Computational fluid dynamics

is a classic technique that visualizes flow patterns by using colored dye, or other tracking material. The visualized flow pattern is recorded by camera subsequently. Flow visualization is needed when designing and testing any components related to fluid flow such as car body, jet engine, aircraft, etc. Many fields of industry are related to analyze how an object is affected by surrounding flow field. The Reynolds number is used to predict the flow patterns. Reynolds number is given in Equation…

The purpose of this lab is to evaluate the relationship between kinetic friction coefficient and static coefficient as well as measure the coefficients of the two friction. Friction is the force that resists relative tangential movement. Its direction is opposite to the relative velocity. Kinetic friction and static friction are two types of friction. Static Friction happens when the two surface in contact remains relatively stationary to each other. It reaches its maximum value before the…

term does also appear in the physics of fluids motion. Fluids are things that can flow such as gas, water or oil. In fluid motion physics there are two theories that are involved with the law of conservation and they are Bernoulli’s law and continuity equation. Bernoulli’s law is derived from the energy conservation between “kinetic energy and static energy associated with pressure” of an ideal fluid (Encyclopaedia Britannica, n.d.). An ideal fluid is a fluid with a steady flow, incompressible,…

Table of Contents 1. Fluid Mechanics 1.1 Main Branches 1.1.1 Fluid Statics 1.1.2 Fluid Dynamics 1.2 Non-Newtonian and Newtonian Fluids 1.3 Fluids in technology 1.4 Fluid mechanics serving role in society 2. Capillary Effect 3. Self Perpetual motion 1. Fluid mechanics Fluid mechanics is related to the fluids that are in motion and forces acting on them. Fluid mechanics has two branches fluid statics and fluid dynamics. In Fluid Mechanics we actually observe fluid motion and…

Coulter Counter Method. Schematic Diagram Diagram 1: The basic setup of coulter counter method. Test tube containing conducting fluid placed in the beaker containing same conducting fluid. Orifice in the test tube connect the circuit. Electrodes are placed in beaker and test tube and voltage is applied. Vacuum is applied in the test tube to allow fluid movement from beaker to test tube. Counting circuit will calculate the amount of particle and pulse height analyser will measure the particle…

COMPARATIVE STUDY ON FRICTION WELDED AND ELECTRON BEAM WELDED JOINTS MADE BY 20VNiMoCr120 STEEL Gabriela IANCULESCU*, Lucia Violeta MELNIC, Marian Andrei GURĂU Ovidius University of Constanta Abstract: In the paper there are presented experimental results concerning mechanical characteristics of friction-welded joints in comparison with electron beam welded joints, made by 20VNiMoCr120 heat-resistant steel, which are part of some elements working at high pressure and temperature. The paper…

1- Summary This study is based on the analysis of pressure distribution around a NACA 23015 airfoil section with a flap of length equal to the 30% of the cord at different angles of incidence and flap settings. The experiment was performed in a non –return wind tunnel at a Reynolds number of 4.4×〖10〗^5 and at a Mach number of 0.073. It is of note that increasing incidence will increase lift produced until the critical angle of attack, where the airfoil stalls; moreover, deploying a flap will…

The blast wave generating device developed for this project consists of two sections that are equivalent in cross sectional area to the expansion section channel of the shock tube; the front section has internal damper blades that rotate from a vertical position to a horizontal position, and the rear section is equipped with internal flow straighteners. The device is to be placed in series between the expansion section and the expansion section channel, and bolted together with the flanges of…

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The bouncy ball is way bouncy then the tennis ball, because the bouncy ball is made of the rubber and when it hits the ground it gets compressed, or squished and because it is very elastic, it returns to its original shape very quickly. That's the only reason why the bouncy ball is way bouncier than the tennis ball. Bouncy ball was made by the one and only norman stingley who worked at the california chemist. He used to just experiment stuff with rubber on his spare time. By doing all the…