Rotor Flow Analysis in the Presence of Fuselage Using Unsteady Panel Method

Srilatha, KR and Premalatha, - and Mudkavi, Vidyadhar Y (2021) Rotor Flow Analysis in the Presence of Fuselage Using Unsteady Panel Method. In: Design and Development of Aerospace Vehicles and Propulsion Systems, Singapore.

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Panel methods are known to be simple yet effective during initial design stages. With the advent of advanced CFD methods and high speed computers, there is a feeling that these methods are no longer needed. On the contrary, experience with many practical problems shows that their utility is significant. There are also some problems where panel methods may be even superior to CFD approaches. One such problem is that of flow field analysis of rotors in the presence of stationary fuselage. In this paper we make use of an unsteady panel method which is a simple extension of a steady panel method to assess the effect of presence of fuselage on the rotor wake. Another significant advantage an unsteady panel method offers is that it is particularly easy to ‘fly’ the rotor in the presence of fuselage and assess the wake. Typical flight scenarios include hover, forward flight, ascent and descent flights. Some specific applications include assessment of wake flow for weapon separation from helicopters and estimates of noise due to unsteady rotor loading.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Unsteady panel method, Rotor, Fuselage
Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
ENGINEERING > Mechanical Engineering
Depositing User: Smt Bhagya Rekha KA
Date Deposited: 11 Nov 2022 15:30
Last Modified: 11 Nov 2022 15:30

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