ceas-propeller-rotor-noise-acc.nlr.nl - Recent Advances on Propeller/Rotor Noise Reduction

Welcome to the CEAS-ASC/NLR Workshop:

Advances on Rotor and Propeller Noise:Prediction, Mitigation, and Future Challenges

Call for Content

26^thCEAS-ASC Workshop of the Aeroacoustics Specialists’ Committee

Between 21 – 22 October, 2025, the Royal Netherlands Aerospace Centre (NLR) will organize the 26^th CEAS Workshop of the Aeroacoustics Specialists' Committee. The workshop, themed "Advances on Rotor and Propeller Noise: Prediction, Mitigation, and Future Challenges", invites contributions from both scientific and industrial communities.

The workshop will include short presentations and longer keynote talks. Workshop delegates who wish to give a presentation should submit a short abstract of maximum 300 words. Contributions are invited on the following topics:

Understanding the physics of propeller/rotor noise generation
Propeller/Rotor noise reduction techniques (both passive and active)
Noise of drones and multicopters
Noise of Urban Air Mobility (UAM) vehicles
Noise of drones and Urban Air Mobility vehicles in urban environments
Measurement techniques for propeller/rotor noise
Advanced simulation of propeller/rotor noise
Psychoacoustics and human response to rotor/propeller noise
Aeroelastic coupling and its impact on noise

Presentations will be held in a unique session of 20-30 minutes each. The exact session duration will depend on the number of speakers.

Note: Side meetings, including the ASC meeting and PULSAR noise workshop, will be held after the CEAS-ASC workshop. Additional information about the PULSAR workshop is available below.

Submit your abstract!

Mock-up for over the wing distributed propulsion tested in the NLR-AWT Wind Tunnel.

Credits: ENODISE project

Submit your abstract!

Abstracts must not exceed 300 words. If your abstract includes special formatting (such as mathematical equations or unique symbols), please use LaTeX format.

Registration

Registration fees

Early Registration: €375
Late Registration: €395

Important dates

Reduced rate hotel: 17 August 2025
Early registration deadline: 9 September 2025
Late registration deadline: 5 October 2025
Presentation submission deadline: 12 October 2025

Registration form

After submitting your registration form, you will receive an invoice for the registration fee. Your registration is confirmed once we receive your payment.

Included in the registration fee are daily refreshments (e.g., coffee, tea) and lunch throughout the workshop, as well as an invitation to the workshop dinner to be organized in Zwolle.

Travelling

When visiting an NLR location, you must present a valid ID. For non-Dutch Nationals, this is a passport. For Dutch Nationals, a passport, an ID card or driving license is required.

Venue

Royal NLR - Marknesse

Voorsterweg 31, 8316 PR Marknesse

the Netherlands

Accommodation

To help with accommodation, NLR has arranged a reduced room rate with a hotel in Zwolle, which is the nearest town to the NLR-Marknesse facility:

Bilderberg Grand Hotel Wientjes

Stationsweg 7 8011 CZ Zwolle

Telephone: +31 38 425 4251

To Make a Reservation:

Please send an email to reservation@bilderberg-grandhotelwientjes.nl.

To ensure you receive the agreed rate, please state "NLR" when making your reservation. You will then receive a direct payment link.

Special Offer

€169.00 per night for a room, including breakfast.

Note on Availability

This special rate is available for bookings confirmed by 17 August. After this date, any remaining rooms or new bookings will be based on the hotel's regular availability and pricing.

Also consider

Fletcher Hotel-Restaurant Marknesse

Voorsterweg 28

8316 PT Marknesse

Telephone: +31 (0)527-820 438

Email: info@hotelmarknesse.nl

Important Note: The hotel information is provided for convenience only. Please be aware that NLR has no commercial agreement or commitment with this hotel. As such, NLR accepts no responsibility or liability concerning your arrangements with, or the services provided by, the hotel.

Transportation from Zwolle to NLR Marknesse

Bus transportation between Zwolle and NLR-Marknesse is included in your registration fee.

Schedule

Departure from Zwolle

08:30 from Bilderberg Grand Hotel Wientjes (Stationsweg 7, 8011 CZ Zwolle).

Departure from NLR-Marknesse

17:30, returning to the Bilderberg Grand Hotel Wientjes (Stationsweg 7, 8011 CZ Zwolle).

Travel Policy

Punctuality

The bus will depart strictly at the scheduled times. Passengers are advised to arrive at least 10 minutes beforehand as delays will not be accommodated.

Route

The service is direct. No detours or unscheduled stops will be made. Passengers may only board and disembark at the specified locations.

Provider

This service is operated by TCE-Tours. Please identify a bus with this company logo at the departure location.

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Scientific Committee

Leandro de Santana (NLR, the Netherlands)
Marthijn Tuinstra (NLR, the Netherlands)
Narcisa Burtea (Comoti, Romania)
Luminita Drăgășanu (Comoti, Romania)
Alan McAlpine (University of Southampton, UK)
Pieter Sijtsma (PSA3, the Netherlands)
Jan Delfs (DLR, Germany)
Damiano Casalino (TUDelft, the Netherlands)
Christophe Schram (VKI, Belgium)
Dominique Collin (AVNeX, France)
Eugene Kors (Safran, France)

Rotor trailing edge noise reduction concept tested in the NLR-AWT Wind Tunnel

Organization Committee

Leandro de Santana (NLR, the Netherlands)
Marthijn Tuinstra (NLR, the Netherlands)
Ineke van Wijk (NLR, the Netherlands)
Narcisa Burtea (Comoti, Romania)
Luminita Drăgășanu (Comoti, Romania)
Alan McAlpine (University of Southampton, UK)

Boundary layer flow visualization on rotor blades, tested in the Royal NLR AWT wind tunnel.

PULSAR Workshop - 23 October 2025

Aviation Noise Research Needs

Following the PULSAR Noise Workshop in 2024 in Bucharest, Romania, PULSAR is organizing a workshop to review, discuss, and map out the future aviation noise research needs for Europe.

PULSAR will present its EU Airport Noise Assessment, where simulations on 10 representative EU airports have been extrapolated to all 27 EU member states. A fleet of 24 aircraft has been used to predict the future noise climate in Europe according to 4 different economic scenarios.

The 2nd part of the workshop is reserved for discussions on future Research needs on aviation noise. Priorities will be discussed for various noise topics, which will be incorporated into Roadmaps with recommendations for the European Commission.

Through such a workshop, you are given a unique opportunity to influence future research on aviation noise supported by the European Commission.

Note: The PULSAR workshop will be held at NLR-Marknesse on 23 October 2025, following the CEAS-ASC workshop (21-22 October 2025), and is free of charge. The workshop is open to all CEAS-Aeroacoustics specialists, as well as to external experts.

Draft Agenda

Introduction
Education Roadmap
PULSAR Quantitative Assesment results
- Gap Analysis results
Working Session on Technology gaps & Maturation plan per topic
- Technology Development
- Airport Noise Management/Exposure Tools & Metrics
- Impact Understanding
- High Fidelity Methods
- Experimental Techniques
Way Forward
Closure