Computational fluid dynamics

The convergent-divergent process is an application of Bernoulli’s principle. (If a fluid flowing through a tube reaches a constriction or narrowing of the tube, the velocity of the fluid flowing through the constriction increases and the pressure decreases. The opposite is true when the fluid leaves the constriction; velocity decreases and pressure increases.) Boyle’s law and Charles’ law also come into play during this process. Boyle’s…

Objective: The lab we completed today was “Equilibrium of coplanar forces”. The objectives of todays lab was to study the composition and equilibrium as well as study the rectangular resolution and equilibrium of coplanar forces. Principles being examined: The main principle being examined in this experiment is the fact that several forces that line on a plane and pass through the same point can be balanced by a single force that is passing through the same point. We do this by finding the…

Drag force is an aerodynamic force which acts parallel and opposite to the motion of the object when it moves through a fluid. It is caused by friction and differences in air pressure. There are many factors can affect the magnitude of drag force as with aircraft lift. The drag depends linearly on the shape and size of the object moving through the air. The object’s cross-sectional shape determines the form drag which is created by the pressure variation around the object and affects the…

Ultrasonic interferometer Working principle An ultrasonic interferometer is a simple and direct device to determine the ultrasonic velocity in liquids with a high degree of accuracy. An ultrasonic interferometer is used to determine the accurate ultrasonic velocity in liquids. The principle used in the measurement of velocity is based on the accurate determination of the wavelength in the medium. The principle of ultrasonic interferometer for the measurement of velocity is determination of the…

Theoretical Calculations Conclusion Bibliography Explaining Flight 1.1: The Physics of Bird Flight: Components: I. Drag: (Air Resistance) The force opposite to the force of the motion of an object through a fluid. (Fluid in this report refers to the medium…

small, smoke column will not create in the atrium and floding flow will not occur to vent smoke. Figure ‎2.8 Flow at the early stage of adjacent floor fire[13]. Table ‎2.4 Conditions of each simulation [13]. By watching the calculation results dynamic display, then the time and location of the flooding flow can be obtained.Floding flow did not occur till the simulation end time at 800 second in the atria with size 11×11×27m and 12×12×27m. In the range of designed HRR of fire (100 kW to 2000…

Background Knowledge The question for this experiment is, Does the angle of an airplane wing affect the average rate of descent of the plane while gliding? So, the thing that is being tested is if the angle of an airplane wing, which determines the average rate of descent. In this experiment, the average rate of descent will be found by dividing the distance the plane traveled by the time it took the plane to land. First, how planes fly needs to be understood. Airplanes fly because the wings…

4.8 How do the Hydropower Plants Work? Hydropower is the combination of head and flow. The Head is water pressure created by the difference in elevation between the water intake and turbine, expressed as a distance (feet or meters) or as pressure (pounds per square inch). Similarly, flow is the quantity of water, expressed as volume per second or minute (gallons per minute, cubic feet per second). In a typical hydropower system, water is diverted from a stream into a pipeline, where it is…

Fig.\ref{Str_1_T} compares the jet trajectory measurement for the open nozzle configuration at the two blower velocities. Fig.\ref{Str_1_W} compares the weight distribution along the centerline axis, normalized with respect to the total mass distributed. Fig.\ref{Profiles_1}.a shows the centerline profile of the straw distribution on the ground, normalized to their respective maximum weights and Fig.\ref{Profiles_1}.b shows the jet spreading along curvilinear trajectory $\zeta$.…

A1 Lab Chordwise Pressure Distribution on an Aerofoil with a Flap Student Name: REUBEN LEW WAI CHOON Tutor: COLLIN GREATWOOD Date of Lab: 7TH NOVEMBER 2014 Summary A 23015 NACA aerofoil was tested in a wind tunnel with a Re number of 4.28 x 105 and Mach number of 0.07. The pressure distribution over the aerofoil was recorded and used to derive the coefficient of lift, pressure drag and pitching moment. Variations of these parameters with incidence and flap deflection were investigated. Thin…