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doc. Ing. Zdeněk Trávníček, CSc.

Phone +420 266 053 302, +420 266 053 483 E-mail tr@it.cas.cz Room M2507 Department Department D 2 - Thermodynamics Position Deputy Head of Department, Head of Laboratory of Heat and Mass Transfer Research area Experimental fluid mechanics and heat/mass transfer. Passive/active control of thermal/flow fields. Forced convective heat/mass transfer enhancement. Impinging, pulsatile, and synthetic jets; wakes.
Curriculum vitae
2014              Associate Professor "Non-isothermal wakes and impinging jets"
since 2008   Deputy Head of Department of Thermodynamics
since 2004   Head of Laboratory of Heat and Mass Transfer
since 1996   Institute of Thermomechanics, AS CR, v. v. i.
1994              CSc.-degree (equivalent to Ph.D.) „Coanda effect used for impinging drying“
1985-1995   SVÚSS Prague-Běchovice (National Research Institute for Machine Design) as research assistant,
                       then researcher, finally the head of Laboratory of Impingement Drying
1985             Ing. (equivalent to M.Sc.), Czech Technical University (CTU) in Prague, Faculty of Mechanical Engineering

Stays abroad
2000–2001 Johns Hopkins University, Baltimore, USA (5 months)
1998–1999 and 2002–2003 National Taiwan University, Institute of Applied Mechanics, Taiwan R.O.C. (2 years)
1990             ITTF, Institute of Technical Thermophysics, National Academy of Sciences of Ukraine, Kiev, Ukraine
                      (2 months with Prof. E.P. Dyban)

Publications
185 papers in various journals and conference proceedings, 34 of them are in „impacted journals”;
42 research reports, and six Patent Certificates granted from USA (2), Taiwan R.O.C. (2) and CR(2).

Citations: Number of citations recorded by ISI Web of Knowledge (without self-citations) is more than 200.
View author's publications in the ASCR database
Selected publications
Representative journal papers
  • Z. Trávníček, A.–B. Wang, W.–Y. Tu, Laminar vortex shedding behind a cooled circular cylinder. Exp. Fluids 55 (2014), 1679.
  • Z. Trávníček, V.Tesař, Z. Broučková, K. Peszyński, Annular impinging jet controlled by radial synthetic jets. Heat Transfer Engineering 35 (2014) 1450–1461.
  • Z. Trávníček, A.-B. Wang, V. Lédl, T. Vít, Y.-C. Chen, F. Maršík, Holographic-interferometric and thermoanemometric study of a thermoacoustic prime mover. Journal of Mechanics 29 (2013), 59–66.
  • Z. Trávníček, V. Tesař, Hysteresis in annular impinging jets. Experimental Thermal and Fluid Science 44 (2013) 565–570.
  • Z. Trávníček, Z. Broučková, J. Kordík, Formation criterion for synthetic jets at high Stokes numbers. AIAA J. 50 (2012) 2012–2017.
  • Z. Trávníček, A.I. Fedorchenko, M. Pavelka, J. Hrubý, Visualization of the hot chocolate sound effect by spectrograms. Journal of Sound and Vibration 331 (2012) 5387–5392.
  • Z. Trávníček, L. Němcová, J. Kordík, V. Tesař, V. Kopecký, Axisymmetric impinging jet excited by a synthetic jet system. Int. J. Heat Mass Transfer 55 (2012) 1279–1290.
  • Z. Trávníček, A.-B. Wang, On the effective temperature and Reynolds number concept for a heated circular cylinder: commentary of the article by Baranyi et al. Journal of Mechanical Science and Technology 25 (2011) 1881–1884.
  • Z. Trávníček, V. Tesař, J. Kordík, Performance of synthetic jet actuators based on hybrid and double-acting principles. Journal of Visualization 11 (2008) 221–229.
  • Z. Trávníček, T. Vít, V. Tesař, Hybrid synthetic jet as the non-zero-net-mass-flux jet. Physics of Fluids 18 (2006) 081701-1 – 081701-4.
  • Z. Trávníček, V. Tesař, Annular synthetic jet used for impinging flow mass-transfer. Int. J. Heat Mass Transfer 46 (2003) 3291–3297.
  • A.-B. Wang, Z. Trávníček, K.-C. Chia, On the relationship of effective Reynolds number and Strouhal number for the laminar vortex shedding of a heated circular cylinder. Physics of Fluids 12 (2000) 1401–1410.
Refereed papers in recent conference proceedings
  • Z. Trávníček, Z. Broučková, J. Kordík, Visualization of synthetic jet formation in air. In: The 12th International Symposium on Fluid Control, Measurement and Visualization FLUCOME2013. Nara, Japan, Nov. 18-23, 2013, OS6-02-2.
  • Z. Trávníček, V.Tesař, Z. Broučková, K. Peszyński, Annular impinging jet controlled by radial synthetic jets, in: 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, HEFAT 2012, Malta, July 16–18, 2012, 487–493.
  • Z. Trávníček, V. Tesař, An annular impinging jet alternated by pulse-modulated synthetic jets. In: 8th ASME-JSME Thermal Engineering Joint Conference (AJTEC2011), March 13– 17, 2011, Honolulu, Hawaii, USA, AJTEC2011-44128.
Patents
  • A.-B. Wang, Z. Trávníček, Y.-H. Wang, M.-C. Hsu, Double-acting device for generating of synthetic jets. US Patent, No. US 7527086 B2, May 5, 2009.
  • A-.B. Wang, Z. Trávníček, Y.-H. Wang, M.-C. Hsu, Double-acting device for generating of synthetic jets. Patent Certificate of Taiwan R.O.C. No. I 267 616, 2006/12/01, valid period 2006–2024.
  • A.-B.Wang, Z.Trávníček, C.-H.Lee, Y.-H.Wang, M.-C.Hsu, C.-K.Lee, A.I.Fedorchenko, Micromixer apparatus and method therefor. Patent Certificate of Taiwan R.O.C. No. I 249 431, 2006/02/21, valid period 2006–2025.
Researcher ID: G-7108-2014
Projects
2014-2016 14-08888SŘízení proudových polí pomocí oscilací tekutiny
2011-2013 GCP101/11/J019Thermoacoustic prime mover
2009-2011 GA101/09/1959Passive and active flow control in channels of centrifugal stage with forward curved blades
2008-2012 IAA200760801Pulsatile jets for control of flow fields
2005-2009 IAA200760504Temperature control of a bluff body wake
2005-2007 GA101/05/2681Heat/mass transfer of impinging pulsatile jets controlled by large coherent structures
1999-2001 GA101/99/0060Zvyšování transportních součinitelů konvektivních procesů využitím modulovaných tekutinových proudů
Teaching
External lecturer of Experimental Fluid Mechanics (TU Liberec).
Supervisor of Ph.D. and M.Sc. students.

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