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National Repository of Grey Literature 5 records found  Search took 0.00 seconds. 
Comparative analysis of the gas flow through the aperture at low pressures using the continuum mechanics with the Monte Carlo method
 Mardanova, Elvira ; Bílek, Michal (referee) ; Maxa, Jiří (advisor)
This thesis is based on the series of scholarly article dedicated to the issue ofpumping in the differential scanning chamber of an environmental scanning microscope. The thesis is based on Danilatos’s study where the pumping of the differential pumped chamber is solved by means of the Monte Carlo statistical method. The thesis performs analysis of gas flow at low pressures through orifice separating the spaces with a large pressure drop Dr. Danilate. The analyses will be used for the design of the experimental chamber which will serve for the experimental evaluation of the flow results in the chamber using the continuum mechanics.
Detailed record
Analysis of supersonic flow in experimental chamber by insertion of pressure and temperature probes
 Šabacká, Pavla ; Bílek, Michal (referee) ; Maxa, Jiří (advisor)
For the supersonic flow mode, which occurs in the internal flow behind the aperture separating two spaces with a large pressure drop, the critical flow is a characteristic phenomenon. In the case of critical flow behind the aperture, a supersonic flow area with reduced pressure ending with a shock wave with a step change in state variables is created. When diagnosing velocities, which are obtained from the values of static and total pressure, due to the changes caused by the shock wave passage, correction of the diagnostic quantities obtained by measuring by means of mathematical relations taking into account the physical phenomena is necessary.
Detailed record
Comparative analysis of the gas flow through the aperture at low pressures using the continuum mechanics with the Monte Carlo method
 Mardanova, Elvira ; Bílek, Michal (referee) ; Maxa, Jiří (advisor)
This thesis is based on the series of scholarly article dedicated to the issue ofpumping in the differential scanning chamber of an environmental scanning microscope. The thesis is based on Danilatos’s study where the pumping of the differential pumped chamber is solved by means of the Monte Carlo statistical method. The thesis performs analysis of gas flow at low pressures through orifice separating the spaces with a large pressure drop Dr. Danilate. The analyses will be used for the design of the experimental chamber which will serve for the experimental evaluation of the flow results in the chamber using the continuum mechanics.
Detailed record
Analysis of supersonic flow in experimental chamber by insertion of pressure and temperature probes
 Šabacká, Pavla ; Bílek, Michal (referee) ; Maxa, Jiří (advisor)
For the supersonic flow mode, which occurs in the internal flow behind the aperture separating two spaces with a large pressure drop, the critical flow is a characteristic phenomenon. In the case of critical flow behind the aperture, a supersonic flow area with reduced pressure ending with a shock wave with a step change in state variables is created. When diagnosing velocities, which are obtained from the values of static and total pressure, due to the changes caused by the shock wave passage, correction of the diagnostic quantities obtained by measuring by means of mathematical relations taking into account the physical phenomena is necessary.
Detailed record
Modulation of waterjet by ultrasonic: Measurement of dynamic pressure and force effects
 Foldyna, Josef ; Sitek, Libor ; Jekl, Pavel ; Nováková, Daria
Series of measurement of a dynamic pressure inside the ultrasonic nozzle under its various configurations were performed within the framework of research focused on modulation of waterjet by ultrasonic. Results of measurement are compared and discussed in the paper.
Detailed record

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