Conference

on Modelling Fluid Flow (CMFF’22)

Radisson Blu Béke Hotel  August 30 – September 2, 2022 Budapest / Hungary


Final Programme of CMFF'22 (pdf)
Conference Proceedings of CMFF'22 (pdf) ISBN 978-963-421-881-4


Sample reference to a CMFF22 manuscript:
Vad, J., Nagy, L., and Jaberg, H., 2022, "How to Prepare a Manuscript for the CMFF'22 Conference" Proc. Conference on Modelling Fluid Flow (CMFF'22), Budapest, Hungary, pp. 1-4, CMFF22-000."
 
 
AUG 30, 2022
AUG 31, 2022
SEPT 01, 2022
SEPT 02, 2022
CMFF22 PROGRAMME OF TUESDAY, AUGUST 30th 2022 - OVERVIEW
18:00- 20:00 Registration and Welcome reception at the Department of Fluid Mechanics, Budapest University of Technology and Economics
CMFF22 PROGRAMME OF WEDNESDAY, AUGUST 31st 2022 - OVERVIEW
ROOM LOCATIONS: IN RADISSON BLU BÉKE HOTEL
"JULIET" ROOM "SHAKESPEARE" ROOM "VENICE" ROOM
09:00- 09:10 Welcome Address
09:10- 09:55 Plenary Session 1

Session Identifier: PLENARY1
Session Main Topic: PLENARY SESSION
Chairperson: Prof. Dominique Thévenin, Otto von Guericke Universität, Magdeburg, Germany

Number of presentations: 1

Invited Speaker: Prof. Viktor Scherer, Ruhr-Universität Bochum, Bochum, Germany
Simulation of reacting and moving granular assemblies of thermally thick particles by DEM/CFD, a brief overview

09:55- 10:25 BREAK BREAK BREAK
10:25- 12:25 IF1 TM1 WS1

Session Identifier: IF1
Session Main Topic: Internal and External Flow
Chairperson: Dr. Katharina Zähringer, Otto von Guericke Universität, Magdeburg, Germany

Number of presentations: 6

#3
Wim Munters, Lilla Koloszar and Philippe Planquart
Numerical simulation of a confined backward-facing step flow using hybrid turbulence models in OpenFOAM

#14
Mirko Ebert, Christin Velten, Katharina Zähringer and Christian Lessig
Efficient PIV measurements in the interior of complex, transparent geometries

#19
Maarten Vanierschot, András Szabó, Péter Nagy and György Paál
Direct numerical simulation of the wake flow of a miniature vortex generator and its interaction with a laminar boundary layer

#23
András Szabó, Péter Tamás Nagy, Maarten Vanierschot and György Paál
Stability analysis of a streaky boundary layer generated by miniature vortex generators

#37
Dennis Powalla, Rishav Saha, Stefan Hoerner and Dominique Thevenin
Fish injury assessment of a hydropower facility bypass

#46
Mirza Popovac and Helmut Kühnelt
Steady and unsteady pressure drop due to a design obstruction variation within a small-scale channel

Session Identifier: TM1
Session Main Topic: Turbomachinery
Chairperson: Prof. Johan Revstedt, Lund University, Lund, Sweden

Number of presentations: 6

#70
Tim Nitzsche, Julija Peter, Sebastian Haueisen and Paul Uwe Thamsen
Design recommendations for wastewater pumping stations – results from model tests

#67
Helmut Benigni, Stefan Hoeller, Bernhard Lechner, Jürgen Konrad and Helmut Jaberg
Insights into the flow situation of a multi-stage centrifugal pump

#9
Meng Fan, Antoine Dazin, Gérard Bois and Francesco Romano
Effect of leakage on the performance of a centrifugal pump with a vaneless diffuser

#21
Mareen Derda, Ferdinand Neumann and Paul Uwe Thamsen
Suitability of a profile with tubercles for axial pumps - Investigation using flow simulation

#63
David Beck, Yvonne Holzbauer and Paul Uwe Thamsen
Development of sewage pumps with numerical and experimental support

