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A two-dimensional flow field is characterized as u = Ax2 and v = Bxy where
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Fox and McDonald's Introduction to Fluid Mechanics
- 2. In a two dimensional incompressible fluid flow, the velocity components are given by: u=(x-4y) and v=-(y+4x). If possible show that the potential exists and determine its form. Also determine whether the flow is irrotational?arrow_forwardThe velocity components in the x and y directions are given by 3 u = Axy3 - x2y, v = xy2 -- The value of a for a possible flow field involving an incompressible fluid isarrow_forwardConsider the flow field V = (ay+dx)i + (bx-dy)j + ck, where a(t), b(t), c(t), and d(t) are time dependent coefficients. Prove the density is constant following a fluid particle, then find the pressure gradient vector gradP, Γ for a circular contour of radius R in the x-y plane (centered on the origin) using a contour integral, and Γ by evaluating the Stokes theorem surface integral on the hemisphere of radius R above the x-y plane bounded by the contour.arrow_forward
- Consider a velocity field where the x and y components of velocity aregiven by u = cx and v = −cy, where c is a constant. Assuming the velocity field given is pertains to an incompressible flow, calculate the stream function and velocity potential.Using your results, show that lines of constant φ are perpendicular to linesof constant ψ.arrow_forwardConsider the velocity field given by u = y/(x2 + y2) and v = −x/(x2 + y2). Calculate the equation of the streamline passing through the point (0, 5).arrow_forwardThe components of a two-dimensional velocity field are u = 4 + y³ and v = 16. The equation for a streamline can be written as y++ Ay + Bx + C = 0. Determine the values of the coefficients for the streamline passing through (3, 1). A = i B = i C= iarrow_forward
- Answer question 3 in the attached image pleasearrow_forwardProblem 3: Obtaining the stream function from velocity components The steady state, incompressible flow field for two-dimensional flow is given by the following velocity components: V =16y-x and v, =16x + y %3D Determine the equation for the stream function and make sure continuity is satisfied.arrow_forwardneed urgent help, thanks the question is related to advanced fluid mechanicsarrow_forward
- 2. A two-dimensional flow field for a inviscid, incompressible fluid is described by the velocity components u = Uo + 2y y v= 0 where U, is a constant. If the pressure at the origin shown on the figure is po, В(О, 1) determine an expression for the pressure at (a) point 4, and (b) point B. Explain clearly how field? How about equipotential lines? Why/why not. Assume that the units are consistent and body forces may be neglected. you obtained your answer. Can you sketch streamlines for this flow A(1, 0) Роarrow_forward2. A 2-D unsteady flow field has the velocity components: u = - v = - x²y?t a. Plot the streamline passing through (x,y) = (1,2) at time t = 0.5. b. Plot the pathline for a particle passing through this point at the same instant.arrow_forwardB/ Two components of velocity in an incompressible fluid flow are given by v=z³y³ determine the third component. u= x² - y³ and Do the velocity field U = 5xi + (3y + ty2)j represent physically possible flow?arrow_forward
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