AKUSTIK GRP BCKUP

Contacts

Eman Bagheri, M. Sc. Phone number: +49 9131 85-28291 Website:
Florian Wachter, M. Sc. Phone number: +49 9131 85-28272 Website:
Jörg Riedel, M. Sc. Phone number: +49 9131 85-29505 Website:
Andreas Renz, M. Sc.

Main research areas

  • Computational Fluid Dynamics (CFD) Simulation
  • Computational Aeroacoustics (CAA) Simulation
  • Solver Development in OpenFOAM
  • Fluid-Structure-Acoustic Interaction
  • Discrete Adjoint Optimization
  • Machine Learning Algorithm
  • Multi-Phase Flow
  • Structure Vibration and Modal Analysis

Methods and techniques

  • Finite Volume and Finite Element Methods
  • Pertubated Convective Wave Equations
  • FW-H Methods
  • HPC Computing
  • LES and DNS
  • OpenFoam, StarCCM+, Ansys, SU2, FASTEST3D
  • Similarly, CFTurbo
  • Psychoacoustic Analysis Program
  • Design Tool for Axial and Radial Impeller

Recent research topics

Selected former research

  • Virtual Vehicle: Simulation of Low-Frequency Vehicle Interior Noise with Wind Excitation
  • Virtual Vehicle: Aeroacoustic Simulation of Rotating Systems in HVAC Systems
  • Bayern-E-home – Optimization and Noise Reduction for Vertical Wind Turbine
  • EU-FET- EUNISION: Extensive UNIfied-domain SimulatiON of the human voice
  • Bavarian Research Alliance: Noise Reduction of Technical Facilities
  • EDA-CAPEM: Conformal Array Performance Estimation Modelling
  • INIFAU: Multiphysical Simulation Model for External Noise Prediction in the Early Development Phase of a Car

Selected Media 

Simulation of pulsating heat pipes with heat transfer and phase-change using developed solver in OpenFOAM

PCWE source term in rotating systems

Acoustic Wave propagation in rotating systems using the PCWE analogy

Acoustic Wave propagation in a HVAC unit using the PCWE analogy

Vibro-acoustic wave propagation of a cylinder head model simulated in CFS++

PIV measurement of turbulent flow in an optimized curved pipe


Contacts
Felix Czwielong, M. Sc. Phone number: +49 9131 85-28272 Website:
Christoph Heigl (Näger), M. Sc. Phone number: +49 9131 85-28291 Website:
Andreas Renz, M. Sc.
Lukas Saur, M. Sc. Phone number: +49 9131 85-29505 Website:
Jörg Riedel, M. Sc. Phone number: +49 9131 85-29505 Website:

Main research areas

  • Acoustic Test Facilities
  • Hybrid Acoustic PIV
  • Vibro-Acoustic Measurements
  • Microphone Arrays
  • Flow-Acoustic Correlation
  • Flow Visualization
  • Inflight Acoustic Sensors
  • Active Turbulence Grid

Methods and techniques

  • LDA
  • PIV
  • Hot Wire Measurements
  • Laser Scanning Vibrometer
  • Multi-Pressure Systems
  • Kiel-probe Array
  • Smoke Generator
  • Telemetric System
  • Matches Index Refraction Technique
  • Aeroacoustic and Flow Test Facilities
  • Large Wind Tunnel
  • Water Tunnel

Recent research topics

Selected former research

  • Bayern-Green Factory – Design of Low Noise Production Facilities
  • Bayern-E-home – Optimization and Noise Reduction for Vertical Wind Turbines
  • EU FP7 – The Development and Verification of a Novel Modular Air Cooled Condenser for Enhanced Concentrated Solar Power Generation
  • Bavarian Research Alliance: Noise Reduction of Technical Facilities

Selected Media

PTV measurement of turbulent axisymmetric boundary layer flow

PIV measurement of turbulent flow within a curved pipe optimized for pressure loss reduction

Contacts

Felix Czwielong, M. Sc. Phone number: +49 9131 85-28272 Website:
Andreas Renz, M. Sc.
Lukas Saur, M. Sc. Phone number: +49 9131 85-29505 Website:
Jörg Riedel, M. Sc. Phone number: +49 9131 85-29505 Website:

Main research areas

  • Acoustic Test Facilities for Fans
  • Fan Acoustics
  • Turbocharger
  • Active Turbulence Grid
  • Fans by Different Installation Conditions
  • Optimization
  • Multi-Port Measurements
  • Scroll Compressor
  • Wind Turbines
  • Serrated Leading Edge Fan Design
  • Friction Ventilator