#49
Annemarie Lehr, Gábor Janiga, Andreas Seidel-Morgenstern and Dominique Thévenin
Numerical study on the solid-liquid residence time distribution in a counter-current screw extractor

Session Identifier: WS1 - WORKSHOP
Title: "Workshop on DEM-CFD"
WS Leader: Prof. Viktor Scherer, Ruhr-Universität Bochum, Bochum, Germany
WS Co-organizer: Prof. Dominique Thévenin, Otto von Guericke Universität, Magdeburg, Germany

The combination of Computational Fluid Dynamics (CFD) with the Discrete Element Method (DEM) provides novel opportunities for more accurate simulations of particulate flows involving large particles. This is particularly true in process and energy engineering. However, many challenges remain from the methodological point of view as well as regarding requirements in terms of computing time and memory. Specific extensions are necessary for flows involving chemical reactions, phase changes, non-newtonian properties, or compressibility effects, to cite a few. This workshop will document recent advances and showcase challenging applications of DEM-CFD.

Number of presentations: 5

#117
Josef Tausendschön, Mohammadsadegh Salehi and Stefan Radl
Machine learning-based closure development for modeling of cohesive gas-particle flows

#122
Christoph Spijker and Harald Raupenstrauch
CFD-DEM modelling of shaft furnaces, using the volume fraction smoother approach

#118
Enric Illana Mahiques, Max Brömmer, Siegmar Wirtz and Viktor Scherer
Local flow resolution with the blocked-off method in DEM-CFD: Gaseous fuel jet dispersion and combustion in a particle assembly

#116
Berend van Wachem, Victor Chéron and Fabien Evrard
Discrete element modelling of non-spherical particles in turbulent gas-solid flows

#130
Babak Aghel, Falah Alobaid, Christoph Graf and Bernd Epple
Recent advances in CFD-DEM simulation of fluidized beds

12:25- 13:55 LUNCH LUNCH LUNCH
13:55- 14:40 Plenary Session 2

Session Identifier: PLENARY2
Session Main Topic: PLENARY SESSION
Chairperson: Prof. Dominique Thévenin, Otto von Guericke Universität, Magdeburg, Germany

Number of presentations: 1

Invited Speaker: Prof. Marie Oshima, The University of Tokyo, Tokyo, Japan
Past, present, and new challenges for computational hemodynamics of cerebral circulation

14:40- 15:10 BREAK BREAK BREAK
15:10- 17:30 BU CF WS2

Session Identifier: BU
Session Main Topic: Cavitation and bubbles
Chairperson: Dr. Christiane Lechner, Technische Universität Wien, Vienna, Austria
Co-Chairperson: Dr. Max Koch, Georg-August Universität Göttingen, Göttingen, Germany

Number of presentations: 7

#91
Christiane Lechner, Max Koch, Werner Lauterborn and Robert Mettin
Expansion and collapse of single cavitation bubbles right at a solid boundary

#95
Max Koch, Christiane Lechner, Werner Lauterborn and Robert Mettin
Mushroom shaped bubbles and the jet of 1000 m/s

#121
Csanád Kalmár and Ferenc Hegedűs
Effect of different chemical mechanisms in sonochemical modelling

#34
Conrad Müller, Yingjie Chang, Péter Kováts, Dominique Thévenin and Katharina Zähringer
Flow around bubbles: 4D measurement concept with high-speed tomographic system

#61
Niklas Hidman, Henrik Ström, Srdjan Sasic and Gaetano Sardina
Resolving sub-kolmogorov bubble dynamics in turbulent flows: Formulation of a multiscale numerical framework

#32
Peter Kovats, Katharina Zähringer, Haris Khan, Roland Rzehak and Dominique Thévenin
Fluid dynamics in a countercurrent bubble column: Experiments and simulations

#17
Youngkuk Yoon and Seung Jin Song
Effects of tip leakage vortex cavitation on flow field under cavitation instability

