Figure 1.4.1 (a)An example of a source of particles and the flow associated with a source,(b)An example of a sink of particles and the flow associated with a sink. Another representation of a diverging flow is in depicted in Figure 1.4.2. Figure 1.4.2 Representing the flow field associated with a source using textures. Here the direction of the flow is represented by a texture pattern in which the direction of correlation in the texture is along the field direction. Figure 1.4.3(a)shows a source next to a sink of lesser magnitude,and Figure 1.4.3(b) shows two sources of unequal strength. Figure 1.4.3 The flow fields associated with (a)a source (lower)and a sink (upper) where the sink is smaller than the source,and (b)two sources of unequal strength. 1-9Figure 1.4.1 (a) An example of a source of particles and the flow associated with a source, (b) An example of a sink of particles and the flow associated with a sink. Another representation of a diverging flow is in depicted in Figure 1.4.2. Figure 1.4.2 Representing the flow field associated with a source using textures. Here the direction of the flow is represented by a texture pattern in which the direction of correlation in the texture is along the field direction. Figure 1.4.3(a) shows a source next to a sink of lesser magnitude, and Figure 1.4.3(b) shows two sources of unequal strength. Figure 1.4.3 The flow fields associated with (a) a source (lower) and a sink (upper) where the sink is smaller than the source, and (b) two sources of unequal strength. 1-9