Efficiency enhancement in transonic compressor rotor blades using synthetic jets: A numerical investigation

Benini, Ernesto; Biollo, Roberto; Ponza, Rita

doi:10.1016/j.apenergy.2010.08.006

Cited by 41 publications

(26 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Numerous flow control studies through CFD approaches [25][26][27][28][29][30][31][32][33] have been conducted to investigate the effects of blowing, suction, and synthetic jets on the aerodynamic characteristics of airfoils. In the current study, the optimization of blowing and suction slot geometries, including suction and blowing jet widths, is numerically analyzed.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of blowing and suction slot geometry optimization on NACA 0012 airfoil

2014

View full text Add to dashboard Cite

The effects of jet width on blowing and suction flow control were evaluated for a NACA 0012 airfoil. RANS equations were employed in conjunction with a Menter's shear stress turbulent model. Tangential and perpendicular blowing at the trailing edge and perpendicular suction at the leading edge were applied on the airfoil upper surface. The jet widths were varied from 1.5% to 4% of the chord length, and the jet velocity was 0.3 and 0.5 of the free-stream velocity. Results of this study demonstrated that when the blowing jet width increases, the lift-to-drag ratio rises continuously in tangential blowing and decreases quasi-linearly in perpendicular blowing. The jet widths of 3.5% and 4% of the chord length are the most effective amounts for tangential blowing, and smaller jet widths are more effective for perpendicular blowing. The lift-to-drag ratio improves when the suction jet width increases and reaches its maximum value at 2.5% of the chord length.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical study of blowing and suction slot geometry optimization on NACA 0012 airfoil

2014

View full text Add to dashboard Cite

show abstract

“…For the pump-turbine model, the constant relative parameters can only denote a specific condition [21][22]. However, the characteristics of the pump-turbine in the S-shaped regions are so complex that any one of the conditions in the S-shaped regions cannot be ignored.…”

Section: Dynamic Model Of the Pump-turbine In S-shaped Regionsmentioning

confidence: 99%

Dynamic modeling and dynamical analysis of pump-turbines in S-shaped regions during runaway operation

Zhang

Chen

et al. 2017

Energy Conversion and Management

View full text Add to dashboard Cite

There is a region of pump-turbine operation, often called the S-shaped region, in which one unit rotational speed corresponds to three unit flows or torques. In this paper, the dynamic model of the pump-turbine in S-shaped regions is established by introducing the nonlinear piecewise function of relative parameters. Then, the global bifurcation diagrams of the pump-turbine are presented to analyze its dynamic characteristics in the S-shaped regions. Meanwhile, a stability criterion of runaway point is given based on the established theoretical model. The numerical experiments are conducted on the model and the results are in good agreement with

show abstract

“…Under certain conditions (see [23]- [27]), the outlet fluid flow forms a flow field behind the nozzle that is called a synthetic jet and is similar to the continuous jet in the far field [28]. In the past two decades, SJs have been intensively investigated, and many potential applications of them have been found (boundary layer control [5], [29]- [33], heat mass transfer [34]- [36], jet mixing [37]- [40] and shaking [41]). An improved variant of the SJ named the hybrid synthetic jet (HSJ) was studied in [42]- [50].…”

Section: Introductionmentioning

confidence: 99%

Energetic efficiencies of synthetic and hybrid synthetic jet actuators driven by electrodynamic transducers

Kordík

Trávníček

Pavelka

2015

Experimental Thermal and Fluid Science

View full text Add to dashboard Cite

Efficiency enhancement in transonic compressor rotor blades using synthetic jets: A numerical investigation

Cited by 41 publications

References 26 publications

Numerical study of blowing and suction slot geometry optimization on NACA 0012 airfoil

Numerical study of blowing and suction slot geometry optimization on NACA 0012 airfoil

Dynamic modeling and dynamical analysis of pump-turbines in S-shaped regions during runaway operation

Energetic efficiencies of synthetic and hybrid synthetic jet actuators driven by electrodynamic transducers

Contact Info

Product

Resources

About