Computational fluid dynamics

should be transmitted without being obstructed. After familiarized with the lab instruments, the LabVIEW program for AE 460 should be started. Then, the current ambient pressure, the current ambient temperature, and a calibration coefficient for dynamic pressure correction, q correction factor, should be inputted into the program under the…

Introduction Bernoulli principle is a statement of conservation of energy per unit mass for an ideal fluid in steady motion, where it states the sum of pressure, kinetic and potential energies per unit volume is constant (Munson, et al., 2013). Venturi effect is where the pressure of the fluid decreases which causes its velocity to increase as it passes through a constricted section of a pipe. This is the basis of this report’s investigation. The aim of this investigation is to compare the flow…

Therefore, if the pressure filter is semi blocked (not fully blocked), the flow rate decrease at the orifice makes the pressure at pump will be increased and suddenly, the pressure decreases after pass the orifice. Schaschke (2005) stated that a drop in fluid pressure because the increase in the cross-section causes a reduction in velocity and an increase in pressure. The kinetic energy is decreased and the potential energy which is in a form of pressure will increase simultaneously then, they…

production rate and helps understanding how the flow rate is affected by different parameters (Lund). Additionally, in order for fluid to flow there has to be a pressure gradient. As this pressure gradient increases the fluid flow rate increases as well. The Darcy equation incorporates pressure gradient by a negative sign in the equation. The negative sign indicates that fluid in a high pressure area will flow to an area of low pressure. Pressures are related to extracting hydrocarbon from a…

object it comes across. The variation of this pressure has varying effects on types of objects. According to aero-dynamics, the objects which come across the wind are classified as bluff bodies and stream-lined bodies. Bluff bodies are the ones with sharp edges and regular geometrical features. Stream-lined bodies are the ones which have a definite stream-line shape. Wind being a fluid, behaves differently when it strikes either type of bodies. As the wind strikes the stream-line bodies, it…

Multi-stage fracturing is an advanced drilling technology that enhances the production capabilities through maximizing the contact area of unconventional wells with the reservoir production zones. During the fracturing process, a special fluid (primarily a mixture of sand and water) is blown out at a high pressure into the shale rock formation creating channels through which hydrocarbons can easily migrate to the well. Multi-stage fracturing is a combination of fracturing and plugging processes.…

properties of basic fluid flow we which know today as “Bernoulli’s Principle” (The Doc). Though many are informed on the basis of Bernoulli’s Principle, how many of us can say we are familiar with the math behind this theory? To refresh your memory, Bernoulli’s Principle states that the pressure of a fluid decreases in areas where the flow velocity increases. Imagine…

control volume, operating at steady state. Pump: The liquid condensate leaving the condenser at the state 1 is pumped to the operating pressure of the boiler. The pump operation is considered isentropic. Boiler: The heat is supplied in the working fluid (feed water) in the boiler and thus vapour is generated. The vapour leaving the boiler is wther saturated at the state 3 or superheated at the state 311, depending upon the amount of heat supplied in the boiler. Steam power plant that operates…

Surface and center temperature of the mushroom, ambient humidity and temperature of vacuum chamber have been measured and recorded by the data logger inside the vacuum chamber (see Fig. 1). On the other hand, the control unit that records the pressure data is located outside the vacuum chamber (see Fig. 1). The measured data saved for each 10 seconds. Before starting the cooling, vacuum pump runs half an hour for stabilizing the system. Experiments carried out for three replicates and the…

Superfluid helium or He II is a macroscopic quantum fluid that exhibits extraordinary properties. %By applying the limit of low flow velocities, The behavior of the fluid can be understood using a Landau - Tisza model, where He II is considered to be a two-component fluid with independent velocity fields: the inviscid superfluid of density $\rho_s$, and the normal fluid of density $\rho_n$, where the total density $\rho$ = $\rho_s$ + $\rho_n$ \cite{Tisza,Landau}. The superfluid has neither…