Author: Ana María de León Meléndez
Publisher:
ISBN:
Category : Vortex-motion
Languages : en
Pages : 312
Book Description
Experimental Study of Wave/vortex Interactions
Author: Ana María de León Meléndez
Publisher:
ISBN:
Category : Vortex-motion
Languages : en
Pages : 312
Book Description
Publisher:
ISBN:
Category : Vortex-motion
Languages : en
Pages : 312
Book Description
An Experimental Study of Shock Wave/vortex Interaction
Author: O.M. Metwally
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An Experimental Study of the Interaction of a Longitudinal Vortex with a Traveling Shock Wave
Author: Juan H. Agui
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Experimental Study of Wave Breaking and Wave-structure Interaction
Author: Kuang-An Chang
Publisher:
ISBN:
Category :
Languages : en
Pages : 406
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 406
Book Description
An Experimental Investigation of Shock Wave/vortex Interaction
Author: Louis Nicholas Cattafesta
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 516
Book Description
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 516
Book Description
A Theoretical and Experimental Study of the Interaction of a Streamwise Vortex with a Surface
Author: Gustavo Cesar Rachid Bodstein
Publisher:
ISBN:
Category : Acoustic streaming
Languages : en
Pages : 370
Book Description
Publisher:
ISBN:
Category : Acoustic streaming
Languages : en
Pages : 370
Book Description
Experimental Design of a Supersonic Shock Wave/vortex Interaction at Mach 3
Author: James Edward Weger
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Experimental Study of the Use of Vortex Generators to Reduce Fluctuating Pressure Loads in Shock Wave Turbulent Boundary Layer Interactions
Author: J. W. Barter
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Theoretical and Experimental Study of the Interaction of Free-surface Waves on Liquid Metals with Transverse Magnetic Fields (one-dimensional Unsteady Waves)
Author: Vernon J. Rossow
Publisher:
ISBN:
Category : Liquid metals
Languages : en
Pages : 120
Book Description
Publisher:
ISBN:
Category : Liquid metals
Languages : en
Pages : 120
Book Description
Experimental Study of Separated Ramp-induced Shock/boundary-layer Interaction with Upstream Micro-vortex Generation at Mach 2.5
Author: Yusi Shih
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 134
Book Description
Shock wave/boundary layer interactions (SBLIs) are important issues for high-speed vehicles. SBLIs reduce the performance of aerodynamic surfaces and engine inlets, amongst a number of adverse effects. Micro-vortex generators (MVGs) are a flow control method with strong potential to mitigate the effects of SBLI by energizing the boundary layer through momentum transfers from the freestream. They have been implemented in actual configurations at low speeds. The present research includes a combined experimental and theoretical analysis of the evolution of the perturbation downstream the MVG, the formation of vortices, and their interaction with the shock front. Experiments were performed with a baseline MVG configuration of 90° trailing edge on flat plate, ramp alone, and also with MVG mounted ahead of a 20° ramp. The surface flow visualization and particle image velocimetry (PIV) results are presented; the surface flow visualization shows a substantial suppression of SBLIs. A new method to quantify the effectiveness of the MVG on the shock recompression is presented. Moreover, the PIV results were used as the initial input values for the simulation work. A theoretical analysis of the interaction of the MVG perturbation with the boundary layer is performed by assuming linear dynamics of the perturbation. The major assumption is that the interaction between MVG perturbation and the shear flow is affected by transient growth as a result of the non-orthogonality of the linearized Navier-Stokes equations. A new method to perform the projection of the measured perturbation on the continuous modes of the boundary layer is presented. The method takes advantage of the biorthogonality of the direct and adjoint modes. The implementation of such a method using both the Chebyshev polynomials and a shooting algorithm is discussed. The results of the theoretical analysis are encouraging and display a similar trend as the experiments. Both experimental and theoretical results yield perturbation decay not far downstream from the MVG: about 72 mm for experiments, and about 95 mm for simulation. The experiments display two distinguishable growths downstream of MVG, while the simulation predicted one small growth at the very beginning. Both works show trends that agree well with each other.
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 134
Book Description
Shock wave/boundary layer interactions (SBLIs) are important issues for high-speed vehicles. SBLIs reduce the performance of aerodynamic surfaces and engine inlets, amongst a number of adverse effects. Micro-vortex generators (MVGs) are a flow control method with strong potential to mitigate the effects of SBLI by energizing the boundary layer through momentum transfers from the freestream. They have been implemented in actual configurations at low speeds. The present research includes a combined experimental and theoretical analysis of the evolution of the perturbation downstream the MVG, the formation of vortices, and their interaction with the shock front. Experiments were performed with a baseline MVG configuration of 90° trailing edge on flat plate, ramp alone, and also with MVG mounted ahead of a 20° ramp. The surface flow visualization and particle image velocimetry (PIV) results are presented; the surface flow visualization shows a substantial suppression of SBLIs. A new method to quantify the effectiveness of the MVG on the shock recompression is presented. Moreover, the PIV results were used as the initial input values for the simulation work. A theoretical analysis of the interaction of the MVG perturbation with the boundary layer is performed by assuming linear dynamics of the perturbation. The major assumption is that the interaction between MVG perturbation and the shear flow is affected by transient growth as a result of the non-orthogonality of the linearized Navier-Stokes equations. A new method to perform the projection of the measured perturbation on the continuous modes of the boundary layer is presented. The method takes advantage of the biorthogonality of the direct and adjoint modes. The implementation of such a method using both the Chebyshev polynomials and a shooting algorithm is discussed. The results of the theoretical analysis are encouraging and display a similar trend as the experiments. Both experimental and theoretical results yield perturbation decay not far downstream from the MVG: about 72 mm for experiments, and about 95 mm for simulation. The experiments display two distinguishable growths downstream of MVG, while the simulation predicted one small growth at the very beginning. Both works show trends that agree well with each other.