【摘 要】
：
Results of an experimental study of the merging of unequal parallel round turbulent jets are presented.Experiments were conducted for a jet axial separation to
【机 构】
：
Glenn Department of Civil Engineering
论文部分内容阅读
Results of an experimental study of the merging of unequal parallel round turbulent jets are presented.Experiments were conducted for a jet axial separation to nozzle diameter ratio of 3.0 and the Reynolds numbers ranging from 8 000 to 15 000.The distance to the point where the jets are merged was measured for a range of jet source momentum flux ratios.Three different merger criteria were used based on the mean velocity profile,mean passive tracer concentration profile,and Reynolds stress profile.The results show that the concentration profile merges closest to the jet sources followed by the velocity profile with the Reynolds stress profile merging furthest from the nozzles.For all three profiles the merge distance is relatively insensitive to the momentum flux ratio,consistent with previous findings for slot jets and buoyant round jets.The measured merge distances are consistent with previously published results for equal round jets,though the poor spatial resolution of data in the literature means that limited comparison is possible.There are no studies of unequal jet merger currently in the literature that could be used for comparison.
其他文献
Vascular endothelial growth factors(VEGFs)respectively bind to each of three receptor tyrosine kinases (RTKs),known as Flt-1,KDR and Flt-4.Since VEGFs and their
Heparin has been considered to be a potentially useful ligand for low-density lipoprotein(LDL)detection and analysis in a clinical context.In order to construct
The homogeneous electrocatalytic oxidation of hydrazine (HZ) has been studied by indigocarmine (IND) as a mediator at the surface of TiO2 nanoparticles modified
We have developed simple,cost effective and environmentally benign protocol for the synthesis of 5-substituted 1H-tetrazoles via [2,3] cycloaddition reaction fr
UV-induced graft polymerization of acrylic acid(AA)on poly(ether ether ketone)(PEEK)films was carried out to introduce-COOH for the subsequent immobilization of
A solid ternary mixture consisting of NaF,silicon and one metal oxide such as La2O3,CeO2,Pr6O11,Nd2O3,and Y2O3 was prepared and used as de-fluorinated reagent f
Tropical cyclone (TC) genesis over the South China Sea (SCS) during 1965-2004 was analyzed.The locations of TC genesis display evident seasonal changes,with the
In order to study the mechanisms of the turbulent frictional drag reduction by surfactant additives,the drag reduction,the shear viscosity and the shear stress
It is well-known that every member of the KdV hierarchy of equations can be obtained from the AKNS hierarchy of equations by imposing a simple reduction. The au
Macro-mesoporous γ-alumina support (MMA) was prepared by a sol-gel route in aqueous medium using pseudo-boehmite as aluminum source and polystyrene microsphere