MEAN BEHAVIOR OF BUOYANT JETS IN A CROSSFLOW

A general theory to predict time-average trajectories and dilutions for turbulent buoyant jets in a crossflow is presented. The flow is analyzed by presenting simplified descriptions of the jet behavior combined with dimensional analysis. Assumptions for the entrainment of ambient fluid are not required. Four different flow regimes are proposed and a general buoyant jet is composed of several of these depending upon the relative magnitude of the various jet and ambient flow variables. The predictions of the proposed model are compared to results presented by other authors. Experiments were performed to verify the model for each flow regime. Data on both trajectories and dilutions are presented. The experimental results are in agreement with the theoretical predictions for each flow regime.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • WRIGHT, S J
• Publication Date: 1977-5

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 499-531
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 103
  • Issue Number: HY5
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Buoyancy; Dilution; Dimensional analysis; Flow; Forecasting; Jet propelled aircraft; Mathematical models; Trajectory; Turbulence; Vehicle trajectories
• Candidate Terms: Turbulent flow
• Uncontrolled Terms: Jets; Models
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00164030
• Record Type: Publication
• Report/Paper Numbers: ASCE 12944
• Files: TRIS
• Created Date: Nov 9 1977 12:00AM