Numerical simulation of H2/air detonation using unstructured mesh |
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Authors: | Fumiya Togashi Rainald Löhner Nobuyuki Tsuboi |
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Institution: | (1) College of Science, George Mason University, 4400 University Dr. MS 6A2, Fairfax, VA 22030, USA;(2) Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan |
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Abstract: | To explore the capability of unstructured mesh to simulate detonation wave propagation phenomena, numerical simulation of
H2/air detonation using unstructured mesh was conducted. The unstructured mesh has several adv- antages such as easy mesh adaptation
and flexibility to the complicated configurations. To examine the resolution dependency of the unstructured mesh, several
simulations varying the mesh size were conducted and compared with a computed result using a structured mesh. The results
show that the unstructured mesh solution captures the detailed structure of detonation wave, as well as the structured mesh
solution. To capture the detailed detonation cell structure, the unstructured mesh simulations required at least twice, ideally
5times the resolution of structured mesh solution.
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Keywords: | Detonation Unstructured mesh CFD H2– air Detailed chemical reaction model |
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