Searched for: author%3A%22Vos%2C+Roelof%22
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Laar, Y.A. (author), Atherstone, D.M. (author), Benad, J. (author), Vos, Roelof (author)
The Flying V is a long-range, flying-wing aircraft where payload and fuel both reside in a V-shaped, crescent wing with large winglets that double as vertical tail planes. The objective of this study is to maximize the lift-to-drag (L/D) ratio of the Flying V in cruise conditions, i.e. CL= 0.26, M = 0.85 and to investigate its off-design...
conference paper 2024
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de Vries, R. (author), Wolleswinkel, Rob E. (author), Hoogreef, M.F.M. (author), Vos, Roelof (author)
Battery-electric aviation is commonly believed to be limited to small aircraft and is therefore expected have a negligible impact on the decarbonization of the aviation sector. In this paper we argue that, with the correct choice of design parameters and top-level aircraft requirements, the addressable market is actually substantial. To...
conference paper 2024
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Wolleswinkel, Rob E. (author), de Vries, R. (author), Hoogreef, M.F.M. (author), Vos, Roelof (author)
Thus far, battery-electric propulsion has not been considered a promising pathway to climate-neutral aviation. Given current and expected battery technology, in most literature battery-electric aircraft are only considered feasible for short ranges (< 400 km) and small payloads (< 19 pax). As a result, battery-electric aircraft development...
conference paper 2024
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Krempus, D. (author), Beltrame, F. (author), Majer, M. (author), Colonna, Piero (author), de Servi, C.M. (author), Vos, Roelof (author)
This paper presents a preliminary study about a combined-cycle engine based on a turboshaft engine and an organic-Rankine-cycle (ORC) bottoming unit to be used onboard an aircraft with a turboelectric propulsion system. The aim is to analyse whether benefits with respect to mission fuel consumption can be derived by employing such a combined...
report 2024
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Proesmans, P. (author), Vos, Roelof (author)
This paper focuses on the conceptual design optimization of liquid hydrogen aircraft and their performance in terms of climate impact, cash operating cost, and energy consumption. An automated, multidisciplinary design framework for kerosene-powered aircraft is extended to design liquid hydrogen-powered aircraft at a conceptual level. A...
journal article 2024
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Saez Ortuño, M.A. (author), Yin, F. (author), Gangoli Rao, A. (author), Vos, Roelof (author), Proesmans, P. (author)
As climate change aggravates, the aviation sector strives to minimize its climate footprint. To this end, international organizations, such as ICAO and ACARE, are promoting mitigation measures including novel technologies, operations, and energy carriers to reduce aircraft emissions significantly. Hydrogen (H2) as an alternative fuel has the...
conference paper 2023
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Joosten, S.K.B. (author), Stroosma, O. (author), Vos, Roelof (author), Mulder, Max (author)
Flying wings are known for their limited lateral-directional stability and handling qualities. This study aims at assessing the lateral-directional handling qualities of a conceptual flying wing aircraft currently in development at TU Delft, the Flying-V, in a moving-base flight simulator. It focuses on two aspects: First assess the lateral...
conference paper 2023
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Vugts, G. (author), Stroosma, O. (author), Vos, Roelof (author), Mulder, Max (author)
A novel aircraft configuration, the tailless Flying-V, is examined for its longitudinal handling qualities in cruise by means of piloted simulations. The Flying-V is controlled by two aileron/elevator (elevon) surfaces on each side, and rudders on each wingtip. Two control allocation schemes were created: a conventional one where both inboard...
conference paper 2023
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Torelli, R. (author), Stroosma, O. (author), Vos, Roelof (author), Mulder, Max (author)
An improved understanding of pilot’s control behavior adaptations in response to sudden changes in the vehicle dynamics is essential for realizing adaptive support systems that remain effective when task characteristics suddenly change. In this paper, we replicate, extend, and validate the ‘adaptive pilot model’ proposed by Hess to verify its...
conference paper 2023
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de Zoeten, G.J. (author), Varriale, Carmine (author), Vos, Roelof (author)
This study evaluates the flight performance of a Flying-V aircraft designed for transonic passenger transport. The Flying-V is a disruptive aircraft configuration that has shown to possess promising aerodynamic performance during preliminary design. It is compared to a competitor aircraft reminiscent of the Airbus A350-1000, for the same thrust...
