TY - JOUR
T1 - Inclined turbulent fountains
AU - Bloomfield, Lynn J.
AU - Kerr, Ross C.
PY - 2002/1/25
Y1 - 2002/1/25
N2 - We present an experimental investigation of turbulent fountains produced when dense fluid is injected upwards into either a homogeneous or a stratified environment at an angle to the vertical. We determine the initial height above the source at which the flow first comes to rest, the final height of the fountain, and the height at which the mixed fluid finally intrudes when the environment is stratified. The initial fountain height is found to decrease monotonically as the angle of inclination is increased. In contrast, the final fountain height is found to increase and then to decrease, with the maximum height occurring at an angle of inclination of about 10°. This behaviour is due a combination of the decreased interaction between the upflow and the downflow, and the decreased vertical momentum of the injected fluid, as the angle of inclination is increased.
AB - We present an experimental investigation of turbulent fountains produced when dense fluid is injected upwards into either a homogeneous or a stratified environment at an angle to the vertical. We determine the initial height above the source at which the flow first comes to rest, the final height of the fountain, and the height at which the mixed fluid finally intrudes when the environment is stratified. The initial fountain height is found to decrease monotonically as the angle of inclination is increased. In contrast, the final fountain height is found to increase and then to decrease, with the maximum height occurring at an angle of inclination of about 10°. This behaviour is due a combination of the decreased interaction between the upflow and the downflow, and the decreased vertical momentum of the injected fluid, as the angle of inclination is increased.
UR - http://www.scopus.com/inward/record.url?scp=0037168889&partnerID=8YFLogxK
U2 - 10.1017/s0022112001006528
DO - 10.1017/s0022112001006528
M3 - Article
SN - 0022-1120
VL - 451
SP - 283
EP - 294
JO - Journal of Fluid Mechanics
JF - Journal of Fluid Mechanics
ER -