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Publication Number: FHWAHRT07036 Date: March 2007 
The following images show the velocity profile in the outflow pipe from the access hole experiments. These were used to validate K_{i}. Blue indicates low velocity, while the spectrum toward red reflects increasing magnitudes of local velocity.
Figure 48. Image. Velocity profile 5 mm (0.19 inch) from the outlet for Q/A_{o} = 43 cm/s (17 inches/s).
Figure 49. Image. Area where V is greater than 0.867V_{max} 5 mm (0.19 inch) from the outlet for Q/A_{o} = 43 cm/s (17 inches/s).
Figure 50. Image. Area where V is greater than 0.90V_{max} 5 mm (0.19 inch) from the outlet for Q/A_{o} = 43 cm/s (17 inches/s).
Figure 51. Image. Area where V is greater than 0.925V_{max} 5 mm (0.19 inch) from the outlet for Q/A_{o} = 43 cm/s (17 inches/s).
Figure 52. Image. Velocity profile at the outlet for Q/A_{o} = 57 cm/s (22 inches/s).
Figure 53. Image. Area where V is greater than 0.867V_{max} at the outlet for Q/A_{o} = 57 cm/s (22 inches/s).
Figure 54. Image. Area where V is greater than 0.90V_{max} at the outlet for Q/A_{o} = 57 cm/s (22 inches/s).
Figure 55. Image. Area where V is greater than 0.925V_{max} at the outlet for Q/A_{o} = 57 cm/s (22 inches/s).
Figure 56. Image. Velocity profile at the outlet for Q/A_{o} = 64 cm/s (25 inches/s).
Figure 57. Image. Area where V is greater than 0.867V_{max} at the outlet for Q/A_{o} = 64 cm/s (25 inches/s).
Figure 58. Image. Area where V is greater than 0.90V_{max} at the outlet for Q/A_{o} = 64 cm/s (25 inches/s).
Figure 59. Image. Area where V is greater than 0.925V_{max} at the outlet for Q/A_{o} = 64 cm/s (25 inches/s).
Figure 60. Image. Velocity profile at the outlet for Q/A_{o} = 75 cm/s (30 inches/s).
Figure 61. Image. Area where V is greater than 0.867V_{max} at the outlet for Q/A_{o} = 75 cm/s (30 inches/s).
Figure 62. Image. Area where V is greater than 0.90V_{max} at the outlet for Q/A_{o} = 75 cm/s (30 inches/s).
Figure 63. Image. Area where V is greater than 0.925V_{max} at the outlet for Q/A_{o} = 75 cm/s (30 inches/s).
Topics: research, infrastructure, hydraulics Keywords: research, infrastructure, hydraulics, Energy loss, junction loss, storm drain, access hole, manhole, hydraulics, physical model TRT Terms: research, hydraulics, hydrology, fluid mechanics, earth sciences, geophysics Updated: 04/23/2012
