heat will be introduced to the device and the output of light remains constant, ensuring that all pictures are exposed to the same degree of lighting which is a requirement for effective image analysis. Once all of the settings have been in place fluid will be passed through the device and pictures of the system will be taken at periodic intervals over the course of several days. As has been described, air will be passed through the channel to allow greater visibility when images are taken. When…
Introduction The Pennsylvania Jackfork Group is located in the Ouachita Mountains, occupying Arkansas and Oklahoma. Several authors interpreted the Pennsylvania Jackfork Group as a classic flysch sequence in a submarine fan setting, dominated by turbidites. Shanmugam and Moiola (1995) reveal contrary evidence for the origin of these beds. They interpret the origin of these beds to be from debris-flow, slump, and bottom-current because slabbed samples from sedimentary features appear “massive”…
Evaporation Model, Kohler modification and Surface Phenomena The process of microdroplet evaporation is associated with the mass and heat transport through the microdroplet surface [1,2] . [2]: [ 1] Where a is the droplet radius, Pa and Pcc are the saturated vapor pressures near the droplet surface and far from the droplet respectively. Ta and Tcc are the temperatures at the microdroplet surface and the reservoir. D is the diffusion constant of vapor in the ambient gas. M and are the…
fraction of the components, are solved at first. Transient conservation equations are as follow: Mass conservation (1) (∂(ε(1-s)ρ_g))/∂t+∇.(ρ_g u ⃗_g )=S_m In this equation u ⃗_g is superficial velocity vector of gas mixture, which related to intrinsic fluid velocity U as following: (2) (u_g ) ⃗=ε(1-s)U ⃗ In the gas transfer channel, the porosity is equal one and the liquid water volume fraction is zero; so in this area, the superficial velocity will be equal to the intrinsic velocity. Momentum…
What is refraction Refraction is the bending of light when it passes from one medium to another, as light travels through one medium such as air it will travel at a certain velocity but once it enters another medium such as glass it will change direction due to the increase in density of the medium which slows down the velocity of the light. The amount that the light bends as it travels through a medium depends on how drastic the difference in optical density is. For example if light were to…
between adsorbate and adsorbent, while a higher value for Kf indicates higher rate of adsorption. 2.5.5.2. Adsorption kinetics Most of the adsorption/desorption transformation processes of various solid phases are time dependent. To understand the dynamic interactions of pollutants with solid phases and to predict their fate with time, knowledge of the kinetics of these processes is important. Various kinetic models have been used, whereas in this study the pseudo-first-order and…
A. WAVES Normally when energy is transferred from one place to another a disturbance is involved. Waves can travel through air, water, and solid materials. Mechanical and electromagnetic waves are the two types of waves. Medium is the material in which a wave travels. Mechanical Waves When a source of energy causes a medium to vibrate, a mechanical wave is formed. Mechanical waves require a medium to travel. There are two different types of mechanical waves: longitudinal and transverse waves.…
The Beaufort Gyre, a major anticyclonic circulation feature in the Arctic Ocean, hosts a substantial fraction of the overall Arctic freshening citep{haine2015arctic}. The large-scale gyre circulation has been directly linked to its freshwater content (FWC) via the process of Ekman pumping that converges relatively fresh surface waters and deepens the halocline citep[e.g.][]{proshutinsky2002role}. The Ekman pumping arises due to transient anticyclonic winds that cause significant gyre…
Performance of centrifugal pump CONTENTS Table of figures 2 Objective 3 Introduction 3 Theory 3 Observe result 4 Sample calculation 10 Discussion of the result 11 Conclusion 11 References 12 Table of figures Figure1. Experimental calculation for pump 1(30HZ) 4 Figure2. Operating characteristic curve (pump1 30Hz) 5 Figure3. Experimental calculation for pump 1(40HZ) 6 Figure4. Operating…
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…