Problem 5: Fluid Flow Simulations http:/lphet.colorado.edu/en/simulation/fluid-p
ID: 1633245 • Letter: P
Question
Problem 5: Fluid Flow Simulations http:/lphet.colorado.edu/en/simulation/fluid-pressure-and-flow Click on the "Flow" tab. Move the Speed" meter (up to two) to view velocity. Move the "Pressure" gauge to view pressure at various points. Drag the yellow handle bars along the tube to expand or contract various areas. Click on dots to see specifically the motion and behavior of particles in an ideal fluid. Play with the various settings. Record your findings, among them: A. What can be done to increase the velocity? B. How is pressure affected by the location?Explanation / Answer
a) the features of the experiment determine the fluid as ideal so we can consider it as incompressible, nonviscous and with steady movement.
Playing with various settings determines that speed of such fluid can be increased by decreasing the area A
This again proves the equation of continuity where volume flow rate Q=A.V
but usually we get constant speed for steady flow
b)
lets see the definition of pressure which is P=F/A
so changing the cross sectional area or A will increase/decrease the pressure following the Bernouli's equation
A) The variables that effect waterflow are:
fluid type, moving surface type, cross sectional area, volume, boundary layer and viscosityetc
considering boundary layer te speed decreases with the thinness of the layer
shape is related to viscosity and can change the pressure type on the velocity
volume flow rate is depedent on the area thus increasing the speed
B)
The height of the water is based oon pressure, area, volumetric rate