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Unformatted text preview: or layers. In turbulent flow the speed of the fluid at a point is continuously undergoing changes in both magnitude and direction. Characteristics of turbulent flow are: Re > 4000 'high' velocity Dye mixes rapidly and completely Particle paths completely irregular Average motion is in the direction of the flow Mathematical analysis very difficult - so experimental measures are used Most common type of flow. Q 2 . What is head loss due to friction in the following pipe? The head loss in the given pipe due to friction can be expressed as: h = fLv 2 2gd Or h = h 2 h 1 According to the experimental data the following values were calculated for head loss: MANOMTER h 1 (m) MANOMTER h 2 (m) HEAD LOSS h (m) FOR HIGH PRESSURE: 0.190 0.175 0.015 0.200 0.165 0.035 0.210 0.155 0.055 0.220 0.145 0.075 FOR LOW PRESSURE: 0.205 0.165 0.040 0.215 0.150 0.065 0.225 0.140 0.085 0.235 0.130 0.105...
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- Spring '12