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An Impact Assessment of Degrading Elements on the Overall Benefit of Aircraft with Hybrid Laminar Flow Control

Pohya, Ahmad Ali and Wicke, Kai (2019) An Impact Assessment of Degrading Elements on the Overall Benefit of Aircraft with Hybrid Laminar Flow Control. In: AIAA SciTech 2019 Forum. AIAA SciTech 2019, 2019-01-07 - 2019-01-11, San Diego, California, USA. doi: 10.2514/6.2019-1589.

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Official URL: https://arc.aiaa.org/doi/abs/10.2514/6.2019-1589


The application of Hybrid Laminar Flow Control (HLFC) on transport aircraft is one of many promising fuel reduction technologies. Even though research and development around this topic is ongoing for some decades, HLFC has not been commercially deployed yet. One major factor is the insecurity of operators regarding the overall efficiency, especially due to the additional maintenance of the system and its components or the laminar effectivity under realistic operational conditions. In this study, we provide a quantification of the impact of several critical elements on the economic benefit of aircraft with HLFC throughout the lifecycle. These are additional line and base maintenance, degreadation due to cloud encounter and insect contamination as well as an increased aircraft price. The influence of each element is thoroughly analyzed and discussed. Results show that the overall economic benefit is significantly less sensitive towards variations of additional maintenance than towards different insect contamination and cloud encounter degradation scenarios. The highest sensitivity was found when varying the aircraft price of the HLFC aircraft. A final combined impact analysis revealed that under the realistic assumptions made in this study for all critical elements, the HLFC aircraft is still economically superior to its conventional turbulent counterpart.

Item URL in elib:https://elib.dlr.de/127292/
Document Type:Conference or Workshop Item (Speech)
Title:An Impact Assessment of Degrading Elements on the Overall Benefit of Aircraft with Hybrid Laminar Flow Control
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Pohya, Ahmad AliUNSPECIFIEDhttps://orcid.org/0000-0002-2734-3199UNSPECIFIED
Wicke, KaiUNSPECIFIEDhttps://orcid.org/0000-0002-8220-6437UNSPECIFIED
Date:6 January 2019
Journal or Publication Title:AIAA SciTech 2019 Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Assessment, Hybrid Laminar Flow Control, Lifecycle Cost-Benefit
Event Title:AIAA SciTech 2019
Event Location:San Diego, California, USA
Event Type:international Conference
Event Start Date:7 January 2019
Event End Date:11 January 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts and Integration (old), L - Simulation and Validation (old)
Location: Hamburg
Institutes and Institutions:Institute of Maintenance, Repair and Overhaul > Product Life Cycle Management
Deposited By: Pohya, M.Sc. Ahmad Ali
Deposited On:28 Oct 2019 08:29
Last Modified:24 Apr 2024 20:31

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