Changes in Boundary Layer Profile for Load Speed - myassignmenthelp

Question: Write about theChanges in Boundary Layer Profile for Load Speed. Answer: The pitot 2 probe works through the principle of Bernoullis effects, which states that the stagnation pressure will be the sum of the static pressure and the dynamic pressure. At any particular pint in the pitot 2 probe, the pressure measured is equal to the static pressure of the fluid plus the dynamic pressure (Day, 2009). Therefore any pressure measures will be equal to the total pressure at that point. In terms of operation, the pitot 2 probe gives the total pressure and the static pressure values, while the pitot 1 probe gives the static pressure and the dynamic pressure values. Error in measurement of the static pressure is one of the key errors which are likely to occur when measuring the dynamic pressure within the boundary layer. This will lead to unclear static pressure and therefore the error will be transferred to the dynamic pressure values. In ability to place the static ports well are key to generating the errors in the static pressure value. And since this pressure is used to generate and calculate the dynamic pressure in the boundary layer, the occurrence of error on dynamic pressure is likely to occur (Stull, 2009). In addition, incompressible airspeed is another key source of error which will be translating of an error in the dynamic pressure. The aerodynamic load speed and the equivalent speed are almost the same and this result to difficult in measurement of the dynamic speed at the boundary layer. Human error and systems errors are key errors which are likely to be experienced in the process. The total pressure increases as the distance from the plate increases. As the distance from the plates increases, there are more molecules which are accommodated and the increase in collision is experienced (Schetz Bowersox, 2012). This leads to an increase in the total pressure from the increased collision of molecules and particles. The speed increase as well due to the increase on space of movement of the molecules is able to generate additional forces of collisions and therefore increasing the total pressure. The velocity profile is able to increase as distance from the leading edge is increased. The drag force reduces and this frees the molecules and therefore making them to move at a faster rate. The increased movements of the molecules are responsible to the reduction of the drag force. This enhances their movement and increased velocity profile. The frictional drag force reduction from the surface of the plate makes the molecules and particles free and therefore making them to increase the velocity profile. The thickness of the boundary layer as well increases. The increase in speed of the molecules makes them move further from the surface of the plate. The boundary layer grows as the distance between increases (Vila?-Guerau et al., 2015). Free movement of particles is responsible for the increase of this layer. Blunt and rough leading edges of a smooth plate are able to lead to a thicker boundary layer. On the other hand, sharp and streamlines smooth leading edges are able to lead to a thinner profile (Weyburne, 2006). The shape results from the interactions which the fluid is able to face when it interacts with the object at the leading edge level. When using a smooth plate with a sharp leading edge provides a steady flow of the fluid and therefore creating a laminar flow of the liquid. The flat plate and sharp edge are able to ensure that constant boundary layer profile is created. Since the flow is not interrupted at the initial stage, this is due to the sharp edge; the creation of the boundary profile is unlikely to change much. The boundary level at this level will be standard and unlike to change. Since the flow does not meet any obstruction at the edge part, the boundary layer is formed from that scene (Weyburne, 2014). This plate creates a laminar flow profile, and therefore a laminar profile of the boundary is created. The blunt leading edge can obstruct the flow of the fluid and therefore affect the smooth flow. The blunt edge can make a turbulent flow of the liquid and thus create a turbulent boundary profile on this section. After the turbulent flow created, the boundary layer profile is at its maximum stage (Oke, 2015). The decrease of the mass flow with the smooth plate is able to lead to a decreasing boundary profile at this stage. The smooth plate changes the flow from the turbulent flow which is created by the leading edge. The blunt leading edge creates the profile at the initial phase of the profile, and then the decreasing factor is produced by the decreasing flow rate. More importantly, the profile will be streamlined after the blunt edge since the plate is smooth. References Daly, K. (11 June 2009). "Air Caraibes Atlantique memo details pitot icing incidents". Flight International. Oke, T. R. (2015). Boundary layer climates. Place of publication not identified: Routledge. Schetz, J. A., Bowersox, R. D. W. (2012). Boundary layer analysis. Reston, Va: American Institute of Aeronautics and Astronautics. Stull, R. B. (2009). An introduction to boundary layer meteorology. New York: Springer. Vila?-Guerau, . A. J., Heerwaarden, C. C., Stratum, B. J. H., Dries, K. . (2015). Atmospheric boundary layer: Integrating air chemistry and land interactions. New York, NY: Cambridge Univ. Press. Weyburne, D. (2006). "A mathematical description of the fluid boundary layer," Applied Mathematics and Computation, vol. 175, pp.16751684 Weyburne, D.(2014). "New thickness and shape parameters for the boundary layer velocity profile," Experimental Thermal and Fluid Science, vol. 54, pp.2228