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David Šimurda
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Proceedings Papers

Pressure Loss Analysis and its Prediction in Typical Valve Designs for Steam Turbines

Vaclav Slama, Bartolomej Rudas, David Šimurda, Jindřich Hála
Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A004, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101134
https://doi.org/10.1115/GT2023-101134
View Paper titled, Pressure Loss Analysis and its Prediction in Typical Valve Designs for Steam Turbines
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Topics: Pressure, Steam turbines, Valves, Flow (Dynamics), Computer simulation, Design, Manufacturing, Turbines, Computer software, Diffusers
Journal Articles

Quasi-Dynamic Approximation of Unsteady Pressure Distribution for Transonic Airfoils in Flutter

Jan Lepicovsky, David Šimurda, Robert E. Kielb, Petr Šidlof, Martin Štěpán
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2023, 145(8): 081010.
Paper No: TURBO-22-1366
https://doi.org/10.1115/1.4062181
Published Online: April 12, 2023
View Article titled, Quasi-Dynamic Approximation of Unsteady Pressure Distribution for Transonic Airfoils in Flutter
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Topics: Blades, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Cascades (Fluid dynamics), Test facilities, Mach number
Proceedings Papers

Exploratory Experiments for Simple Approximation of Blade Flutter Aerodynamic Loading Function

Jan Lepicovsky, David Simurda, Petr Sidlof, Martin Luxa
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A023, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83351
https://doi.org/10.1115/GT2022-83351
View Paper titled, Exploratory Experiments for Simple Approximation of Blade Flutter Aerodynamic Loading Function
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Topics: Approximation, Blades, Cascades (Fluid dynamics), Flutter (Aerodynamics)
Proceedings Papers

Pressure Losses Analysis in Two High-Pressure Steam Turbine Control Valves Situated in One Valve Chamber

Vaclav Slama, Bartolomej Rudas, David Simurda, Jindrich Hala, Martin Luxa
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A002, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78969
https://doi.org/10.1115/GT2022-78969
View Paper titled, Pressure Losses Analysis in Two High-Pressure Steam Turbine Control Valves Situated in One Valve Chamber
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Topics: High pressure (Physics), Pressure, Steam turbines, Valves, Flow (Dynamics), Stress, Computer simulation, Computer software, Design, Energy conversion
Proceedings Papers

Development of Loss Correlation and Tool Validation at Transonic Condition Based on Cascade Test

Jaewoo Choi, David Simurda, Jaewook Song, Martin Luxa, Sungryong Lee, Jindrich Hala, Jan Lepicovsky, Tomas Radnic, Junhyuk Seo
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A002, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-01771
https://doi.org/10.1115/GT2021-01771
View Paper titled, Development of Loss Correlation and Tool Validation at Transonic Condition Based on Cascade Test
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Topics: Cascades (Fluid dynamics)
Proceedings Papers

Investigation of Pressure Losses and Flow Fluctuations in an Intercept Valve Assembly of an Intermediate-Pressure Turbine Part

Vaclav Slama, Lukas Mrozek, Bartolomej Rudas, David Simurda, Jindrich Hala, Tomas Radnic
Proc. ASME. IMECE2020, Volume 8: Energy, V008T08A026, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23359
https://doi.org/10.1115/IMECE2020-23359
View Paper titled, Investigation of Pressure Losses and Flow Fluctuations in an Intercept Valve Assembly of an Intermediate-Pressure Turbine Part
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Topics: Flow (Dynamics), Fluctuations (Physics), Manufacturing, Pressure, Turbine components, Valves, Design, Computer simulation, Flow separation, Pipelines
Proceedings Papers

Experimental and Numerical Study on Pressure Losses and Flow Fluctuations in a High-Pressure Valve Assembly of Steam Turbine Governing System

Vaclav Slama, Lukas Mrozek, Bartolomej Rudas, David Simurda, Jindrich Hala, Martin Luxa
Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A007, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14474
https://doi.org/10.1115/GT2020-14474
View Paper titled, Experimental and Numerical Study on Pressure Losses and Flow Fluctuations in a High-Pressure Valve Assembly of Steam Turbine Governing System
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Topics: Flow (Dynamics), Fluctuations (Physics), High pressure (Physics), Manufacturing, Pressure, Steam turbines, Valves, Computer simulation, Turbines, Pipelines
Proceedings Papers

Effects of Flow Distortion on Clarity of Interferometer Data

Jan Lepicovsky, Martin Luxa, David Simurda
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A017, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14378
https://doi.org/10.1115/GT2020-14378
View Paper titled, Effects of Flow Distortion on Clarity of Interferometer Data
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Topics: Flow (Dynamics), Interferometers, Test facilities
Proceedings Papers