Session Identifier: CF
Session Main Topic: Complex flows
Chairperson: Dr. Mohammadsadegh Salehi, Graz University of Technology, Graz, Austria

Number of presentations: 7

#4
Lee Mortimer and Michael Fairweather
Effect of shear rate on polymer-induced flocculation for behavioural modification techniques

#83
Michael Mansour, Conrad Müller, Dominique Thévenin and Katharina Zähringer
Investigations on the separation of two immiscible liquids in helical pipes with different conditions and dimensions

#78
Kálmán Kustány, Gergely Hajgató, Bendegúz Dezső Bak and Tamás Kalmár-Nagy
Classification of percolation clusters with artificial neural networks

#35
Shuo Liu, Hui Wang, Annie-Claude Bayeul-Lainé and Olivier Coutier-Delgosha
Direct numerical simulation of shallow water breaking waves generated by wave plate

#11
Bao Liu, Maarten Vanierschot and Frank Buysschaert
Comparison study of the k-kl-ω and γ-Reθ transition model in the open water performance prediction of a rim-driven thruster

#73
Jessica Köpplin and Dominique Thévenin
Optimization of the pressure increase of an adapted Pitot-tube jet-pump for the separation of oil-water mixtures

#98
Balázs Havasi-Tóth
Improving the incompressibility condition of the explicit SPH method using the control theory

Session Identifier: WS2 - WORKSHOP
Title: "Workshop on biomedical flows"
WS Leader: Prof. Gábor Janiga, Otto von Guericke Universität, Magdeburg, Germany
WS Co-organizers: Prof. György Paál, Budapest University of Technology and Economics, Budapest, Hungary
Prof. Marie Oshima, The University of Tokyo, Tokyo, Japan

Numerical simulations are widely used to investigate biomedical problems including mainly but not exclusively blood flows. The quality of the obtained results strongly depends on the boundary conditions, as well as on the applied models. Therefore, their role should be carefully studied and the role of generic versus patient-specific conditions clarified. The present workshop aims at discussing such aspects and assessing the potential of numerical blood flow simulations for different problems, including intracranial aneurysms (IA) or arteriovenous malformations (AVM).

Number of presentations: 7

#66
Márton Bence Németh, Benjamin Csippa, Zsuzsanna Mihály, Gyögy Paál and Péter Sótonyi
Boundary condition options for Carotid bifurcation analysis using Doppler velocity measurements

#72
Péter Friedrich, Benjamin Csippa, György Paál and István Szikora
Initiation of bifurcation aneurysms: a pilot study

#45
Jana Korte, Mariya Pravdivtseva, Laurel Marsh, Franziska Gaidzik, Naomi Larsen, Gabor Janiga and Philipp Berg
Can black blood MRI predict hemodynamics in intracranial aneurysms? - An analysis of in-vitro signal intensity and CFD

#
Tamás István Józsa and Stephen John Payne
Cerebral perfusion simulation of a virtual patient cohort based on clinical data integration

#55
Dániel Gyürki, István Szikora and György Paál
Calculating particle residence times in vessel geometries with aneurysm

#119
Janneck Stahl, Sylvia Saalfeld, Laura Stone McGuire, Denise Brunozzi, Ali Alaraj, David Hasan and Philipp Berg
Multimodal hemodynamic evaluation of vessel wall enhanced cerebral draining veins for the assessment of arteriovenous malformations

#58
Richárd Wéber, Dániel Gyürki and György Paál
One-dimensional modelling of the artery network using the method of characteristics with a lumped heart

19:30 Gala Dinner: Robinson Restaurant
CMFF22 PROGRAMME OF THURSDAY, SEPTEMBER 1st 2022 - OVERVIEW
ROOM LOCATIONS: IN RADISSON BLU BÉKE HOTEL
"JULIET" ROOM "SHAKESPEARE" ROOM "VENICE" ROOM
09:00- 09:10 Technical information
09:10- 09:55 Plenary Session 3

Session Identifier: PLENARY3
Session Main Topic: PLENARY SESSION
Chairperson: Prof. Dominique Thévenin, Otto von Guericke Universität, Magdeburg, Germany

