くさび形物体に沿う自由対流境界層の安定性 : 一様熱流束の場合

概要

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Laminar free convection boundary layer flow along a porous wedge which is maintained at a uniform heat-flux have been studied theoretically. Boundary layer equations for the basic steady flow are solved numerically using an efficient finite-difference method in combination with an iterative method. The temporal neutral stability theory for wavelike disturbance of Tollmien-Schrichying type are then presented for the velocity and temperature functions. The corresponding eigenvalue problem for the disturbance amplitude functions is also solved numerically. The neutral stability curves and the disturbance amplitude of the velocity or temperature are given for some values of wedge angle parameter m, suction/injection parameter ξ and modified Grashof number G. The Prandtl number Pγ is taken to 0.73 throughout this paper.
社団法人日本機械学会の論文
1998-10-25