Numerical simulation of flow
Compressible liquid flow in the nozzle for high-speed water jet technology represents main application of numerical simulation in the department. Mathematical models are created using software ANSYS. Models allow to study liquid behaviour in the nozzle and downstream the nozzle exit. Subsequently, the whole solved assembly is optimized to obtain the best efficiency of the simulated system. Created modifications are verified by laboratory experiments.
Knowledge and skills obtained while using ANSYS software are utilized also for solving problems in cooperation with industry. The department offers help in wide area of liquid flow and stress analysis. Our researchers are able to participate in solving of various problems from flow of compressible fluids through mixture and multiphase flows to combustion and heat exchange etc.
Selected publications
- Foldyna, J., Říha, Z., Sitek, L., Švehla, B. Numerical simulation of transmission of acoustic waves in high pressure system. Proceedings of the International Congress on Ultrasonics, Vienna, April 9-13, 2007, Paper ID 1456, Session R12: High power ultrasonic processing. doi:10.3728/ICUltrasonics.2007.Vienna.1456_foldyna.
- Foldyna, J. Říha, Z. Sitek, L. Calculation of natural frequency of high-pressure system (in Czech). ANSYS 2008. Brno: SVS FEM, 2008. S. 1-7. ISBN 978-80-254-3355-3. ANSYS conference 2008 Luhačovice (CZ), 05. 11. 2008 - 07. 11. 2008
- Foldyna, J., Říha, Z., Sitek, L. Study of propagation of pressure pulsations in high-pressure system. Ansys 2009. Plzeň: TechSoft Engineering, 2009. S. 111-118. ISBN 978-80-254-5437-4.
- Foldyna, J. Research and development of pulsating water jets. In Pacific Rim International Conference on Water Jetting Technology /9./ Proceedings. Koriyama: Water Jet Technology Society of Japan, 2009. S. 171-179. ISBN 4-902590-14-8.