caa a22 4500 445811862 CHVBK 20180317145214.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00419-010-0418-7 doi (NATIONALLICENCE)springer-10.1007/s00419-010-0418-7 A novel formula to describe the velocity profile of free jet flow [Elektronische Daten] [Jianchao Lee, Tangjun Lu, Hongxia Sun, Ge Miao] Having a potential core, the velocity profile in initial zone of incompressible submerged jet flow is different from that in fully developed region. In the former researches, the two regions were studied separately, even a short part between the two regions being considered as a transition region. The velocity profile in fully developed region looked as a Gaussian distribution, which is valid when jet initial region is comparatively short. But when the size of initial zone is long enough not to be able to be neglected, especially for large-size exit, this kind of assumption is not acceptable. Based on the analysis of flow structure of jet flow, a new velocity profile formula of submerged jet flow was proposed, which unites the initial, transition, fully developed regions of jet flow via modifying Gaussian distribution with a radial adjusting coefficient. For the round jet with the medium or high range of Reynolds number, the radial adjusting coefficient is a power function of reciprocal of jet distance. And then some literature experimental data were applied in verification, and the new formula exhibited a good calculation result. This work opened that the jet flow velocity profile at any site along the flow distance can be described via a same formula. Springer-Verlag, 2010 Free jet flow nationallicence Initial region nationallicence Velocity profile nationallicence Formula nationallicence Lee Jianchao Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut Lu Tangjun Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut Sun Hongxia Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut Miao Ge Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut Archive of Applied Mechanics Springer-Verlag 81/3(2011-03-01), 397-402 0939-1533 81:3<397 2011 81 419 https://doi.org/10.1007/s00419-010-0418-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00419-010-0418-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Jianchao Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut NATIONALLICENCE 700 1- Lu Tangjun Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut NATIONALLICENCE 700 1- Sun Hongxia Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut NATIONALLICENCE 700 1- Miao Ge Department of Environmental Science, Shaanxi Normal University, 710062, Xi'an, Shaanxi, People's Republic of China aut NATIONALLICENCE 773 0- Archive of Applied Mechanics Springer-Verlag 81/3(2011-03-01), 397-402 0939-1533 81:3<397 2011 81 419 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer