Abstract
A new variant of a fluidic diode for hybrid synthetic jet actuators (HSJAs) is introduced in this paper, namely the diode in the form of a conical duct. The periodic jet flow from the diode impinges on the wall and the resulting flow differences during blowing and suction increase the volumetric efficiency of the actuator. Two alternative definitions of the volumetric efficiency are used. The HSJs velocities and volumetric efficiencies were experimentally evaluated. The experiments were performed using a phase-locked smoke visualization and hot-wire anemometry with air as the working fluid. The diode-to-wall distance and the driving frequency were varied, and the combination of parameters that provided the highest HSJ velocity and highest volumetric efficiency was obtained.
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Arwatz G, Fono I, Seifert A (2008) Suction and oscillatory blowing actuator modeling and validation. AIAA J 46:1107–1117
Bardell RL (2000) The diodicity mechanism of tesla-type no-moving-parts valves. PhD Thesis, University of Washington, Washington
Cater JE, Soria J (2002) The evolution of round zero-net-mass-flux jets. J Fluid Mech 472:167–200
Chaudhari M, Puranik B, Agrawal A (2010) Heat transfer characteristics of synthetic jet impingement cooling. Int J Heat Mass Transf 53:1057–1069
Dandois J, Garnier E, Sagaut P (2007) Numerical simulation of active separation control by a synthetic jet. J Fluid Mech 574:25–58
Dauphinee TM (1957) Acoustic air pump. Rev Sci Instrum 28:456
Forster FK, Williams BE (2002) Parametric design of fixed-geometry microvalves—the Tesser valve. In: ASME Int. Mech. Eng. Congr. Expo. IMECE2002. IMECE2002-33628, New Orleans, p 7
Gamboa AR, Morris CJ, Forster FK (2005) Improvements in fixed-valve micropump performance through shape optimization of valves. J Fluids Eng 127:339–346
Gerlach T (1998) Microdiffusers as dynamic passive valves for micropump applications. Sensors Actuators A Phys 69:181–191
Gerlach T, Wurmus H (1995) Working principle and performance of the dynamic micropump. Sensors Actuators A Phys 50:135–140
Gillespie MB (1998) Local convective heat transfer from heated flat plates using synthetic air jet. MS Thesis, Georgia Institute of Technology, Atlanta
Glezer A, Amitay M (2002) Synthetic jets. Annu Rev Fluid Mech 34:503–529
Haakh F (2003) Vortex chamber diodes as throttle devices in pipe systems. Computation of transient flow. J Hydraul Res 41:53–59
Hong G (2006) Effectiveness of micro synthetic jet actuator enhanced by flow instability in controlling laminar separation caused by adverse pressure gradient. Sensors Actuators A Phys 132:607–615
Hsu S-S, Kordík J, Trávníček Z, Wang A-B (2012) The performance of hexagonally arranged hybrid synthetic jets. J Flow Vis Image Process 19:1–13
Hsu S-S, Trávníček Z, Chou C-C et al (2013) Comparison of double-acting and single-acting synthetic jets. Sensors Actuators A Phys 203:291–299
Kordík J (2013) Synthetic and hybrid synthetic jet actutators—theoretical and experimental analysis. LAP LAMBERT Academic Publishing, Saarbruecken
Kordík J, Trávníček Z (2013) Novel fluidic diode for hybrid synthetic jet actuator. J Fluids Eng 135:101101-1–101101-7
Kordík J (2011) Theoretical and experimental analysis of synthetic and hybrid synthetic jet actuators. PhD Thesis, Czech Technical University, Prague
Kordík J, Trávníček Z, Tesař V (2013b) A new method for fluid input into a hybrid synthetic jet actuators. In: Proceedings of Exp. Fluid Mech. EFM 2013, Kutná Hora
Kulkarni AA, Ranade VV, Rajeev R, Koganti SB (2009) Pressure drop across vortex diodes: experiments and design guidelines. Chem Eng Sci 64:1285–1292
Liu Z, Deng Y, Lin S, Xuan M (2012) Optimization of micro Venturi diode in steady flow at low Reynolds number. Eng Optim 44:1389–1404
Morris CJ, Forster FK (2000) Optimization of a circular piezoelectric bimorph for a micropump driver. J Micromech Microeng 10:459–465
