Flow evolution of a turbulent submerged two-dimensional rectangular free jet of air. Average Particle Image Velocimetry (PIV) visualizations and measurements

Numerical solution of three-dimensional rectangular submerged jets with the evidence of the undisturbed region of flow

“…A wall is present above and below the slot, with a thickness of 0.176 hydraulic diameters, as in the experiments [19][20]. The total pressure is imposed on the outlet boundaries, while the velocity boundary condition changes according to its direction.…”

“…The coefficient a, which appears in both Eq. (23) and (24) is assumed equal to 0.13, while the experimental values span between 0.09, in [19] as well as in [2], and 0.12. From Eq.…”

Large Eddy Simulation of Planar Free Jet Flow Using the Space-Time Conservation Element/Solution Element Scheme

“…The length of the region of constant height L CH , length of undisturbed region L U , and the length of potential core region L P are compared with the experiment results [4] , as shown in Fig. 4.…”

“…CE/SE scheme has the advantages of easy construction, global conservation, high resolution, low dissipation, and grid adaptability, which has been successfully used in computational aeroacoustics [8] and induct turbulent flow simulation [9] . The numerical work in this study will be validated with experimental results by Gori et al [4] Computational Methods…”

“…This length of this undisturbed region L U is almost equal to the length region of constant height, L CH . They further measured the flow field of the jet flow with Re = 22000~35300 by Particle Image Velocimetry (PIV) technique [4] , reported that the lengths of L CH , L U and L p decrease as the Re number increases. The development of computational techniques and turbulent modeling enables the ability to numerically study the flow dynamics problems.…”