The potential function, ф, of the flow past a corner is provided by the following equation,...
2. The velocity potential for a spiral vortex flow is given by φ-2nInr-2-9, where A (positive) is the sink strength and Γ is the vortex strength (1) Find the expression of stream function. (2) The plot of stream function is shown in the following figure. Prove the angle,a, between the 2Tt velocity vector and the radial direction is constant throughout the flow field. (FYI, this spiral is called Logarithmic spiral.) .y
Consider the flow field represented by the velocity potential φ = Ax+Bx2−By2, where A = 1 m/s, B = 1 s−1, and the coordinates are measured in meters. Obtain expressions forthe velocity field and the stream function. Using water as the working fluid, calculate the pressure difference between the origin and the point (x,y) = (1,2). What is the volume flow rate (per unit depth) between streamlines passing through these two points?
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Let F(x, y) be a two-dimensional vector field. Spose further that there exists a scalar function, o, such that Then, F(x,y) is called a gradient field, and φ s called a potential function. Ideal Fluid Flow Let F represent the two-dimensional velocity field of an inviscid fluid that is incompressible, ie. . F-0 (or divergence-free). F can be represented by (1), where ф is called the velocity potential-show that o is harmonic....
ME420 Intermediate Fluid Mechanics Name B. Long answer questions (20 points each). 1. The figure below shows the streamlines for the flow past a spinning circular cylinder. In the cylindrical coordinates, the stream function can be written as ψ Uosine (r-7/-Kln (5). where R is the radius of the cylinder. Assuming that the pressure in the far upstream is po. find the pressure distribution on the surface.
ME420 Intermediate Fluid Mechanics Name B. Long answer questions (20 points each). 1....
6. An Eulerian flow field is characterized by the stream function in Cartesian coordinates below: y = vzt where a is a positive constant. • Sketch the streamlines for the given flow field in the xy-plane at a given time, t. Be sure to specify the direction of the streamlines in your plot. Determine if the fluid in the flow field is incompressible. Determine if the flow field is irrotational. If so, find the corresponding velocity potential and sketch a...
A certain flow field is described by the velocity potential( φ = A ln r +Br cosθ) where A and B are positive constants. Determine the corresponding stream function and locate any stagnation points in this flow field
Q7. The flow field is defined by the complex potential function, f(z)- Uz+mlnz) a) Define the stream and potential functions, b) Define the types of the potential flows superpositioned c) Using the values, U-8 m/s and m-3 m'/s determine the pressure distribution and obtain the location op the stagnation point or points in the flow field.
Q7. The flow field is defined by the complex potential function, f(z)- Uz+mlnz) a) Define the stream and potential functions, b) Define the types...
Q7. The flow field is defined by the complex potential function, f(z)- Uz+mlnz) a) Define the stream and potential functions, b) Define the types of the potential flows superpositioned c) Using the values, U-8 m/s and m-3 m2/s determine the pressure distribution and obtain the location op the stagnation point or points in the flow field.
Q7. The flow field is defined by the complex potential function, f(z)- Uz+mlnz) a) Define the stream and potential functions, b) Define the types...
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1. A 2D inviscid flow field is represented by the velocity potential function: ° = Ax + Bx2 – By2. Where A = 1m/s, B = 15-7, and the coordinates are measured in meters. The flow density is p = 1.2 kg/m3. (a) (2 points) Calculate the velocity field. (b) (2 points) Verify that the flow is irrotational. (c) (2 points) Verify that the flow is incompressible. (d) (2 points) Obtain the expression of stream function. (e) (2 points)...
Q1. (a) The velocity components of a certain two-dimensional flow field are claimed to be given by u =-Cy and v = Cx , where is a constant. (i) Does this velocity distribution satisfy continuity? If yes, what is the stream function y? (8 marks) (ii) Analyse whether the flow is rotational or irrotational. What is the velocity potential o ? (4 marks) (iii) Sketch several y and © lines (if exist) of the flow field. Briefly explain how you...