The velocity components describe a 2-D flow as u=10x^3 and v=-10x^2y d...
Flownet for 2-D Flow with given velocity components:
To draw a flownet for the given velocity components u = 10x^3 and v = -10x^2y, we need to plot a combination of streamlines and equipotential lines. Streamlines represent the flow direction, while equipotential lines represent the pressure distribution in the flow field.
Drawing Streamlines:
Streamlines can be obtained by integrating the given velocity components. We integrate u with respect to x and v with respect to y to obtain the stream function, ψ.
Integrating u = 10x^3 with respect to x, we get ψ = 2.5x^4 + C1.
Integrating v = -10x^2y with respect to y, we get ψ = -5x^2y^2 + C2.
Equating the two stream functions, we get 2.5x^4 + C1 = -5x^2y^2 + C2. Rearranging the equation, we have C1 - C2 = -2.5x^4 - 5x^2y^2.
We can choose different values for C1 - C2 to obtain different streamlines. Let's consider four streamlines with values of C1 - C2 as -10, -5, 0, and 5.
For C1 - C2 = -10, the equation becomes -2.5x^4 - 5x^2y^2 = -10. We can plot this equation on a graph to obtain the first streamline.
Similarly, we can plot the equations -2.5x^4 - 5x^2y^2 = -5, -2.5x^4 - 5x^2y^2 = 0, and -2.5x^4 - 5x^2y^2 = 5 to obtain the other three streamlines.
Drawing Equipotential Lines:
Equipotential lines can be obtained by integrating the given velocity components. We integrate u with respect to y and v with respect to x to obtain the potential function, φ.
Integrating u = 10x^3 with respect to y, we get φ = 10x^3y + C3.
Integrating v = -10x^2y with respect to x, we get φ = -10/3x^3y^2 + C4.
Equating the two potential functions, we get 10x^3y + C3 = -10/3x^3y^2 + C4. Rearranging the equation, we have C3 - C4 = -10/3x^3y^2 - 10x^3y.
We can choose different values for C3 - C4 to obtain different equipotential lines. Let's consider four equipotential lines with values of C3 - C4 as -10, -5, 0, and 5.
For C3 - C4 = -10, the equation becomes -10/3x^3y^2 - 10x^3y = -10. We can plot this equation on a graph to obtain the first equipotential line.
Similarly, we can plot the equations -10/3
To make sure you are not studying endlessly, EduRev has designed Civil Engineering (CE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Civil Engineering (CE).