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Increased Safety and robust certification for ditching of aircrafts and helicopters

Total Cost €


EC-Contrib. €






Project "SARAH" data sheet

The following table provides information about the project.


Organization address
postcode: 21129

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website
 Total cost 6˙636˙395 €
 EC max contribution 6˙636˙393 € (100%)
 Programme 1. H2020-EU.3.4. (SOCIETAL CHALLENGES - Smart, Green And Integrated Transport)
 Code Call H2020-MG-2016-SingleStage-INEA
 Funding Scheme RIA
 Starting year 2016
 Duration (year-month-day) from 2016-10-01   to  2020-03-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    IBK-INNOVATION GMBH & CO. KG DE (HAMBURG) coordinator 560˙968.00
2    CONSIGLIO NAZIONALE DELLE RICERCHE IT (ROMA) participant 1˙280˙000.00
3    ECOLE CENTRALE DE NANTES FR (NANTES CEDEX 3) participant 781˙875.00
5    DASSAULT AVIATION FR (PARIS) participant 702˙048.00
8    NEXTFLOW SOFTWARE FR (NANTES) participant 453˙053.00
9    AIRBUS DEFENCE AND SPACE SA ES (MADRID) participant 412˙500.00
10    AIRBUS HELICOPTERS FR (MARIGNANE) participant 378˙750.00
11    EASN Technology Innovation Services BVBA BE (BUDINGEN) participant 172˙500.00
12    AIRBUS OPERATIONS GMBH DE (HAMBURG) participant 105˙000.00
13    HYDROCEAN FR (NANTES CEDEX 3) participant 0.00


 Project objective

SARAH is concerned with establishing novel holistic, simulation-based approaches to the analysis of aircraft ditching. It is build up from a consortium of experts from OEM industries, experienced suppliers of simulation technologies, established research institutions and representatives of the certification authorities. Results of SARAH are expected to support a performance-based regulation and certification for next generation aircraft and helicopter and to enhance the safe air transport as well as to foster the trustworthiness of aviation services. Aircrafts and helicopters often travel above water and thus have to prove a safe landing under emergency conditions. The specific challenge is to minimize the risk of injury to passengers and to enable safe evacuation. Accordingly, the motion of the aircraft/helicopter along with the forces acting on the structure are studied for controlled water impact during the design phase of an aircraft. Ditching has close links with crash simulation, but also distinctive features. Examples refer to hydrodynamic slamming loads on airborne vehicles and complex hydromechanics (partially at very large forward speeds) as well as the interaction of multi-phase fluid dynamics (involving air, water, and vapor phases) and structure mechanics. Design for ditching involves more than the analysis of loads and subsequent strengthening of the structure. It often requires adjustment campaigns for the handling of the vehicle during approach and the identification of favorable approach/flight-path conditions in line with the pilots flying capabilities to minimize the remaining kinetic energy of the vehicle to be transferred into the water. In conclusion, a pressing need for more advanced studies to support the development of next-generation, generalized simulation-based ditching-analysis practices is acknowledged by all stakeholders. The public interest in safety makes this proposal an ideal candidate for a European research proposal.


List of deliverables.
Project Website and Communication Pack Other 2019-11-20 12:03:15
Dissemination Action Plan Documents, reports 2019-11-20 12:03:15
Progress report: Report presenting all work performed in the first 12 months of WP2 Documents, reports 2019-11-20 12:03:15
Mid-term report on the dissemination and communication of results Documents, reports 2019-11-20 12:03:15
Definition of the conditions for guided aircraft ditching tests Documents, reports 2019-11-20 12:03:15
Periodic Progress Report including 1st cost statement Documents, reports 2019-11-20 12:03:15

Take a look to the deliverables list in detail:  detailed list of SARAH deliverables.


