Consider a two-dimensional flow field described by a potential function v=c+ dr? - ey? where constant c=4m2.s-1, d=3s-1, e=3s-1 and x and y are the horizontal and vertical position coordinates, respectively measured in meters.

a) derive the stream function (\psi) for this flow field.

b) plot streamlines for three iso-values of \psi=1,2,3. from these iso-streamlines, comment on how velocity in this flow field changes with x, y positions.

c)determine pressure gradient at point (1, 1) located within the field if the fluid is assumed to be water. (hint: include effect of gravity acceleration which is 9.81 m. s-2. density of water can be assumed to be 998.2 kg/m3).

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.