作者: amputation 時(shí)間: 2025-3-21 21:14
Structure of Turbulent Boundary Layer on an Oscillating Flat Platery layer has been investigated experimentally in a wind tunnel in which a flat plate is driven sinusoidally parallel to the constant freestream. Turbulent patches, which appear in the transition region, were also examined to compare its structure with that of the fully turbulent layer.作者: CHYME 時(shí)間: 2025-3-22 03:22
Measurements of the Periodic Velocity Oscillations Near the Wall in Unsteady Turbulent Channel Floware not affected by the forced oscillations. The periodic oscillations follow closely the laminar Stokes solution near the wall, except a low frequency where the phase shift tends to zero. It is shown that the non dimensional Stokes thickness ?. in terms of the wall thickness is the important parameter.作者: 固執(zhí)點(diǎn)好 時(shí)間: 2025-3-22 05:33
Response of a Turbulent Boundary Layer to a Pulsation of the External Flow With and Without Adverse mber from 1.5 to 18. The harmonic analysis of the main parameters is presented,and compared with the calculation results obtained from the integration of the global or local boundary layer equations.The occurrence of singularities in boundary layer equations solved with an imposed adverse pressure distribution,is discussed.作者: ambivalence 時(shí)間: 2025-3-22 10:28 作者: Nmda-Receptor 時(shí)間: 2025-3-22 16:13
Numerical Experiments on Transition Triggering off in a Two-Dimensional Shear Flowring off in a mixing layer of initial tanh(y) profile. The inflow is excited by sinuso?dal waves resulting from the linear theory of hydrodynamic instability. Numerical realizations are compared, through streamwise growth of momentum thickness and vorticity plots, with Winant and Browand experiments.作者: RENAL 時(shí)間: 2025-3-22 20:26 作者: Feigned 時(shí)間: 2025-3-23 00:16 作者: 斜谷 時(shí)間: 2025-3-23 03:28 作者: 敲詐 時(shí)間: 2025-3-23 05:54 作者: 俗艷 時(shí)間: 2025-3-23 10:51
https://doi.org/10.1007/978-3-642-81732-8Flows; Pitch; Scherstr?mung; Turbulenz; behavior; mechanics; oscillation; paper; turbulence; turbulent flow; w作者: 正面 時(shí)間: 2025-3-23 14:53
A Turbulent Flow Navier-Stokes Analysis for an Airfoil Oscillating in PitchA time-dependent compressible turbulent Navier-Stokes analysis is applied to the oscillating airfoil flow field problem. The turbulence model is based upon a turbulence energy equation. Results obtained for an airfoil oscillating in pitch are compared to data.作者: Indebted 時(shí)間: 2025-3-23 21:13
uct improvement by means of perturbation-theoretic considerations. Finally, the influence of round-off in data and limited computer accuracy can also be addressed with perturbation-theoretic concepts. As far as we know, this issue has not been addressed before within the LCA-literature.作者: 難管 時(shí)間: 2025-3-24 02:01 作者: CUB 時(shí)間: 2025-3-24 05:50 作者: agenda 時(shí)間: 2025-3-24 08:28
J. Cousteix,R. Houdeville,J. Javelleled allied systems . Though the philosophical ideas contained in each system must have been prevalent for a long time, they must have been formulated in the form of a system only after a long period of debates.作者: Gratulate 時(shí)間: 2025-3-24 13:28 作者: LEERY 時(shí)間: 2025-3-24 15:10 作者: DEAF 時(shí)間: 2025-3-24 19:50 作者: 性滿足 時(shí)間: 2025-3-24 23:42
M. Bouriot,L. F. Tsend the difficulty of conducting surveys there.. That development will be pursued in Chapter 5. This chapter will instead concentrate on uses of political culture that continued to mine the comparative vein. As such, it will continue and enhance the critique of the comparative use that has been presented so far.作者: 半圓鑿 時(shí)間: 2025-3-25 04:21 作者: syncope 時(shí)間: 2025-3-25 10:16 作者: Incise 時(shí)間: 2025-3-25 11:38 作者: 爭議的蘋果 時(shí)間: 2025-3-25 17:24
Turbulence Modulated by a Coherent Shear Wave in a Wall Boundary Layerodulation of the normal stress (-ρu′u′), which has been measured by phase avering, results from a modulation of the probability of the occurrence of the so-called bursts. There are good arguments that the modulation of the shear stress (-ρu′v′) originates from this effect, too.作者: HAVOC 時(shí)間: 2025-3-25 20:18 作者: textile 時(shí)間: 2025-3-26 01:16 作者: 合同 時(shí)間: 2025-3-26 04:57
