal conical closed conduit flow. If the diameter of the pipe decreases in streamwise direction, the piezometric height decreases in the direction of the flow as well. 7. In a 2-dimensional flow, the time averaged velocity in the third direction (i.e. perpendicular the major flow directions) is equal to zero. 8. In a flow domain, if the flownet is getting denser in streamwise direction, the pressure decreases in the same direction. 9. When the fluid temperature increases, the thickness of the boundary layer near the wall decreases. 10. In a closed-conduit flow, the angular deformation near the wall is smaller than the pipe axis. 11. In a closed-conduit flow, the shear stress is maximum along the centerline of the pipe. 12. For a flow pass over an infinitely large plate, the thickness of the region where the viscous effects are dominant increases as the velocity increases. 13. Creeping flow around a body can be produced only if the Reynolds number is too high. 14. The dimples on the golf ball push the separation point towards the upstream of the ball. Hence the ball can translate (go) to farther.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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