Seepage Tank Lab Report 2012 Edit Essay

We know that that the end point of the titration is reached when, after drop after careful drop of NaOH, the solution in the flask retains its pale pink color while swirling for about 30

1. What two parameters are responsible for creating the movement (filtration and reabsorption) of fluid across the capillary wall?

Where: qch, pkis the peak flow rate (m3/s) and Ach is the cross-sectional area of flow in the channel (m2).

For this experiment you will find out the rate of diffusion through air, semisolid, liquid, and permeable membrane through these lab exercises. You will also learn about tonicity, and you will learn about it through the last exercise in this lab.

3. Given that adding tubing, even the short piece, adds resistance to the flow, explain how the flow rate increased. What is the name of this effect? Explain why the simple resistance network does not apply.

1. What happened to the fluid flow rate as the radius of the flow tube was increased?

In my investigation I will vary the concentration of each reactant and I will measure time taken for the reaction to turn colourless. I will use rate=1/time formula to calculate the rate of the reaction. This will enable me to draw rate against concentration graph which I will use to

The stream lines are presented in Figure 7 for different Reynolds numbers (5, 70, and 200) and different Grashof numbers (250, 4900 and 32000). Two counterrotating cells of different shapes and intensities are observed. One counterclockwise cell occupies two-thirds to three quarters of the cavity; the other clockwise cell occupies the left. Note also that the flow driven by the cell near the moving wall and the cold by the cell near the hot wall has the same magnitude.

Early time, before water breaks through the layers of a reservoir (Fig. 1, b) in which WOR remains almost constant;

When a viscous fluid flows along a fixed impermeable wall, or past the rigid surface of an immersed body, an essential condition is that a velocity at any point on the wall or other fixed surface is zero. To the extent to which the condition modifies the general character of the flow is dependent on the viscosity of the fluid. If a body has a streamlined shape and the fluid flowing over the body has a small viscosity that is not negligible, the modifying effect appears to be confined to the narrowest regions adjacent to the solid surfaces; these are called boundary layers. Within these layers, there is a rapid change in velocity which gives rise to a large velocity gradient normal to the boundary which produces a shear stress

If the head loss is a given length of uniform pipe is measured at different at different values of the velocity, it will be found that, as long as the velocity is low enough to secure laminar flow, the head loss, due to friction, will be directly proportional to the velocity. But with the measuring velocity, at some point where the visual observation in a transparent tube would show that the flow changes from laminar to turbulent, there will be an abrupt increase in the rate at which the head loss varies. If the logarithms of those two variables are plotted on linear scales or if the values are plotted directly on log-log paper, it will be found that, after a certain transition region has been passed, lines will be obtained with slopes.

Therefore in wall-bounded flows it is important to not only understand how energy is transferred across various sizes of eddies at a given geometric location but to also understand the interaction of various sizes of eddies at various distances from the wall.

Inlet valve, V1 and outlet valve, V2 was control until the straight identifiable line of dye was achieved. The flow was the laminar flow and was observed.

Figure 1 shows a picture taken of a graph of the tide flowing through the barrier when it’s open and closed. Time is on the x-axis and water level is on the y-axis. It is shaped like a sin graph when the gates are open because the water level rises as the tide comes in and then falls until the next tide arrives.

- To show that there are two distinct types of flow and to determine the Reynolds number region for transition between them.