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Flow visualization study of an airship model using a water towing tank |
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| Authors: | Behnam H. Beheshti Fabian Wittmer Reza S. Abhari |
| Affiliation: | 1. Institute of Nuclear and Energy Technologies, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany;2. Engineering & Scientific Software, Inc., 2128 S. Ensenada Circle, Rio Rancho, NM 87124, USA;1. Caspian Faculty of Engineering, University College of Engineering, University of Tehran, Tehran, Iran;2. Young Researchers and Elite Club, Science and Research Branch, Islamic Azad University, Tehran, Iran;3. Young Researchers and Elite Club, South Tehran Branch, Islamic Azad University, Tehran, Iran;1. Universidade da Beira Interior, Departamento de Engenharia Electromecânica, R. Marquês D''Ávila e Bolama, 6201-001 Covilhã, Portugal;2. University Modena e Reggio-Emilia, Department of Science and Methods for Engineering, Via Amendola, 2, Pad. Morselli, 42122 Reggio Emilia, Italy |
| Abstract: | The work presented investigates the aerodynamic drag and flow physics of an airship configuration. The investigation is carried out experimentally in a water towing tank. The purpose of this project is to improve the understanding of the aerodynamic characteristics of an airship through quantitative and qualitative approaches. Qualitative measurements of integral drag force and moment are measured in the presence of a crosswind. Flow visualization using colored and fluorescent dyes has been applied to improve knowledge of the aerodynamics of airship configurations with an emphasis on the boundary layer separation, transition and hull–appendage interference effects. |
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