Number of presentations: 1

Invited Speaker: Prof. Manfred Kaltenbacher, Graz University of Technology, Graz, Austria
State of art and challenges in computational aeroacoustics

09:55- 10:25 BREAK BREAK BREAK
10:25- 12:25 TU TM2 ET

Session Identifier: TU
Session Main Topic: Turbulent flow
Chairperson: Prof. Michael Fairweather, University of Leeds, Leeds, United Kingdom

Number of presentations: 6

#20
Lukas Unglehrt, Johannes Kreuzinger and Michael Manhart
A wall-model for high-fidelity large-eddy simulation

#62
Kenan Cengiz, Sebastian Kurth, Lars Wein and Joerg R. Seume
Use of high-order curved elements for direct and large eddy simulation of flow over rough surfaces

#15
Marten Klein, Juan Alí Medina Méndez and Heiko Schmidt
Modeling electrohydrodynamically-enhanced drag in channel and pipe flows using one-dimensional turbulence

#96
Tommy Starick, Masoomeh Behrang, David Lignell, Heiko Schmidt and Alan Kerstein
Turbulent mixing simulation using the Hierarchical Parcel Swapping (HiPS) model

#68
Bendegúz Dezső Bak, Róbert Rochlitz, Tamás Kalmár-Nagy and Gergely Kristóf
Mechanistic turbulence: Targeted energy transfer in a multi-degree-of-freedom nonlinear oscillator

#6
Lena Caban, Agnieszka Wawrzak and Artur Tyliszczak
Approximate deconvolution model for two-dimensional decaying homogeneous isotropic turbulence using high order discretization schemes

Session Identifier: TM2
Session Main Topic: Turbomachinery
Chairperson: Prof. Helmut Benigni, Graz University of Technology, Graz, Austria

Number of presentations: 6

#40
Dominik Tóth and János Vad
Industry 4.0 perspectives of axial and radial fans in smart industrial ventilation: conceptual case studies

#7
Lorenzo Tieghi, Giovanni Delibra, Alessandro Corsini, Francesco Aldo Tucci and Johan van der Spuy
Flow control in air cooled condensers using leading edge serrations

#28
Gábor Zipszer, Szilárd Varró, Bence Darázs, Mátyás Gyöngyösi and Ákos Horváth
Artificial intelligent enhanced virtual blade model

#94
Bálint Lendvai and Tamás Benedek
Study on the effect of sudden duct diameter change on the performance of an axial flow fan

#48
Péter Ferenczy, Esztella Balla, Tamás Benedek, Gábor Daku, Bálint Kocsis, Antal Kónya and János Vad
Development of a radial flow fan family for contaminated gases of relatively high flow rate

#10
Chan Lee, Hyun Gwon Kil, Eui Jong Noh, Sang Ho Yang
Performance prediction and CFD analysis of a variable-pitch axial flow fan

Session Identifier: ET
Session Main Topic: Energy Transfer
Chairperson: Prof. Maarten Vanierschot, Katholieke Universiteit Leuven, Leuven, Belgium

Number of presentations: 6

#82
Xu Meng, Le Xiang, Kaifu Xu, Bo Li, Huan Han, Shuhong Liu and Zhigang Zuo
Study of the influence of thermodynamic effects on Venturi cavitation flow

#87
Márton Kerényi, István Goricsán and Thomas Pitour
1D thermal modelling of a wheel bearing to investigate energy losses

#69
Sumit Kumar Mehta, Sukumar Pati and Laszlo Baranyi
Heat transfer and fluid flow analysis for electroosmotic flow of Carreau fluid through a wavy microchannel considering steric effect

#57
Blaž Kamenik, Matjaž Hriberšek and Matej Zadravec
Numerical modelling of ice deposition in a lyophilizer condenser

#26
Robert Szasz, Stefan Ivanell and Johan Revstedt
A novel model for glaze ice accretion

#113
Agnieszka Wawrzak, Robert Kantoch and Artur Tyliszczak
LES of a non-premixed hydrogen flame stabilized by wavy-wall bluff-body

