doc. Ing. Jaroslav Štigler, Ph.D.
E-mail:   stigler@fme.vutbr.cz  Dept.:   Energy Institute Position:   Institute Secretary Room:   A1/0521 Dept.:   Energy Institute Victor Kaplan Dept. of Fluid Engineering Position:   Deputy Head Room:   A1/0521 Dept.:   Energy Institute Victor Kaplan Dept. of Fluid Engineering Position:   Associate Professor Room:   A1/0521

Supervised courses:

• Advanced Fluid Mechanics (LMT)
• Applied Hydrodynamics (9APH)
• Design and Operation of Water and Wastewater Treatment Plants (MUV)
• Hydromechanics (5HY-A)
• Hydromechanics (5HY-A)
• Hydromechanics (5HY)
• Hydromechanics (5HY-K)
• Hydromechanics (5HY)

Publications:

• ŠTIGLER, J.:
  Contribution to investigation of turbulent mean-flow velocity profile in pipe of circular cross-section,
  Proceedings of the 35 Meeting of Departments of Fluid Mechanics and Thermomechanics, pp.1-13, ISBN 978-0-7354-1426-6, (2016)
  conference paper
  akce: 35TH MEETING OF DEPARTMENTS OF FLUID MECHANICS AND THERMOMECHANICS, Šamorín – Čilistov, 20.06.2016-23.06.2016
• SOUKUP, L.; ŠTIGLER, J.; KHARICHA, A.:
  Investigation of Possible Causes of the Additional Torque on the Yacht’s Rudder,
  Proceedings of the International conference Experimental Fluid Mechanics 2015, pp.725-730, (2016), EDP Sciences
  conference paper
  akce: Experimental fluid mechanics 2015, Praha, 17.11.2015-20.11.2015
• ŠTIGLER, J.; KLAS, R.; ŠPERKA, O.:
  Characteristics of the T-junction with the equal diameters of all branches for the variable angle of the adjacent branch, EDP Sciences
  journal article in Web of Science
  akce: Experimental fluid mechanics 2013, Kutná Hora, 19.11.2013-22.11.2013
• ŠTIGLER, J.; ŠPERKA, O.:
  Characteristics of the pipe junction with 2.4 cross-section area ratio for the case of the flow division.,
  EPJ Web of Conferences, pp.1-6, ISBN 978-80-7372-912-7, (2013), EDP Sciences
  conference paper
  akce: Experimental Fluid Mechanics 2012, Hradec Králové, 20.11.2012-23.11.2012
• ŠTIGLER, J.; ŠPERKA, O.; KLAS, R.:
  A fluid flow in the pipe junction with 6,25 corss-section area ratio. The influence of the adjacent branch angle on the pipe junction charcteristics.,
  IOP Conference Series-Earth and Environmental Science, pp.1-8, (2012)
  conference paper
  akce: 26th IAHR Symposium on Hydraulic Machinery and Systems, Beijing, 19.08.2012-23.08.2012
• ŠTIGLER, J.:
  Analytical velocity profile in tube for laminar and turbulent flow,
  XXXI. ročník mezinárodní konference Setkání kateder mechaniky tekutin a termomechaniky 2012, pp.677-682, ISBN 978-80-214-4529-1, (2012), VUT Brno
  conference paper
  akce: 31. setkání kateder mechaniky tekutin a termomechaniky, Mikulov, 26.06.2012-28.06.2012
• ŠTIGLER, J.:
  Introduction of the Analytical Trubulent Velocity Profile Between Two Parallel Plates.,
  Engineering Mechanics 2011. 17th International Conference. Book of Flull Texts., pp.328-329, ISBN 978-80-87012-33-8, (2012)
  conference paper
  akce: Engineering Mechanics 2011, Svratka, 09.05.2011-12.05.2011
• ŠTIGLER, J.; KLAS, R.; KOTEK, M.; KOPECKÝ, V.:
  The Fluid Flow in the T-Junction. The Comparison of the Numerical Modelling and PIV Measurement.,
  Těorija i praktika nacoco - i kompressorostrojenija, pp.240-247, ISBN 978-966-657-384-4, (2011)
  book chapter
• ŠTIGLER, J.; KLAS, R.; KOTEK, M.; KOPECKÝ, V.:
  The Fluid Flow in the T-Junction the Comparison of the Numerical Modelling and PIV Measurement,
  Procedia Engineering, Vol.39, (2011), No.1, pp.19-27, ISSN 1877-7058, Elsevier
  journal article - other
• BENEŠ, L.; LOUDA, P.; KOZEL, K.; KESLEROVÁ, R.; ŠTIGLER, J.:
  Numerical simulations of flow through channels with T-junction,
  APPLIED MATHEMATICS AND COMPUTATION, Vol.2011, (2011), No.1, pp.1-11, ISSN 0096-3003
  journal article - other
• ŠTIGLER, J.; HALUZA, M.; BÍLEK, M.:
  Preliminary Design of Basic Parameters of the Aerator,
  Engineering Mechanics 2011. 17th International Conference. Book of Flull Texts., pp.603-606, ISBN 978-80-87012-33-8, (2011)
  conference paper
  akce: Engineering Mechanics 2011, Svratka, 09.05.2011-12.05.2011
• ŠTIGLER, J.:
  T-part as an Element of the Pipe-line system. The Introduction of the Mathematical Model of the FLuid FLow in T-part for the Arbitrary Angle of the Adjacent Branch.,
  IOP Conference Series-Earth and Environmental Science, pp.1-10, (2010)
  conference paper
  akce: 25th IAHR Symposium on Hydraulic Machinery and Systems, Timisoara, 20.09.2010-24.09.2010
• ŠTIGLER, J.; SVOZIL, J.:
  Modeling of Cavitation flow on NACA 0015 Hydrofoil,
  Engineering Mechanics, Vol.16, (2009), No.6, pp.447-455, ISSN 1802-1484, Engineering Academy of the Czech Republic
  journal article - other
• ŠTIGLER, J.:
  Mathematical Model of the Unsteady Fluid Flow Through Tee-Junction,
  Buletinul Stiintific al Universitatii "Politechnica" din Timisoara Romania, Vol.52 (66), (2007), No.6, pp.83-92, ISSN 1224-6034, Politehnica University of Timisoara, Romania
  journal article - other