year authors and title journal last update
List of publications.
2017 Paul Adrian Lohstöter
Einsatz viskoser CFD zur Anpassung eines Streifenverfahrens für deformierte Flugzeugsektionen zur gekoppelten Fluid-Struktur-Interaktion
published pages: , ISSN: , DOI:
Hamburg University of Technology, Institute for Fluid Dynamics and Ship Theory 2020-04-04
2019 L. Chiron, M. de Leffe, G. Oger, D. Le Touzé
Fast and accurate SPH modelling of 3D complex wall boundaries in viscous and non viscous flows
published pages: 93-111, ISSN: 0010-4655, DOI: 10.1016/j.cpc.2018.08.001
Computer Physics Communications 234 2020-04-04
2018 Grell, J. (Prof. Rung)
Untersuchung der Notwasserlandung von Flugzeugen in Wellen
published pages: , ISSN: , DOI:
Hamburg University of Technology, Institute for Fluid Dynamics and Ship Theory 2020-04-04
2018 Iafrati Alessandro
Fluid-structure interaction during the water impact at high horizontal velocity of a thick plate: experimental data and simplified modelling
published pages: 9, ISSN: , DOI: 10.5281/zenodo.3732649
Proceedings of the 8th International Conference on HYDROELASTICITY IN MARINE TECHNOLOGY Yearly 2020-04-04
2017 Viana Lozoya, J.T.; Pastor García, G.; Climent Máñez, H.
Flexible Structures Response To Ditching Loads
published pages: 24, ISSN: , DOI: 10.5281/zenodo.1287826
Proceedings of the ASIDIC 2017: Aerospace Structural Impact Dynamics International Conference Yearly 2020-04-04
2019 A. Iafrati, S. Grizzi
Cavitation and ventilation modalities during ditching
published pages: 52101, ISSN: 1070-6631, DOI: 10.1063/1.5092559
Physics of Fluids 31/5 2020-04-04
2019 Climent Máñez, H.; Viana Lozoya, J.T.; Sánchez Iglesias, F.; Espinosa de los Monteros García-Frías, J.
Comparative analysis of different methods to compute ditching loads
published pages: , ISSN: , DOI: 10.5281/zenodo.3706511
Aerospace Structural Impact Dynamics International Conference - ASIDIC 2019 Yearly 2020-04-04
2019 Blanchard Clement; Anh Le Van; Séverin Halbout; Nicolas Couty; Yoann Jus;
Coupling fluid and pressurized membrane structure for the study of a helicopter ditching
published pages: 9, ISSN: , DOI: 10.5281/zenodo.3735903
24ème Congrès Français de Mécanique Proceedings Yearly 2020-04-04
2018 Radhouane Hssini
Numerical Stability Analysis of Ditching Simulations
published pages: , ISSN: , DOI:
Hamburg University of Technology, Institute for Fluid Dynamics and Ship Theory 2020-04-04
Application of the MLM to evaluate the hydrodynamic loads endured in the event of aircraft ditching
published pages: 10, ISSN: , DOI: 10.5281/zenodo.3732220
Proceedings of the 6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) 7th European Conference on Computational Fluid Dynamics (ECCM - ECFD 2018) Yearly 2020-04-04
2018 A. Iafrati
Effect of the body curvature on aircraft ditching hydrodynamics
published pages: 4, ISSN: , DOI: 10.5281/zenodo.3732424
Proceedings of 33rd International Workshop on Water Waves and Floating Bodies Yearly 2020-04-04
2018 Maximilian Müller, Matthias Haupt, Peter Horst
Socket-Based Coupling of OpenFOAM and Abaqus to Simulate Vertical Water Entry Of Rigid And Deformable Structures
published pages: 20, ISSN: , DOI: 10.13140/rg.2.2.33478.73281
Proceedings of the 6th ESI OpenFOAM User Conference 2018 6 2020-04-04
2019 Viana Lozoya, J.T.; Espinosa de los Monteros García-Frías, J.; Climent Máñez, H.
EU research project SARAH: ditching tests and simulation of real aircraft geometries
published pages: 21, ISSN: , DOI: 10.5281/zenodo.3706503
Proceedings of the Aerospace Structural Impact Dynamics International Conference - ASIDIC 2019 Yearly 2020-04-04
2017 Lennart Döhle
Untersuchung der Flugzeugrumpflasten bei der Notwasserlandung für variierende Anflugparameter
published pages: , ISSN: , DOI:
Hamburg University of Technology, Institute for Fluid Dynamics and Ship Theory 2020-04-04
2018 Sonja Kraus
Investigation of Coupling Approaches for the Numerical Simulation of Fluid-Structure Interaction
published pages: , ISSN: , DOI:
Hamburg University of Technology, Institute for Fluid Dynamics and Ship Theory Master Thesis 2020-04-04
2019 Climent Máñez, H.; Arévalo Lozano, F.; Viana Lozoya, J.T.; Pérez Heredia, E.
Ditching loads numerical and experimental alternatives
published pages: 18, ISSN: , DOI: 10.5281/zenodo.3706545
International Forum on Aeroelasticity and Structural Dynamics IFASD 2019 Conference Proceedings Yearly 2020-04-04
2018 P.N. Sun, A. Colagrossi, S. Marrone, M. Antuono, A.M. Zhang
Multi-resolution Delta-plus-SPH with tensile instability control: Towards high Reynolds number flows
published pages: 63-80, ISSN: 0010-4655, DOI: 10.1016/j.cpc.2017.11.016
Computer Physics Communications 224 2019-11-20
2018 L. Chiron, S. Marrone, A. Di Mascio, D. Le Touzé
Coupled SPH–FV method with net vorticity and mass transfer
published pages: 111-136, ISSN: 0021-9991, DOI: 10.1016/
Journal of Computational Physics 364 2019-11-20
2018 Pengnan Sun, A-Man Zhang, Salvatore Marrone, Furen Ming
An accurate and efficient SPH modeling of the water entry of circular cylinders
published pages: 60-75, ISSN: 0141-1187, DOI: 10.1016/j.apor.2018.01.004
Applied Ocean Research 72 2019-11-20
2017 Juan Tomás Viana Lozoya, Héctor Climent Máñez
Experimental Ditching Loads on Aeronautical Flexible Structures
published pages: , ISSN: , DOI:
Proceedings of the International Forum on Aeroelasticity and Structural Dynamics (IFASD 2017) 2017 2019-11-20
2017 S. Marrone, A. Colagrossi, J.S. Park, E.F. Campana
Challenges on the numerical prediction of slamming loads on LNG tank insulation panels
published pages: 512-530, ISSN: 0029-8018, DOI: 10.1016/j.oceaneng.2017.06.041
Ocean Engineering 141 2019-11-20
2017 Juan Tomás Viana Lozoya, Héctor Climent Máñez
Flexible Structures Response to Ditching Loads
published pages: , ISSN: , DOI:
Proceedings of the ASIDIC 2017: Aerospace Structural Impact Dynamics International Conference 2017 2019-11-20
2018 S. Marrone, A. Colagrossi, L. Chiron, M. De Leffe, D. Le Touzé
High-speed water impacts of flat plates in different ditching configuration through a Riemann-ALE SPH model
published pages: 38-48, ISSN: 1001-6058, DOI: 10.1007/s42241-018-0004-y
Journal of Hydrodynamics 30/1 2019-11-20

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