prof. Ing. Václav Píštěk, DrSc.

1. Development of algorithms for solving heat and mass transfer with phase and structural changes using GPU

   The theme is aimed at the development of numerical algorithms designed primarily for solving heat transfer with phase transformations using high parallelization of code. For the solution should fully take advantage of special graphic processor units TESLA. Expected to use MATLAB and C + +. Algorithms can be network-oriented methods (eg method of control volumes) or mesh free methods.

   Tutor: Štětina Josef, prof. Ing., Ph.D.

2. Development of simulation tool for semi-hermetic compressor with the objectives to improve efficiency

   Design of a simulation tool for thermodynamic analysis of the compressor cycle and as a tool to design the compressor valve plate. The main focus will be done to the design of compressor valve plate with suction and discharge valves. The tool should content dynamics of the valve during suction and mainly discharge. Detailed components of the compressor will be solved by using a full 3D simulation tool for fluid dynamics CFD.

   Tutor: Jícha Miroslav, prof. Ing., CSc.

3. Meshless methods for computational aeroacoustics

   To perfom a critical study in the area of meshless methods and their assessment from the point of noise propagation in the near- and far-field. Coupling of the method with acoustic analogies for free jet and other shear flows.

   Tutor: Jícha Miroslav, prof. Ing., CSc.

4. Smart mobile data acqusition system for environmental engineering

   The theme is aimed at the development of modern measuring system based on hardware and software from National Instrument. In particular, take advantage of a Real-time operating systems and FPGA technology.

   Tutor: Štětina Josef, prof. Ing., Ph.D.

5. Study of twin-fluid nozzles and atomization process of liquids in broad spectrum of viscosities

   To give an overview and classification of published designs of twin-fluid internal-mixing atomizers. To chose several the most prosperous atomizers, optimize their geometry based on publish data and fabricate them for experimental study. To upgrade present cold spray test bench for twin-fluid atomizers and extend the test bench for usage of different liquids. To test these atomizers in wide range of operation pressures and GLR and with several liquids of different viscosity. To study and compare directly their atomization characteristics with focus on atomization efficiency and spray steadiness. To describe spray structure of the selected twin-fluid atomizers and to elucidate their break-up mechanism in detail. in numerical simulations as input data.

   Tutor: Jícha Miroslav, prof. Ing., CSc.

6. Study of twin-fluid nozzles and atomization process of liquids in broad spectrum of viscosities

   To give an overview and classification of published designs of twin-fluid internal-mixing atomizers. To chose several the most prosperous atomizers, optimize their geometry based on publish data and fabricate them for experimental study. To upgrade present cold spray test bench for twin-fluid atomizers and extend the test bench for usage of different liquids. To test these atomizers in wide range of operation pressures and GLR and with several liquids of different viscosity. To study and compare directly their atomization characteristics with focus on atomization efficiency and spray steadiness. To describe spray structure of the selected twin-fluid atomizers and to elucidate their break-up mechanism in detail. in numerical simulations as input data.

   Tutor: Jícha Miroslav, prof. Ing., CSc.

7. The optimization attenuation of fluid temperature oscillations using latent heat thermal storage

   The scope of the theme is the attenuation of fluid temperature oscillations by means of latent heat thermal storage. The phase change of matter at constant pressure is almost an isothermal process and it is associated with the transfer of huge amount of heat (latent heat). This phenomenon can be employed in order to attenuate oscillations of fluid temperature. The investigations will focus on the attenuation characteristics of latent heat thermal storage with regard to thermal properties of the thermal storage material (heat of fusion, thermal conductivity). The studied cases will include the step change of fluid temperature and the periodic changes of fluid temperature (square wave, sinusoidal). The attention will be paid to the attenuation characteristics of latent heat thermal storage for various amplitudes and frequencies of the fluid temperature changes.

   Tutor: Štětina Josef, prof. Ing., Ph.D.