SIMULTANEOUS EFFECT OF JET GEOMETRY AND CONCENTRATION OF SEWAGE OUTFLOW ON THE POSITIVE MIXING LENGTH OF FLUX BUOYANCY IN A BUOYANT JET

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AHADIYAN J.; MOUSAVI JAHROMI H.

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Journal: JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH Year:2010 | Volume:11 | Issue:1 Page(s): 49-66

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Title

SIMULTANEOUS EFFECT OF JET GEOMETRY AND CONCENTRATION OF SEWAGE OUTFLOW ON THE POSITIVE MIXING LENGTH OF FLUX BUOYANCY IN A BUOYANT JET

Author(s)

AHADIYAN J. | MOUSAVI JAHROMI H. | Issue Writer Certificate

Keywords

CONCENTRATIONQ3

DENSIMETRIC FROUDE NUMBERQ3

LENGTH OF POSITIVE BUOYANCYQ3

ROUND BUOYANT JET TRAJECTORYQ3

Abstract

In this research, the positive mixing length and trajectory characteristics of a buoyant jet was investigated. Jet flux is dependent on parameters such as initial velocity, port diameter, CONCENTRATION of jet and flow conditions in the receiving fluid. A buoyant jet fluid governing equation with relevant logical assumptions was used to drive the required dimensionless functions using dimensional analysis. A physical model was built to evaluate the function of these parameters. Testing was done at varying velocities, CONCENTRATIONs and initial port diameters. The length of the falling jet trajectory was analyzed as the ratio of trajectory length to port diameter versus relative trajectory elevation. The results showed that increasing jet diameter and jet momentum had a significant effect on jet trajectory. Increasing jet fluid density caused a density gradient between the jet and receiving fluid and a change in the buoyancy forces involved which had a major influence on the length of the falling jet trajectory. Hence at a given density, increasing the diameter from 5-8 mm or 8-15 mm decreased the DENSIMETRIC FROUDE NUMBER 30-40% for different velocities and the ratio of the length of positive flux buoyancy to port diameter decreased 20-35%. Findings showed that doubling the increase in density decreased the length of positive flux buoyancy 5-20%.

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APA: Copy

AHADIYAN, J., & MOUSAVI JAHROMI, H.. (2010). SIMULTANEOUS EFFECT OF JET GEOMETRY AND CONCENTRATION OF SEWAGE OUTFLOW ON THE POSITIVE MIXING LENGTH OF FLUX BUOYANCY IN A BUOYANT JET. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 11(1), 49-66. SID. https://sid.ir/paper/28060/en

Vancouver: Copy

AHADIYAN J., MOUSAVI JAHROMI H.. SIMULTANEOUS EFFECT OF JET GEOMETRY AND CONCENTRATION OF SEWAGE OUTFLOW ON THE POSITIVE MIXING LENGTH OF FLUX BUOYANCY IN A BUOYANT JET. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH[Internet]. 2010;11(1):49-66. Available from: https://sid.ir/paper/28060/en

IEEE: Copy

J. AHADIYAN, and H. MOUSAVI JAHROMI, “SIMULTANEOUS EFFECT OF JET GEOMETRY AND CONCENTRATION OF SEWAGE OUTFLOW ON THE POSITIVE MIXING LENGTH OF FLUX BUOYANCY IN A BUOYANT JET,” JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, vol. 11, no. 1, pp. 49–66, 2010, [Online]. Available: https://sid.ir/paper/28060/en

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