Design and Process Engineering
· Designing, construction, calculation, technology of manufacturing, technical preparation of manufacturing including assembly and testing,
· Thermal and nuclear power plant devices such as steam and combustion turbines, steam generators, steam power plants and heating plants including nuclear power stations, industrial power engineering and their environmental aspects,
· Water turbines, hydrodynamic and hydrostatic pumps, piping systems, hydroelectric power plants, and pumping stations,
· Machinary and devices for chemical industry, food-stuff industry, and biotechnological treatment lines,
· Construction, modelling and theoretical studies of machines and devices for cutting, forming machines, industrial robots, and manipulators,
· Machine parts and mechanisms, methodology of designing machine elements and working mechanisms of general application with consideration of stochastic qualities of inputs, including the application of special types of machines and devices,
· Cars, vans and lorries, buses, trailers, semi-trailers, and motorcycles,
· Combustion engines for all types of vehicle drives, simulation of combustion engine thermomechanical systems, dynamics of driving gear, engine accessories, ecology,
· Machines and devices for in-plant handling of material and handling between operations, for the mining and transport of building materials, for passenger conveyance in buildings,
· Aerodynamic calculation and designing, flight mechanics, fatigue and durability of aircraft constructions, aeroelasticity of aircraft,
· Quality of machine industry production.

prof. Ing. Václav Píštěk, DrSc.

1. Analysis of the Fluid Flow in Pipes Circular and Not Circular Cross-Section With Methods Using Distribution of the Vorticity Density.

   It is possible to solve fluid flow by using distribution of vorticity in the fluid domain. New analytical formulas for velocity profiles in pipes of circular cross-section and between two parallel plates was derived at the department of Fluid Engineering V. Kaplana. These analytical formulas can be used for both laminar and turbulent flow. The power coefficient appears in these formulas. It depends on the Reynolds number, pressure drop and flow rate. The tasks of this work are: -the experimental verification new the analytical formula of velocity profile for the pipe of the circular cross-section. -the extension of this formula for the pipe with the no circular cross-section -the determining of the influence of the wall roughness and the wettability on the velocity profile formula.

   Tutor: Štigler Jaroslav, doc. Ing., Ph.D.

2. Analysis of unsteady phenomena induced by flow instabilities

   Aim of the study is unsteady flow induced by boundary conditions, especially centrifugal forces. Different vortical structures ant their stability will be investigated.

   Tutor: Pochylý František, prof. Ing., CSc.

3. Bearing and hydrodynamic gap with elastic lining

   Aim of the PhD study is design of journal bearing and hydrodynamic sealing gap with elastic lining. It is a coupled hydroelasticity problem. Tensors of the added actions (mass, damping, stiffness) will be the solution results. Interaction between the elastic lining and rheological fluid is assumed. The thesis will be supported by a grant project of the Ministery of Trade and Industry.

   Tutor: Pochylý František, prof. Ing., CSc.

4. Hybrid pump

   Pump is based on two principles: centrifugal pump + side channel pump. Aim of the study is optimization of both principles, especially for low specific speed pumps.

   Tutor: Pochylý František, prof. Ing., CSc.

5. Influence of pressure pulsations in a liquid on forming, morphology and properties of pulsating water jet

   Generating of pulsating water jets represents one of methods of enhancing water jetting technology performance. A special method of the generation of the pulsating water jet, based on the generation of pressure waves by the action of the acoustic transducer on the pressure liquid and their transmission via pressure system to the nozzle was recently developed. The work will be focused on study of the influence of pressure pulsations generated in a high-pressure system on forming and properties of pulsating liquid jet using visualization of the jet to define the influence of amplitude and frequency of pressure pulsations and geometrical configuration of the high-pressure system on forming and morphology of pulsating liquid jet.

   Tutor: Foldyna Josef, Ing., CSc.

6. Process of generating and propagation of high-frequency press pulsations in liquid via high-pressure system with respect to generation of pulsating water jet

   Generating of pulsating water jets represents one of methods of enhancing water jetting technology performance. A special method of the generation of the pulsating water jet, based on the generation of pressure waves by the action of the acoustic transducer on the pressure liquid and their transmission via pressure system to the nozzle was recently developed. The work will be focused on theoretical and experimental studies of fundamentals of the process of excitation and propagation of high-frequency pressure pulsations in a liquid and determination of the influence of the amplitude and frequency of excitation and geometrical configuration of the high-pressure system on propagation of pressure pulsations. The objective is to generate highly effective pulsating water jet with required properties.

   Tutor: Foldyna Josef, Ing., CSc.

7. Stability of the cavitating vortex rope

   Aim of the proposed postgradual study is investigation of the cavitating structures induced by rotation of liquid. The research will be carried out on a test circuit, where spectral properties of the cavitating flow will be measured and cavitating structures will be visualized. Computational modeling based on cavitation models in present CFD softwares will also be a part of the study. Transition between straight vortex rope and spiral vortex rope will be sought in connection with inlet velocity profile and domain shape. PhD study will proceed along with work on the grant project GAČR 101/09/1715 Cavitating vortical structures induced by rotation of liquid.

   Tutor: Štigler Jaroslav, doc. Ing., Ph.D.

8. The design of a jet on principle of ejector for cooling

   The aim doctoral study is a design of special jet with possibility of air leech onto. The solution will be based on computational modelling two-phase flow in the jet. The jet will be designed with respect to using the cooling (cylinders in rolling of sheet metal, instruments). This study will be supported by MPO project.

   Tutor: Pochylý František, prof. Ing., CSc.

9. Valve exploiting principle of the side-channel turbine

   All current valves are source of hydraulic loss. Aim of the PhD study is design of a new hydraulic valve, which will be based on low specific speed turbine. Design of the turbine will reflect the loss characteristic curve of the valve. This will ensure 50% recuperation of the supplied energy. Solution will be based on computational modeling of the turbulent flow and experimental research. PhD study will be supported by Strojirny Brno inc.

   Tutor: Pochylý František, prof. Ing., CSc.

10. Verifying of Boundary Vorticity Elements Method with Continuous Distribution of Vorticity on Solution of 2D Fluid Flow Round Single Hydrofoil.

    The Boundary Vorticity Elements Method with Continuous Distribution Vorticity has a promising future in area of vortex fluid flow modeling. This method brings a new aspects and possibilities in this area. Basic theoretical principles of this method have been developed. It is important to verify and the possibilities of this method on the practical examples. It is important to choose proper boundary conditions for vorticity distribution or choose proper method to fulfilling the Kuta-Zukovskij condition of smooth profile outflow.

    Tutor: Štigler Jaroslav, doc. Ing., Ph.D.