Methods and techniques

Recent research topics

Selected former research

  • BoschRexroth: Sound emission of low-pressure axial fans under distorted inflow conditions
  • GardnerDenver: Flow and Flow-Induced Sound Radiation of Side Channel Blowers
  • Bayern-E-home – Optimization and Noise Reduction for Vertical Wind Turbines
  • BFS: Aeroacoustic Sound Generation in Fans and their Sound Radiation
  • INIFAU: Sound Radiation of the Exhaust Gas Turbocharger as a Function of the Compressor and Turbine Inflow

Selected Media

 

LES of an axial fan with and without leading edge serrations

Contacts

Felix Czwielong, M. Sc. Phone number: +49 9131 85-28272 Website:
Andreas Renz, M. Sc.
Lukas Saur, M. Sc. Phone number: +49 9131 85-29505 Website:
Eman Bagheri, M. Sc. Phone number: +49 9131 85-28291 Website:

Main research areas

  • Pulsating Heat Pumps
  • Heat Exchanger and Fan Installations
  • Psychoacoustics
  • HCAC Systems
  • Motor Cooling Systems

Methods and techniques

  • CFD /CAA
  • Multi-Pressure Systems
  • Telemetric System
  • Aeroacoustic and Flow Test Facilities
  • Multi-Phase Simulation

Recent research topics

Selected former research

  • INIFAU: Aeroacoustic Noise Prediction of Automotive HVAC Systems
  • INIFAU: Development of a Methodology for the Design of Vehicle Air Conditioning Systems under Consideration of Psychoacoustic
  • BFS: Noise reduction of the ventilation systems of low-energy/passive houses
  • BFS : Noise reduction of the cooling equipment of technical systems and devices
  • Brose: Acoustics of Motor Cooling Fans

Selected Media

Contacts

Felix Czwielong, M. Sc. Phone number: +49 9131 85-28272 Website:
Jörg Riedel, M. Sc. Phone number: +49 9131 85-29505 Website:

Main research areas

  • Acoustic Metamaterials
  • MPP
  • Resonator
  • Porous Materials
  • Absorber in Flow Systems
  • Kevlar Foils

Methods and techniques

  • MPP
  • Hot Wire Measurements
  • Multi-Port Test Rigs
  • Multi-Pressure Systems

Recent research topics

  • AiF Research Project (20997 N/1): Sound Measurement of Axial Fans in Pipes
  • BMBF: AKUMET3D: Acoustical Metamaterials for Sound Absorption in Pipes

Selected former research

  • Bayern-Green Factory – Design of Low Noise Production Facilities
  • AIF/ZIM: Turbo Resonator for Compressors
  • FLT: Application of Kevlar foils for minimizing the influence of fluid mechanical pressures during acoustic measurements with slot tube probes on fans
  • Schmalz: Development of a silencer for vacuum technology components

Contacts

apl. Prof. Dr.-Ing. habil. Stefan Becker Phone number: +49 9131 85-29579 Website:

Main research areas

  • Fluid-Structure-Acoustic Interaction
  • Vibro-Acoustic Measurements
  • Inflight Acoustic Sensors
  • Low Noise Drone Flight
  • Active Flow Control
  • Acoustics of E-Bikes

Methods and techniques

Recent research topics

  • AkESoFlug: Energy-efficient, acoustically self-optimized drive technology for autonomous aviation

Selected former research

  • BFS – Sound design for Passenger Car Interiors
  • Virtual Vehicle: Simulation of Low-Frequency Vehicle Interior Noise with Wind Excitation
  • INIFAU: Multiphysical Simulation Model for External Noise Prediction in the Early Development Phase of a Car
  • DFG: Inflight Transition Measurements on an Airplane Wing using LDA
  • VW: Active Flow Control on a 1:4 Car Model

Selected Media

LES of flow around side-view mirror

Aero-Vibro-Acoustic Simulation of the Flow Induced Interior Noise in a Simplified Car

 

Vibro-acoustic wave propagation of a cylinder head model simulated in CFS++

Contacts

Christoph Heigl (Näger), M. Sc. Phone number: +49 9131 85-28291 Website:
Jörg Riedel, M. Sc. Phone number: +49 9131 85-29505 Website:

Main research areas

Methods and techniques

  • PIV
  • Laser Scanning Vibrometer
  • Multi-Pressure Systems
  • Laser Scanning Vibrometer
  • Artificial Vocal Folds

Recent research topics

Selected former research

  • DFG: The flow-structure interaction and the induced sound on a realistic physical vocal fold model – active model
  • EU-FET- EUNISION: Extensive UNIfied-domain SimulatiON of the human voice
  • University Hospital: Investigation of the influence of an internal fixator on stiffness in the pelvic ring and sacral fractures
  • University Hospital: CFD investigations of medical cement on a bone screw

Selected Media

PIV measurement of a modulating jet induced by synthetic vocal folds

 

Laser-scanning vibrometry of synthetic vocal folds