BUBBLY TWO PHASE FLOW IN HYDRAULIC JUMP

PAPER REPORTS ON AN EXPERIMENTAL STUDY OF THE AIR-ENTRAINING ROLLER ZONE OF HYDRAULIC JUMPS ON OPEN CHANNELS. HOT-FILM ANEMOMETRY TECHNIQUES WERE USED, INVOLVING INSTANT DIGITIZING OF ANALOG SIGNALS AND DELAYED ELECTRONIC PROCESSING OF THE TAPE-RECORDED DATA. THE TWO PHASES (AIR VERSUS WATER) WERE IDENTIFIED BY A SIGNAL THRESHOLD. RESULTS ARE PRESENTED ON VOID RATIO AND AVERAGE SIZE AND STATISTICAL SIZE DISTRIBUTION OF THE ENTRAINED AIR BUBBLES FOR JUMPS WITH AND WITHOUT FULLY DEVELOPED INFLOW. FINDINGS CONFIRM THAT THE STATE OF FLOW DEVELOPMENT OF THE SUPERCRITICAL STREAM ENTERING THE JUMP HAS A SIGNIFICANT BEARING ON THE RESULTING FLOW CONFIGURATION WITHIN THE JUMP BODY AND THUS, ON THE AIR-ENTRAINING CAPACITY OF THE HYDRAULIC JUMPS.

• Supplemental Notes:
  • PROC PAPER 10297 2 APP
• Authors:
  • Resch, F J
  • Leutheusser, H J
  • Alemu, S
• Publication Date: 1974-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 137-49
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 100
  • Issue Number: hy1
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Aeration; Air entrainment; Flow; Hydraulic jump; Hydraulics; Sewage treatment; Streamflow; Water
• Uncontrolled Terms: Inflow; Water treatment
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204538
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 27 1974 12:00AM