Global stability analysis of axisymmetric boundary layer over a circular cone

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dc.contributor.author Bhoraniya, Ramesh
dc.contributor.author Narayanan, Vinod
dc.date.accessioned 2017-05-23T09:21:01Z
dc.date.available 2017-05-23T09:21:01Z
dc.date.issued 2017-04
dc.identifier.citation Bhoraniya, Ramesh and Narayanan, Vinod, “Global stability analysis of axisymmetric boundary layer over a circular cone”, Journal of Physics: Conference Series, DOI: 10.1088/1742-6596/822/1/012018, vol. 822, Apr. 2017. en_US
dc.identifier.issn 1742-6588
dc.identifier.issn 1742-6596
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/2942
dc.identifier.uri https://doi.org/10.1088/1742-6596/822/1/012018
dc.description.abstract This paper presents linear biglobal stability analysis of axisymmetric boundary layer over a circular cone. An incompressible flow over a sharp circular cone is considered with zero angle of attack. The base flow velocity profile is fully non-parallel and non-similar. Linearized Navier-Stokes (LNS) equations are derived for disturbance flow quantities using the standard procedure. The LNS equations are discretized using Chebyshev spectral collocation method. The governing equations along with boundary conditions form a general eigenvalues problem. The numerical solution of general eigenvalues problem is obtained using ARPACK subroutine, which uses Arnoldis iterative algorithm. The global temporal modes are computed for the range of Reynolds number and semi-cone angles(α)for the axisymmetric mode(N=0). The flow is found temporally and spatially stable for 1° semi-cone angle and the range of Reynolds numbers considered. However, flow becomes temporally unstable and spatially stable with the increase in semi-cone angle(α). The wave-like behaviour of the disturbances is found at small semi-cone angles (α). en_US
dc.description.statementofresponsibility by Ramesh Bhoraniya and Vinod Narayanan
dc.format.extent Vol. 822, no. 1 pp. 012018
dc.language.iso en_US en_US
dc.publisher Institute of Physics en_US
dc.title Global stability analysis of axisymmetric boundary layer over a circular cone en_US
dc.type Article en_US
dc.relation.journal Journal of Physics: Conference Series


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