12:25- 13:55 LUNCH LUNCH LUNCH
13:55- 14:40 Plenary Session 4

Session Identifier: PLENARY4
Session Main Topic: PLENARY SESSION
Chairperson: Prof. Dominique Thévenin, Otto von Guericke Universität, Magdeburg, Germany

Number of presentations: 1

Invited Speaker: Prof. Cameron Tropea, Technische Universitaet Darmstadt, Darmstadt, Germany
Optical measurements of drops in flows

14:40- 15:10 BREAK BREAK BREAK
15:10- 16:50 WS3 WS4 EV

Session Identifier: WS3 - WORKSHOP
Title: "Challenges in valve modelling & analysis"
WS Leader: Prof. Csaba Hős, Budapest University of Technology and Economics, Budapest, Hungary

Valves are essential elements of every hydraulic system, yet their dynamic behavior is often overlooked, especially in the case of mass applications, such as e.g. the hundreds or thousands of safety valves in a chemical plant or oil refinery. Computational Fluid Dynamics (CFD) modeling provides novel opportunities for more accurate simulations, yet dynamic simulations, especially with non-ideal gas behavior or multiphase flow still require inefficient amount of computational effort. Thus, reduced order modeling is viable, especially when valve-pipeline interaction is addressed. The workshop aims at sharing recent findings of research groups in this field.

Number of presentations: 4

#
Csaba Hős
Challenges in valve modelling & analysis: State of the art

#105
Gergely Keszthelyi, Jürgen Schmidt and Jens Denecke
Effects of valve characteristic and fluid force on valve stability

#109
Goran Pavic and Fabien Chevillotte
Dynamic pressure propagation in pipes: modelling and analysis by measurement

#114
Csaba Hos and Ghaith Burhani
On the effect of mass fraction of frozen mixture flow on the dynamic performance of a direct spring operated safety valve

Session Identifier: WS4 - WORKSHOP
Title: "Industry 4.0 in smart ventilation: questions and challenges"
WS Leader: Prof. János Vad, Budapest University of Technology and Economics, Budapest, Hungary
WS Co-organizer: Prof. Alessandro Corsini, Sapienza Università di Roma, Rome, Italy

The recent view represented by Industry 4.0 enables substantially new features in industrial air technology as well as in industrial heating, ventilation, and air conditioning. Such new features expand the capabilities of traditional air technical systems – even if such traditional systems are highly controlled systems. Some examples for smart fans, and for smart ventilation systems incorporating them, meeting the Industry 4.0 concept, are as follows: multifunctional monitoring, control and rationalization of aerodynamics performance and power consumption; prediction of aerodynamics degradation due to blade erosion or contamination; vibration self-diagnostics for forecasting bearing fatigue and rotor imbalance due to blade wear or deposit, serving as an aid to demand-based fan maintenance.

Session Identifier: EV
Session Main Topic: Environmental Flow
Chairperson: Dr. Miklós Balogh, Budapest University of Technology and Economics, Budapest, Hungary

Number of presentations: 5

#44
Patricia Vanky, Andreas Mark, Marie Haeger-Eugensson, Joaquim Tarraso, Marco Adelfio, Angela Sasic Kalagasidis and Gaetano Sardina
Validation of an immersed boundary code for urban flows

#56
Jose I. Rojas, Santiago Arias, Rathan B. Athota and Adeline Montlaur
Comparison of OpenFOAM turbulence models for numerical simulation of thermally-driven winds

#84
Bálint Papp and Gergely Kristóf
Building patterns favorable for air quality: A parameter study using LES

#90
Jose I. Rojas, Santiago Arias and Adeline Montlaur
Perspectives on OpenFOAM numerical simulations of slope winds on Mars

#89
Tamás Weidinger, Petra Fritz, Arun Gandhi, Abderrahmane Mendyl and Ágoston Vilmos Tordai
Surface layer’s sound speed profiles: climatological analysis and application for the CNOSSOS-EU noise model

