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Ge Wang, Chengke Li, Weiqiang Pu, Bocheng Zhou, Haiwei Yang and Zenan Yang
A solid rocket motor (SRM) with a high aspect ratio that performs normally during ground tests may experience instability during flight. To address this issue, this study employs the pulse triggering method and the numerical approach of two-way fluid?str...
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Ziyu Wang, Zi Kan, Huadong Li, Daochun Li, Shiwei Zhao and Zhan Tu
By combining the flapping and rotary motion, a flapping wing rotor (FWR) shows unique kinematics of motion. It can produce a significantly higher aerodynamic efficiency and lift coefficient than insect-like flapping wings. However, due to the lack of con...
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Eric J. Kim and Ruben E. Perez
The energy efficiency and flight endurance of small unmanned aerial vehicles (SUAVs) can be improved through the implementation of autonomous soaring strategies. Biologically inspired flight techniques such as dynamic and thermal soaring offer significan...
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Sigrun Matthes, Ling Lim, Ulrike Burkhardt, Katrin Dahlmann, Simone Dietmüller, Volker Grewe, Amund S. Haslerud, Johannes Hendricks, Bethan Owen, Giovanni Pitari, Mattia Righi and Agnieszka Skowron
Aviation is seeking for ways to reduce its climate impact caused by CO2 emissions and non-CO2 effects. Operational measures which change overall flight altitude have the potential to reduce climate impact of individual effects, comprising CO2 but in part...
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Phillip Burgers
An extant bird resorts to flapping and running along its take-off run to generate lift and thrust in order to reach the minimum required wing velocity speed required for lift-off. This paper introduces the replication hypothesis that posits that the vari...
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Can Alkaya, Ashish Alex Sam and Apostolos Pesyridis
The conceptual aircraft design and its integration with a combined cycle engine for hypersonic cruise at Mach 8 is documented in this paper. The paper describes the process taken to develop a hypersonic aircraft from a conceptual approach. The discussion...
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Richard Robinson and Marwan El Nasser
In response to the financial crisis of 2008, the Federal Reserve radically increased the monetary base. Banks responded by increasing excess reserves rather than increasing bank loans, and the public responded with a substantial flight to liquidity in th...
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