UNSTEADY AERODYNAMIC ANALYSIS USING BOUNDARY ELEMENT METHOD AND CONTINUOUS-TIME STATE-SPACE MODELING

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MOHAMMADI AMIN M.; GHADIRI B.; HADDADPOUR H.

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Paper Information

Journal: Modares Mechanical Engineering Year:2011 | Volume:11 | Issue:1 Page(s): 89-101

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Information Journal Paper

Title

UNSTEADY AERODYNAMIC ANALYSIS USING BOUNDARY ELEMENT METHOD AND CONTINUOUS-TIME STATE-SPACE MODELING

Author(s)

MOHAMMADI AMIN M. | GHADIRI B. | HADDADPOUR H. | Issue Writer Certificate

Keywords

CONTINUOUSQ2

TIME STATE-SPACE MODELQ2

STATE-SPACE AERODYNAMICS MODELINGQ3

BOUNDARY ELEMENT METHODQ2

UNSTEADY AERODYNAMICSQ2

Abstract

In this paper a CONTINUOUS-time state-space aerodynamic model has been developed based on the BOUNDARY ELEMENT METHOD. First, boundary integral equations for unsteady potential subsonic flow around lifting bodies are presented with emphasis on a modified formulation for thin wings. Next, the BEM discretized problem of unsteady flow around an arbitrary wing is recast in the form of a state-space model using some auxiliary assumptions. To validate the proposed model, its predictions for unsteady aerodynamic coefficients due to various unsteady flows about different wing geometries were compared to the verified results of the direct boundary element solution and good agreement was observed. Because of the resulting aerodynamic model has been constructed in the CONTINUOUS-time domain, it is particularly useful for optimization and nonlinear analysis purposes. Moreover, its state-space representation is the appropriate form for an aerodynamic model in control applications.

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APA: Copy

MOHAMMADI AMIN, M., GHADIRI, B., & HADDADPOUR, H.. (2011). UNSTEADY AERODYNAMIC ANALYSIS USING BOUNDARY ELEMENT METHOD AND CONTINUOUS-TIME STATE-SPACE MODELING. MODARES MECHANICAL ENGINEERING, 11(1), 89-101. SID. https://sid.ir/paper/179927/en

Vancouver: Copy

MOHAMMADI AMIN M., GHADIRI B., HADDADPOUR H.. UNSTEADY AERODYNAMIC ANALYSIS USING BOUNDARY ELEMENT METHOD AND CONTINUOUS-TIME STATE-SPACE MODELING. MODARES MECHANICAL ENGINEERING[Internet]. 2011;11(1):89-101. Available from: https://sid.ir/paper/179927/en

IEEE: Copy

M. MOHAMMADI AMIN, B. GHADIRI, and H. HADDADPOUR, “UNSTEADY AERODYNAMIC ANALYSIS USING BOUNDARY ELEMENT METHOD AND CONTINUOUS-TIME STATE-SPACE MODELING,” MODARES MECHANICAL ENGINEERING, vol. 11, no. 1, pp. 89–101, 2011, [Online]. Available: https://sid.ir/paper/179927/en

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