CMFF22 PROGRAMME OF FRIDAY, SEPTEMBER 2nd 2022 - OVERVIEW
ROOM LOCATIONS: IN RADISSON BLU BÉKE HOTEL
"JULIET" ROOM "SHAKESPEARE" ROOM "VENICE" ROOM
09:00- 11:00 DPL TM3 WS5

Session Identifier: DPL
Session Main Topic: Droplets and Particle-Laden Flows
Chairperson: Dr. Balázs Havasi-Tóth, Budapest University of Technology and Economics, Budapest, Hungary

Number of presentations: 6

#33
Hui Wang, Shuo Liu, Annie-Claude Bayeul-Lainé and Olivier Coutier-Delgosha
Dynamics of high-speed drop impact on deep liquid pool

#110
Drijit Kumar Deka, Sukumar Pati and László Baranyi
Droplet spreading behaviour over a solid substrate mediated by surface wettability and interfacial tension

#5
David Rupp, Lee Mortimer and Michael Fairweather
Analysis of the repeat collision effect in simulated particle-laden flows with and without agglomeration

#92
Johan Revstedt, Dragana Arlov and Fredrik Innings
Effects of large particles in pipe flow at low and moderate Reynolds numbers

#27
Bisrat Wolde, Lee Mortimer and Michael Fairweather
Effects of Stokes number on particle deposition in particle-laden turbulent pipe flows

#
Jordi Pallares, Alexandre Fabregat, Salvatore Cito and Cristian Marchioli
CFD Challenge: a benchmark study of violent expiratory events

Session Identifier: TM3
Session Main Topic: Turbomachinery
Chairperson: Dr. Esztella Balla, Budapest University of Technology and Economics, Budapest, Hungary

Number of presentations: 5

#47
Lukas Sandmaier, Helmut Benigni and Peter Meusburger
Transient 3D CFD simulation of a Pelton turbine – A state-of-the-art approach for Pelton development and optimisation

#2
Florian Miralles, Bastien Sauvage, Stephen Wornom, Bruno Koobus and Alain Dervieux
Application of hybrid RANS/VMS modeling to rotating machines

#79
Karla Ruiz Hussmann, Pierre-Luc Delafin, Cyrille Bonamy, Yves Delannoy, Dominique Thévenin and Stefan Hoerner
A methodology for the blade shape optimization of a vertical axis tidal turbine under constraints

#100
Alin Bosioc, Raul Szakal, Adrian Stuparu and Romeo Susan-Resiga
Numerical analysis of the flow by using a free runner downstream the Francis turbine

#54
Islam Hashem, Emeel Kerikous, Stefan Hoerner and Dominique Thévenin
Performance investigation of a Savonius wind turbine with unconventional blade designs inspired by sand eels

Session Identifier: WS5 - WORKSHOP
Title: "Coupling techniques in multiscale atmospheric models: Microphysics, local scale simulations, PBL structure"
WS Leader: Dr. Tamás Weidinger, Eötvös Loránd University, Budapest, Hungary

The recent view represented by coupling techniques in multiscale atmospheric models in field of meteorology-climatology and fluid dynamics. Scale-dependent atmospheric processes - the range of phenomena directly described and parameterized by numerical models - evolve with the available spatial and temporal resolution. Different climate, weather, and fluid dynamics models use several common methods and solutions. These include constructing initial and boundary conditions and assimilating the results to measurements or larger-scale model results, i.e., the issue of model initialization. There is a common interest in parameterization sub-grid-scale processes, be it in the description of convection, cloud formation, precipitation, or scale-dependent turbulent exchange processes. Parameterization of turbulence — modeling of the viscous sublayer, the constant-flux near-surface layer, and the planetary boundary layer — also connects modelers in engineering and meteorology/climatology. Model couplings and model embedding raise the question of one-way and two-way interactions between scales. Another critical issue is the modeling of scale-dependent pollutant dispersion and the description of urban effects.