List of publications at Portal BUT

Abstracts of most important papers:

• ŠTIGLER, J.:
  Contribution to investigation of turbulent mean-flow velocity profile in pipe of circular cross-section,
  Proceedings of the 35 Meeting of Departments of Fluid Mechanics and Thermomechanics, pp.1-13, ISBN 978-0-7354-1426-6, (2016)
  conference paper
  akce: 35TH MEETING OF DEPARTMENTS OF FLUID MECHANICS AND THERMOMECHANICS, Šamorín – Čilistov, 20.06.2016-23.06.2016
  This paper deals with problem of mean-flow velocity profiles for a turbulent flow in a pipe of circular cross-section. There are mentioned some very well-known analytical formulas of mean-flow velocity profiles and also new formulas based on the vorticity density distribution over the pipe cross-section. All of them are analyzed and compared with a measurement. There is given an explanation of all coefficients and their physical meaning. Some formulas for the coefficients are improved on the basis of experimental data. There is also a discussion about the precision of all mean-flow velocity profiles and there are given some ideas why they don’t fit well in some regions of flow at the end of the paper.
• ŠTIGLER, J.; KLAS, R.; ŠPERKA, O.:
  Characteristics of the T-junction with the equal diameters of all branches for the variable angle of the adjacent branch, EDP Sciences
  journal article in Web of Science
  akce: Experimental fluid mechanics 2013, Kutná Hora, 19.11.2013-22.11.2013
  Basic aim of this paper is to bring out the characteristics of the T-junctions. T-junction consists of the one straight pipe and the adjacent branch which can be inclined under different angle. These characteristics were done for the T-junctions with equal diameters of all branches and for five different angles of the adjacent branch. There is also included comparison between characteristics obtained by the numerical calculation and by the experiment in this paper.
• ŠTIGLER, J.; KLAS, R.; KOTEK, M.; KOPECKÝ, V.:
  The Fluid Flow in the T-Junction the Comparison of the Numerical Modelling and PIV Measurement,
  Procedia Engineering, Vol.39, (2011), No.1, pp.19-27, ISSN 1877-7058, Elsevier
  journal article - other
  There is presented the fluid flow in the T-junction with the 90 degree angle of the adjacent branch and with the 50mm diameter of each branch, in this chapter. The flow is organized as a combining flow. It means that there are two inlet branches and only one outlet branch. There are two possible kinds of the flow combinations for this T-junction. The CFD calculations and the PIV measurements were done for both flow combinations. Its comparison is presented in this paper.
• BENEŠ, L.; LOUDA, P.; KOZEL, K.; KESLEROVÁ, R.; ŠTIGLER, J.:
  Numerical simulations of flow through channels with T-junction,
  APPLIED MATHEMATICS AND COMPUTATION, Vol.2011, (2011), No.1, pp.1-11, ISSN 0096-3003
  journal article - other
  The paper deals with numerical solution o f laminar and turbulent flows of Newtonian and non-Newtonian fluids in branched channels with two outlets. Mathematical model of the flow is based on the Reynolds averaged Navier-Stokes equations for the incompressible fluid. In the turbulent case, the closure of the system of equations is achieved by the explicit algebraic Reynolds stress (EARSM) turbulence model. Generalized non-Newtonian fluids are described by the power-law model. The governing equations are solved by cell-centered finite volume schemes with the artificial compressibility method; dual time scheme is applied for unsteady simulations. Channels considered in presented calculations are of constant square or circular corss-sections. Numerical results for laminar flow of non-Newtonian fluid are presented. Further, turbulent flow through channesl with perpendicular branch is simulated. Possible methods for setting the flow rate are discused and numerical results presented for two flow rates in the branch.
• ŠTIGLER, J.:
  T-part as an Element of the Pipe-line system. The Introduction of the Mathematical Model of the FLuid FLow in T-part for the Arbitrary Angle of the Adjacent Branch.,
  IOP Conference Series-Earth and Environmental Science, pp.1-10, (2010)
  conference paper
  akce: 25th IAHR Symposium on Hydraulic Machinery and Systems, Timisoara, 20.09.2010-24.09.2010
  The new mathematical model of the fluid flow in T-part with adjacent branch of the arbitrary angle is introduced in this article. This paper relates to the previous author's research. The previous work was focused only on the case with the angle of the adjacent branch 90 degrees. The aim of this work is to explain main ideas applied during the derivation of the mathematical model of T-part. This mathematical model can be used as a tool for solution of steady and unsteady flow in pipeline systems. The coefficients describing fluid flow in the T-part are specified in this model. They can be used in the designing of the optimal shape of the pipe bifurcation as a criterion for the different T-part designs comparison. This research is in the process now therefore only theory of extended mathematical model is presented in this paper. The measurements and the numerical modeling of the fluid flow in this T-part are going to be done soon.