scholarly journals NUMERICAL INVESTIGATION OF VERTICAL GAS–LIQUID SEPARATORS USING COMPUTATIONAL FLUID DYNAMICS AND STATISTICAL TECHNIQUES

2018 ◽  
Author(s):  
JULIO CESAR MENDEZ ◽  
AHMET ERGIN EFENDIOGLU ◽  
JOSE LEONARDO GUEVARA
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Numerical Investigation ◽  
Statistical Techniques

scholarly journals Numerical Investigation on Effect of Multiple Winglets for Wind Turbine Applications

2018 ◽  
Vol 7 (4.5) ◽  
pp. 450
Author(s):  
Prasad. G. ◽  
Ramesh. M. ◽  
Rajasekar. K.
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Reynolds Number ◽  
Wind Turbine ◽  
Numerical Investigation ◽  
Substantial Improvement ◽  
Tip Vortices ◽  
Induced Drag ◽  
Lift Curve ◽  
Improved Performance

The present article is an effort to examine the potential of multiple winglets to reduce the induced drag of the aerodynamic surface. The advantages of using multiple winglets include reduction of induced drag, increased L/D and improved performance of the Wind turbine. Computational Fluid Dynamics is utilized as to approach the effects of multiple winglets with NACA 24012 airfoil section for untwisted, rectangular wing. The testing of configurations is done at Reynolds number 290,000. FLUENT solver incorporated in ANSYS used for the numerical investigation of the steady flow over the wing. A substantial improvement in lift curve slope occurs with dihedral spread of the winglets. The dihedral spread also distributes the tip vortices. 

scholarly journals Produced water treatment by ceramic membrane: A numerical investigation by computational fluid dynamics

2017 ◽  
Vol 9 (3) ◽  
pp. 168781401668864 ◽  
Author(s):  
Hortência Luma Fernandes Magalhães ◽  
Antonio Gilson Barbosa de Lima ◽  
Severino Rodrigues de Farias Neto ◽  
Helton Gomes Alves ◽  
Josedite Saraiva de Souza
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Water Treatment ◽  
Numerical Investigation ◽  
Produced Water ◽  
Ceramic Membrane ◽  
Produced Water Treatment

Numerical Investigation of the Ground Effect for a Small Bird

2013 ◽  
Vol 29 (3) ◽  
pp. 433-441 ◽  
Author(s):  
J.-H. Tang ◽  
J.-Y. Su ◽  
C.-H. Wang ◽  
J.-T. Yang
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Numerical Investigation ◽  
Ground Effect ◽  
Lower Surface ◽  
Experimental Models ◽  
Simplified Model ◽  
Wing Model ◽  
Aerodynamic Effect ◽  
Small Bird

AbstractAn investigation with computational fluid dynamics of the ground effect on a small bird revealed quantitatively the obstruction of the vortex expansion resulting from the presence of the ground at varied distance. Preceding authors focused mainly on the bird's wings, generally neglecting the bird's body; we discuss specifically the distinction of the aerodynamic effect between cases with and without the presence of the bird's body. The results of simulation show that, considering only two wings, for a distance between the wing model and the ground smaller than a semi-span, the smaller is the ground clearance, the more significant is the ground effect. At clearance 0.37 times a semi-span, the drag is decreased 11%, and the lift is increased 5.6%. The ground effect for an intact bird model composed of both wings and body is less effective than that for a simplified model with body omitted, because a suction was observed on the lower surface of the intact bird's trunk at clearance 0.37 times a semi-span; for this reason the intact bird model benefits less from the ground effect than the model with body excluded, but increased lift and decreased drag remain observable. This research treating the ground effect on a gliding bird reveals the importance of the presence of the bird's body in both computational and experimental models.

Experimental and Numerical Investigation of a Centrifugal Nozzle

2007 ◽  
Author(s):  
Jason Smith ◽  
Robert N. Eli
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Particulate Matter ◽  
Laboratory Experiment ◽  
Numerical Investigation ◽  
Industrial Applications ◽  
Fluid Mixing ◽  
Cfd Models ◽  
Computational Fluid Dynamics Cfd

This paper reports on a laboratory experiment conducted more than 30 years ago (Eli, 1974, unpublished), and recent Computational Fluid Dynamics (CFD) investigations, focusing on the properties of a plane tangential jet produced by an apparatus called a “centrifugal nozzle.” The authors believe that the centrifugal nozzle has potential industrial applications in several areas related to fluid mixing and particulate matter suspension in mixing tanks. It is also believed that this experiment, or one similar, may provide data useful for benchmarking CFD models.

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