conference paper 2023
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Proesmans, P. (author), Morlupo, F. (author), Santos, Bruno F. (author), Vos, Roelof (author)
To reduce the climate impact of aviation, researchers are studying the replacement of fossil kerosene with liquid hydrogen and/or drop-in sustainable aviation fuel (SAF). These fuels can bring significant reductions in CO2 emissions and can offer savings in terms of non-CO2 climate effects. In addition, tube-and-wing aircraft can be optimized to...
conference paper 2023
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van Luijk, N.L.M. (author), Vos, Roelof (author)
The Flying V is a flying wing aircraft consisting of two pressurized passenger cabins placed in a V shape. Its longitudinal and lateral control is ensured via elevons and split flaps on the outboard wing, and rudders on the tip-mounted winglets. The goal of this study is to devise a design for the outboard wing of the Flying V through a...
conference paper 2023
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de Vries, R. (author), Vos, Roelof (author)
The goal of this study is to analyze how the aeropropulsive benefits of an over-the-wing distributed-propulsion (OTWDP) system at the component level translate into an aeropropulsive benefit at the aircraft level, as well as to determine whether this enhancement is sufficient to lead to a reduction in overall energy consumption. For this, the...
journal article 2023
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Krempus, D. (author), Beltrame, F. (author), Majer, M. (author), de Servi, C.M. (author), Vos, Roelof (author)
This paper presents a preliminary study about a combined-cycle engine based on a turboshaft engine and an organic-Rankine-cycle (ORC) bottoming unit to be used onboard an aircraft with a turboelectric propulsion system. The aim is to analyse whether benefits with respect to mission fuel consumption can be derived by employing such a combined...
conference paper 2023
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Benad, J. (author), Vos, Roelof (author)
Ten years after the initial sketches of the Flying V were made, we intend to give an overview of the development of this concept until the present day. The Flying V is a new concept for an efficient aircraft. It is a pure flying wing which includes a V-shaped passenger cabin. In this work, we describe how the concept developed - from the first...
conference paper 2022
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Radhakrishnan, Kaushik (author), Deck, K.T. (author), Proesmans, P. (author), Linke, Florian (author), Yin, F. (author), Grewe, V. (author), Vos, Roelof (author), Lührs, Benjamin (author), Niklaβ, Malte (author), Dedoussi, I.C. (author)
The aircraft’s environmental performance on fleet level is so far completely decoupled from the design process. The climate impact from aviation arising from non-CO2 effects are largely independent from CO2 emissions, but rather depend on the atmospheric state. Previously complex climate-chemistry models were used to evaluate the non-CO2...
conference paper 2022
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Thijssen, R. (author), Proesmans, P. (author), Vos, Roelof (author)
This paper studies the climate impact of propeller aircraft which are optimized for either minimum direct operating costs, minimum fuel mass, or minimum average temperature response (ATR100). The latter parameter provides a measure of the global warming impact of the aircraft design, considering both CO2 and non-CO2 effects. We study turboprop...
conference paper 2022
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Heidebrecht, A. (author), Burger, K.W. (author), Hoogreef, M.F.M. (author), Vos, Roelof (author), Isikveren, Askin T. (author), Gangoli Rao, A. (author)
The concept of an "Auxiliary Power and Propulsion Unit" (APPU) is introduced, which consists of a Boundarylayer ingesting (BLI) propulsor with an engine mounted at the rear of an passenger aircraft fuselage, replacing the Auxiliary Power Unit (APU) and contributing around 10% of total cruise thrust, as well as auxiliary power. This APPU unit is...
conference paper 2022
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Proesmans, P. (author), Vos, Roelof (author)
This paper presents a method to assess the key performance indicators of aircraft designed for minimum direct operating costs and aircraft designed for minimum global warming impact. The method comprises a multidisciplinary aircraft optimization algorithm capable of changing wing, engine, and mission design variables while including constraints...
journal article 2022
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Finger, D. Felix (author), de Vries, R. (author), Vos, Roelof (author), Braun, Carsten (author), Bil, Cees (author)
The number of studies on hybrid-electric aircraft is steadily increasing because these configurations can lead to lower operating costs and environmental impact than traditional aircraft. However, due to the lack of reference data of actual hybrid-electric aircraft, the design tools and results are difficult to validate. This paper analyzes...
journal article 2022
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