Tollmien-Schlichting waves: generation and development
On the excitation of Tollmien-Schlichting waves due to surface vibration
... 3.2 Selection of excitation frequency First a frequency analysis was conducted to identify the dominant frequency while driving 5 motors aligned along the longitudinal axis and was expected to sufficiently ex- cite the ...
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Evolution of Tollmien Schlichting waves over a compliant panel
... the Tollmien-Schlichting mode o f ...the Tollmien-Schlichting mode is subjected to a stabilisation which, though not so strong as the destabilisation suffered by travelling wave flutter, is ...
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Experimental study of the stabilization of Tollmien Schlichting waves by finite amplitude streaks
... of Tollmien–Schlichting 共 TS 兲 waves up to their complete ...TS waves is unambiguously confirmed and by increasing the height of the roughness elements, thus inducing larger amplitude streaks, ...
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Active cancellation of 3D Tollmien-Schlichting waves in the presence of sound and vibrations
... Cancellation of broadband point source TS-waves In order to gain a deeper insight into the effects associated with the consideration of the full transfer matrix, another cancellation experiment was carried out ...
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Acoustic excitation of Tollmien–Schlichting waves due to localised surface roughness
... 2 Department Mechanical Eng. and Aeronautics, City, University London, EC1V 0HB, UK (Received xx; revised xx; accepted xx) Experiments on the receptivity of two-dimensional boundary layers to acoustic distur- bances from ...
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Receptivity coefficients of vortex-vibrational type at excitation of 3D Tollmien-Schlichting waves in a boundary layer on a swept wing
... (a) (b) FIGURE 2. Shape of controlled surface vibrator (a) and amplitude part of its Fourier spectrum (b). Here α and β are streamwise and spanwise wavenumbers, respectively The wave-trains of 3D TS-waves were ...
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Development of Tollmien-Schlichting disturbances in the presence of laminar separation bubbles on an unswept infinite wavy wing
... flow development on flat-plate geometries and that the application of surface waviness to an already curved wing body may explain why a stabilising effect can be achieved in some ...
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Destabilisation and modification of Tollmien-Schlichting disturbances by a three-dimensional surface indentation
... spanwise-uniform Tollmien–Schlichting (TS) waves are assumed to exist, with the objective to investigate how the 3-D surface indentation modifies the 2-D TS ...TS waves along the symmetry ...
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Waves of Development in India
... Child Development Services (ICDS) Scheme ,1975, recent Beti Bachaoo Beti Padao Abhiyan( BBBPA), 2015, and so on are playing key role in ensuring gender equality and empowerment of women in India ...information ...
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In situ generation of coronal Alfvén waves by jets
... 4 CONCLUSIONS In this paper by analyzing temperature isosurfaces to localize the jet, together with the analysis of the horizontal velocity components, we find that the development of a red-blue asymmetry across ...
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Generation mechanism of Z mode waves in the equatorial plasmasphere
... the generation mechanism of Z-mode waves observed in the equatorial plasmasphere, the growth rate of Z-mode electromagnetic waves has been calculated under the higher-order cyclotron interaction ...
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Generation of whistler waves by continuous HF heating of the upper ionosphere
... VLF waves of artificial origin were detected by the DEMETER satellite while overflying the HF-heated region of the ...LH waves being mode converted to whistler waves dur- ing HF ...whistler ...
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Negative frequency waves in optics : control and investigation of their generation and evolution
... The first experimental measurement of RR could not be carried out until the development of PCFs. The small core size allowed for high light intensities in the PCF core, along with the ability to tailor the PCF ...
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The Generation of Gravitational Waves
... Moreover there is ne ith e r differe nt scattering of opposite helicity state s ( cf. 5 .3) nor pa rtial polarization of unpolarized incident gravitational radiation.. [r] ...
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On the Generation of Ocean Wind Waves
... I indicate that the linear growth factor, 1X, is important in the initial generation of wind waves and in providing a substantial amount of the energy near the [r] ...
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Generation of rogue waves at model scale
... rogue waves is becoming increasingly important, as the offshore oil and gas, as well as renewable energy industries, ...disastrous waves poses a significant risk to floating and fixed structures, making it ...
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Physical Principles and Generation of Shock Waves
... wave generation, the applicator surface constitutes the geometric point of highest pressure and highest energy density and so it is called ...shock waves that propagate ...shock waves to focus on ...
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The effect of shear on the generation of gravity waves
... The objective of this paper is to study the nature of the solutions to Long’s equation when some shear is present in the base flow. Using conditions which depend solely on the base flow and Brunt-V¨ais¨al¨a frequency we ...
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Generation of resonant Alfvén waves in the auroral oval
... Alfvén waves (a small-scale mode with a scale of about the plasma inertial scale λ e = c/ω e ...Alfvén waves by coherent FAC fluctu- ations the azimuthal component of the magnetic field has a pole ...
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Generation of waves at an inertial surface due to explosions
... Kranzer and Keller [3] considered the three dimensional unsteady motion due to an arbitrary axially symmetric initial surface disturbance in an ocean of uniform finite depth and gave exp[r] ...
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