Olsson A, Stemme G, Stemme E (1996) Diffuser-element design investigation for valve-less pumps. Sensors Actuators A Phys 57:137–143
Olsson A, Larsson O, Holn J et al (1998) Valve-less diffuser micropumps fabricated using thermoplastic replication. Sensors Actuators A Phys 64:63–68
Olsson A, Stemme G, Stemme E (2000) Numerical and experimental studies of flat-walled diffuser elements for valve-less micropumps. Sensors Actuators A Phys 84:165–175
Persoons T, McGuinn A, Murray DB (2011) A general correlation for the stagnation point Nusselt number of an axisymmetric impinging synthetic jet. Int J Heat Mass Transf 54:3900–3908
Priestman GH, Tippetts JR (1985) Factors affecting the application of vortex diodes and throttles. In: Harada M (ed) Proc. Symp. Fluid Control Meas. Pergamon, Oxford, pp 241–246
Smith BL, Glezer A (1998) The formation and evolution of synthetic jets. Phys Fluids 10:2281–2297
Smith BL, Glezer A (2002) Jet vectoring using synthetic jets. J Fluid Mech 458:1–34
Stemme E, Stemme G (1993) A valveless diffuser/nozzle-based fluid pump. Sensors Actuators A Phys 39:159–167
Tesař V (2007) Pressure-driven microfluidics. Artech House Publishers, Norwood, p 118
Tesař V (2008) Valveless rectification pumps. Encycl. Microfluid. Nanofluidics. Springer, New York, pp 2131–2139
Tesař V, Kordík J (2013a) Effective hydraulic resistance of a nozzle generating hybrid-synthetic jet in an electrodynamic actuator—Part II: analysis and correlations. Sensors Actuators A Phys 199:391–400
Tesař V, Kordík J (2013b) Effective hydraulic resistance of a nozzle in an electrodynamic actuator generating hybrid-synthetic jet—Part I: data acquisition. Sensors Actuators A Phys 199:379–390
Tesař V, Trávníček Z, Kordík J, Randa Z (2007) Experimental investigation of a fluidic actuator generating hybrid-synthetic jets. Sensors Actuators A Phys 138:213–220
Tesař V, Zhong S, Rasheed F (2013) New fluidic-oscillator concept for flow-separation control. AIAA J 51:397–405
Trávníček Z, Tesař V (2003) Annular synthetic jet used for impinging flow mass-transfer. Int J Heat Mass Transf 46:3291–3297
Trávníček Z, Fedorchenko A, Wang AB (2005) Enhancement of synthetic jets by means of an integrated valve-less pump: part I. Design of the actuator. Sensors Actuators A Phys 120:232–240. doi:10.1016/j.sna.2004.11.017
Trávníček Z, Vít T, Tesař V (2006) Hybrid synthetic jets as the nonzero-net-mass-flux synthetic jets. Phys Fluids 18:081701–1–081701–4
Trávníček Z, Tesař V, Kordík J (2008) Performance of synthetic jet actuators based on hybrid and double-acting principles. J Vis 11:221–229
Trávníček Z, Broučková Z, Kordík J (2012a) Formation criterion for axisymmetric synthetic jets at high Stokes numbers. AIAA J 50:2012–2017
Trávníček Z, Němcová L, Kordík J et al (2012b) Axisymmetric impinging jet excited by a synthetic jet system. Int J Heat Mass Transf 55:1279–1290
Trávníček Z, Tesař V, Kordík J, et al. (2013) Způsob vstupu tekutiny do generátoru hybridního syntetizovaného proudu a zařízení k provádění tohoto způsobu, CZ Patent No. 304219, 2013
White FM (1991) Viscous Fluid Flow, 2nd edn. McGraw-Hill Inc., New-York
Yastrebova EV (1971) Fluidic diodes (review). Autom i Telemech 3:101–106
You D, Moin P (2008) Active control of flow separation over an airfoil using synthetic jets. J Fluids Struct 24:1349–1357
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The authors gratefully acknowledge the support of the Grant Agency CR (project number P101/12/P556) and the institutional support RVO:61388998.
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Kordík, J., Broučková, Z. & Trávníček, Z. Impinging jet-based fluidic diodes for hybrid synthetic jet actuators. J Vis 18, 449–458 (2015). https://doi.org/10.1007/s12650-014-0251-0
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DOI: https://doi.org/10.1007/s12650-014-0251-0