Number of presentations: 4

#
István Geresdi
Can we have a better simulation of fog or haze formation in urban environment?

#
Márton Koren and Gergely Kristóf
Wind-shear coupling method to implicate large turbulent structures in a building-scale large eddy simulation

#
Miklós Balogh, Árpád Farkas, Tamás Weidinger and Imre Salma
Dispersion simulation of firework-related aerosols

#123
Árpád Bordás, András Zénó Gyöngyösi and Tamás Weidinger
Examination of Saharan boundary layer by a single-column and 3D WRF model - a case study for Fennec campaign

11:00- 11:30 BREAK BREAK BREAK
11:30- 13:00 AE SV WS6

Session Identifier: AE
Session Main Topic: Aeronautics
Chairperson: Dr. Bendegúz Bak, Budapest University of Technology and Economics, Budapest, Hungary

Number of presentations: 3

#74
Ábel Olgyay, Béla Takarics, Bence Körösparti, Bálint Vanek, János Lelkes and Csaba Horváth
Aeroservoelasticity investigation with panel method

#76
János Lelkes, Dávid András Horváth and Tamás Kalmár-Nagy
Identification of data-driven aerodynamic models for reduced-order aeroelastic simulations

#29
Gábor Zipszer, Bence Darázs, Ákos Horváth, Dávid Toma, Dániel Laki, Mátyás Gyöngyösi, Jenő Miklós Suda, Márton Koren and Balázs Farkas
CFD assessment of an ultralight aircraft including in-flight test data comparison

Session Identifier: SV
Session Main Topic: Sound and Vibration
Chairperson: Dr. Tamás Benedek, Budapest University of Technology and Economics, Budapest, Hungary

Number of presentations: 4

#18
Dániel Dorogi, Efstathios Konstantinidis and László Baranyi
Numerical study of vortex-induced vibration of a circular cylinder subject to oscillatory flow at high Keulegan-Carpenter numbers

#111
Magdalena Stanik, Dominika Jaskóła and Dominik Deda
Identification of low frequency fluctuation in centrifugal fan

#30
Ádám Romasz, Kristóf Tokaji and Csaba Horváth
The investigation of counter-rotating turbomachinery broadband noise sources as a function of rotational speed

#86
Miklós Balogh, Gábor Koscsó, Bálint Kocsis, Csaba Horváth and Zoltán Bozóki
Aeroacoustic noise reduction of open photoacoustic cells supported by experiments and CFD simulations

Session Identifier: WS6 - WORKSHOP
Title: "Coupling techniques in multiscale atmospheric models: Numerical weather and climate modelling: scaling, coupling, parameterizations"
WS Leader: Dr. Gergely Kristóf, Budapest University of Technology and Economics, Budapest, Hungary

The recent view represented by coupling techniques in multiscale atmospheric models in field of meteorology-climatology and fluid dynamics. Scale-dependent atmospheric processes - the range of phenomena directly described and parameterized by numerical models - evolve with the available spatial and temporal resolution. Different climate, weather, and fluid dynamics models use several common methods and solutions. These include constructing initial and boundary conditions and assimilating the results to measurements or larger-scale model results, i.e., the issue of model initialization. There is a common interest in parameterization sub-grid-scale processes, be it in the description of convection, cloud formation, precipitation, or scale-dependent turbulent exchange processes. Parameterization of turbulence — modeling of the viscous sublayer, the constant-flux near-surface layer, and the planetary boundary layer — also connects modelers in engineering and meteorology/climatology. Model couplings and model embedding raise the question of one-way and two-way interactions between scales. Another critical issue is the modeling of scale-dependent pollutant dispersion and the description of urban effects.

Number of presentations: 3

#
Timea Kalmár, Ildikó Pieczka and Rita Pongrác
Testing convective parameterzation schemes in RegCM over the Carpathian region

#
Gabriella Allaga-Zsebeházi
Challenge in providing detailed information on future climate change in cities

#124
Balázs Szintai and Kristóf Szanyi
High resolution experiments with the AROME numerical weather prediction model over Hungary

13:00 CLOSING PLENARY