Fluid dynamics

location. In land this called declination error. * Deviation * Caused by localized magnetic fields in the aircraft. * Dip Errors COMPASS SWINGING – a maintenance procedure that corrects a magnetic compass for deviation error. COMPASS FLUID – similar to kerosene and used to dump the oscillation of the compass card. COMPASS ROSE – a location on an airport where an aircraft can be taken to have its compasses “swung”. Lines are painted on the rose to mark the magnetic in 30 degrees…

Stairmands data is based on a cyclone separator with a characteristic diameter of 203mm and a height of 812mm. The flow rate is used to determine this characteristic diameter, which then along with the flow rate, change in density and dynamic viscosity is used to determine the scaling factor. The scaling factor is then applied to the particle size distribution, and hence the collection efficiency is determined. To ensure correct flow through the cyclone, the pressure drop is calculated…

Advanced Reservoir Engineering Well Testing Coursework Fauzan Shamsudeen 3302446 20th May, 2016 Table of contents Contents Table of contents 2 Question 1 3 Question 2 3 Question 3 4 Question 4 5 Question 5 6 Question 6 6 Question 7 6 Question 8 7 Question 9 7 Question 10 7 Question 11 8 Question 12 8 Question 13 10 Question 14 10 Reference 12 Question 1 Fig 1.0 Early time region (ETR) is the A region in fig 1.0 above. Middle time region (MTR) and Late time region…

Where P is the permeability coefficient, Q is the amount of permeant passing through the material, x is the thickness of the plastic film, A is the surface area available for mass transfer, t is the time, and ∆p is the change in permeant partial pressure across the film. Hence the permeability coefficient (P) is the proportionality constant between the flow of the penetrant gas per unit film area per unit time and the driving force (partial pressure difference) per unit film thickness. The…

In this experiment, the objectives were to derive an equation for the tension in the string (which had a mass attached and was revolved in a vertical circle motion). In order to complete this, the velocity of the mass would have to be calculated using the measured tension, and this value would then be compared to the expected velocity. The second objective of this experiment was to observe how mass, velocity, and radius affect the tension of the string. These objectives were reached in this…

Degenerate Cases of Conic Sections: Conics are formed when a plane and a double cone intersect. These intersections can form a variety of conics. These include: circles, parabolas, ellipses and hyperbolas. A circle can be formed from a cone if a plane intersects with the cone at an angle perpendicular to the base of the cone. This circle is also formed by the equation: (x-h)2+ (y-k)2=r2. This equation creates a relation because the collection of points does not pass the vertical line test. To…

(3) Equation (3) gives limit moment about 11% higher than equation (2) regardless of h. One notable point is that the above solutions depend only on bend factor(h), not on r/t and R/r. Equations (1-3) are applicable only for the pure in-plane bending moment and the effect of internal pressure is not taken in to account. Also these analytical solutions consider constant wall thickness along the contour of the pipe bend cross section. However, the most of the pipe bends are made using a forming…

HYPOTHESIS The main hypothesis being investigated is that a more buoyant boat will have a higher velocity. It will encounter less water resistance as less of the hull is below the water. The secondary hypothesis is that the smaller the angle x, a surface is to the water, it will be able to skim and plane across the surface better, thus achieving greater speeds. The models of the boats will be further explained in the Methodology: Boat Design section. Experiment 1: Model A will have a velocity…

3.3 Tribological properties of Cr-B-C-N coatings in artificial seawater Fig.10 shows the friction behaviors and the mean-steady friction coefficients of Cr-B-C-N coatings sliding against SiC balls in artificial seawater. As seen in Fig.10a, it is clear that the CrCN coatings showed higher friction coefficient than other coatings during the tribo-test in artificial seawater. The initial friction coefficient of CrCN coatings was 0.17, while that of CrBCN coatings ranged between 0.14 and 0.15. For…

A water jet cutter, commonly called a water jet, is a tool that uses a very high-pressure jet of water or a mixture of water and an abrasive to cut a wide variety of materials. A water jet that does not use abrasives is referred to as a pure water jet or water-only cutting [1]. For a pure water jet (Figure 1) the water is pressurized to the range of 20 - 94 ksi, 138 - 649 MPa at the inlet and forced through an orifice with a diameter of between 0.25 - 4 mm creating a very thin high velocity…