Development of Highly Efficient and Robust Ultra-Long Last Stage Blade for High Backpressure

Ondrej Novak, Marek Bobcik, Vaclav Slama, Bartolomej Rudas, Josef Kellner, Petr Mestanek, Jan Hlous, Zdenek Simka, Martin Luxa, David Simurda, Antonin Zivny, Ales Macalka, Jiri Ira
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A007, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90350
https://doi.org/10.1115/GT2019-90350
View Paper titled, Development of Highly Efficient and Robust Ultra-Long Last Stage Blade for High Backpressure
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Topics: Blades, Airfoils, Design, Flutter (Aerodynamics), Manufacturing, Numerical analysis, Pressure, Rotors, Safety, Shapes
Journal Articles

Past Developments and Current Advancements in Unsteady Pressure Measurements in Turbomachines

Jan Lepicovsky, David Simurda
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. November 2018, 140(11): 111005.
Paper No: TURBO-17-1083
https://doi.org/10.1115/1.4040419
Published Online: October 10, 2018
View Article titled, Past Developments and Current Advancements in Unsteady Pressure Measurements in Turbomachines
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Topics: Flow (Dynamics), Pressure, Probes
Journal Articles

Aerodynamic Effects of Tie-Boss in Extremely Long Turbine Blades

Tomáš Radnic, Jindřich Hála, Martin Luxa, David Šimurda, Jiří Fürst, Dan Hasnedl, Josef Kellner
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112604.
Paper No: GTP-17-1218
https://doi.org/10.1115/1.4040093
Published Online: July 31, 2018
View Article titled, Aerodynamic Effects of Tie-Boss in Extremely Long Turbine Blades
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Topics: Blades, Cascades (Fluid dynamics), Computational fluid dynamics, Flow (Dynamics), Simulation, Kinetic energy
Proceedings Papers

Wind Tunnel Measurements of Flow-Induced Vibration of a NACA0015 Airfoil Model

Petr Šidlof, Václav Vlček, Martin Štěpán, Jaromír Horáček, Martin Luxa, David Šimurda, Jan Kozánek
Proc. ASME. PVP2014, Volume 4: Fluid-Structure Interaction, V004T04A029, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28294
https://doi.org/10.1115/PVP2014-28294
View Paper titled, Wind Tunnel Measurements of Flow-Induced Vibration of a NACA0015 Airfoil Model
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Topics: Airfoils, Flow-induced vibrations, Wind tunnels, Flutter (Aerodynamics), Air flow, Flow (Dynamics), Pressure, Vibration, Aerodynamics, Degrees of freedom
Proceedings Papers

Aerodynamic Data for Two Variants of Root Turbine Blade Sections for a 54″ Turbine Rotor Blade

David Šimurda, Martin Luxa, Pavel Šafařík, Jaroslav Synáč, Bartoloměj Rudas
Proc. ASME. GT2014, Volume 2C: Turbomachinery, V02CT38A007, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25323
https://doi.org/10.1115/GT2014-25323
View Paper titled, Aerodynamic Data for Two Variants of Root Turbine Blade Sections for a 54″ Turbine Rotor Blade
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Topics: Blades, Rotors, Turbine blades, Turbines, Flow (Dynamics), Mach number, Cascades (Fluid dynamics), Design, Kinetic energy, Metals
Proceedings Papers

Optimizing the Tip Section Profiles of a Steam Turbine Blading

Rudolf Dvořák, Pavel Šafařík, Martin Luxa, David Šimurda
Proc. ASME. TBTS2013, ASME 2013 Turbine Blade Tip Symposium, V001T01A001, September 30–October 3, 2013
Publisher: American Society of Mechanical Engineers
Paper No: TBTS2013-2027
https://doi.org/10.1115/TBTS2013-2027
View Paper titled, Optimizing the Tip Section Profiles of a Steam Turbine Blading
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Topics: Steam turbines, Shock waves, Design, Cascades (Fluid dynamics), Optimization, Shapes
Proceedings Papers

Aerodynamic Investigations of Root Sections of Long Rotor Blades Applied at the Last Stages of Steam Turbines

David Šimurda, Martin Luxa, Pavel Šafařík, Jaroslav Synáč, Miroslav Šťastný
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 955-964, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68043
https://doi.org/10.1115/GT2012-68043
View Paper titled, Aerodynamic Investigations of Root Sections of Long Rotor Blades Applied at the Last Stages of Steam Turbines
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Topics: Blades, Rotors, Steam turbines, Design, Flow (Dynamics), Aerodynamics, Flow turning, Kinetic energy, Mach number, Transonic flow