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Doublet We can now form different flow patterns by superimposing the velocity potential and stream functions of the elementary flows stated above. In order to develop a doublet, imagine a source and a sink of equal strength K at equal distance s from the origin along x-axis as shown in Fig. 1. From any point p(x, y) in the field, r1 and r2 are drawn to the source and the sink. The polar coordinates of this point (r, θ) have been shown. The potential functions of the two flows may be superimposed to describe the potential for the combined flow at P as Similarly, Expanding θ1 and θ2 in terms of coordinates of p and s Hence the stream function and the velocity potential function are formed by combining Eqs (2) and (3), as well as Eqs(1) and (4) respectively Hence ------- Stream Function (5) ----- Potential Function (6) Doublet is a special case when a source as well as a sink are brought together in such a way that and at the same time the strength is increased to an infinite value. These are assumed to be accomplished in a manner which makes the product of s and (in limiting case) a finite value c This gives us Services: - Fundamental Flows Combination Homework | Fundamental Flows Combination Homework Help | Fundamental Flows Combination Homework Help Services | Live Fundamental Flows Combination Homework Help | Fundamental Flows Combination Homework Tutors | Online Fundamental Flows Combination Homework Help | Fundamental Flows Combination Tutors | Online Fundamental Flows Combination Tutors | Fundamental Flows Combination Homework Services | Fundamental Flows Combination
Doublet We can now form different flow patterns by superimposing the velocity potential and stream functions of the elementary flows stated above. In order to develop a doublet, imagine a source and a sink of equal strength K at equal distance s from the origin along x-axis as shown in Fig. 1. From any point p(x, y) in the field, r1 and r2 are drawn to the source and the sink. The polar coordinates of this point (r, θ) have been shown. The potential functions of the two flows may be superimposed to describe the potential for the combined flow at P as Similarly,
Expanding θ1 and θ2 in terms of coordinates of p and s Hence the stream function and the velocity potential function are formed by combining Eqs (2) and (3), as well as Eqs(1) and (4) respectively
Hence ------- Stream Function (5) ----- Potential Function (6) Doublet is a special case when a source as well as a sink are brought together in such a way that and at the same time the strength is increased to an infinite value. These are assumed to be accomplished in a manner which makes the product of s and (in limiting case) a finite value c This gives us
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