Leonard M. Weinsteinof uncanny realism. Complicated analysis programs have been developed that can calculate the stresses in complex structures and display the results as colour shaded maps upon the surface of a pictorial view of the object. If the time to process and the system cost are ignored, then the apparent ease作者: Hippocampus 時(shí)間: 2025-3-26 09:31
H. U. Meier,H.-P. Kreplin,L. W. Fanga fairly narrow range of subjects, breadth is there too, and the implication for all the arts is manifest. The examples cover mainly music, but there is a broad selection of architecture, sculpture, painting, both abstract and figural, and a brief selection from the field of narrative poetic art. Many more ty978-94-010-8852-7978-94-009-5327-7作者: nettle 時(shí)間: 2025-3-26 15:50
G. Binder,J. L. Kuenyophers in recent years. This fact is no doubt owed in ‘part to the legacy of positivism, whose tenets have included a sharp distinction between what Hans Reichenbach called the context of discovery and the context of justification. Philosophy in this view must address itself to the logic of justifyi作者: 尋找 時(shí)間: 2025-3-26 19:57 作者: 痛打 時(shí)間: 2025-3-26 22:04
Tuncer Cebeci,Lawrence W. Carr involved regarding the puzzle of eternal experience; second, an understanding of how different philosophical formulations of responses to the puzzle; lastly, a philosophical visualization of experience developed by thinking through temporality as a proposed solution to the puzzle.作者: 重疊 時(shí)間: 2025-3-27 01:09
Chih-Ming Ho,Shin-Hsing Chenendeavours to establish’ ([11] pp. 115 f.). Flew, it will be remembered, went further and claimed that because of the ‘nature of the propositions concerned’ ([16] p. 208) the evidence never could be that strong. In order to assess the worth of this claim we must digress and see in general how historical evidence is weighed.作者: 討好女人 時(shí)間: 2025-3-27 05:52
Y. Tassa,N. L. Sankarlity and alienation. Husserl’s texts are interpreted as defending the idea that cultural crises are not brought to a close by replacing passivity with activity but by having more of both..978-94-007-3248-3978-90-481-3915-6Series ISSN 0923-9545 Series E-ISSN 2215-1915 作者: 成績上升 時(shí)間: 2025-3-27 10:07
r instance Atkinson (1989) and in particular Stewart & Sun (1990). This theory can be used for a number of interesting subjects in LCA. First, the coefficients that describe the unit processes and define the technology matrix and the intervention matrix often suffer from uncertainty. A statistical t作者: 鬧劇 時(shí)間: 2025-3-27 15:32 作者: frozen-shoulder 時(shí)間: 2025-3-27 19:24
P. G. Parikh,W. C. Reynolds,R. Jayaraman,L. W. Carrave been easy to see the situation inside and outside of Germany clearly in those days. Of course, we knew that the official reports were sketchy, if not falsified. But, in terms of information theory, this is precisely where the problem lay: How were we to reconstruct reality from incomplete or fal作者: Gyrate 時(shí)間: 2025-3-28 00:13
B. R. Ramaprian,S. W. Tunical authors, and computer scientists need to learn more about the effective use of computers for writing. This book discusses how computers can help support writing. It explores the issues associated with using computers to train and help writers, concentrating on computational and user aspects an作者: Amendment 時(shí)間: 2025-3-28 03:36
Leonard M. Weinsteinting software on offer to the potential user is bewildering. This extends from the inexpensive single-user micro-based system, through to the vast industrial networks which are supported by many remote mainframe machines and have been reported to service up to a thousand workstations. This advance i作者: Offset 時(shí)間: 2025-3-28 09:05 作者: CYN 時(shí)間: 2025-3-28 10:45
K. Richter,D. Ronnebergerriety came a few decades later, from socialists who used it as a term to describe what they disliked about the workings of liberal markets. Karl Marx, arguably one of the most prominent socialists of the time, used it as a way to refer to a system of markets that in his view favored capitalists at t作者: Servile 時(shí)間: 2025-3-28 18:32
H. U. Meier,H.-P. Kreplin,L. W. Fang proceed. While the book is not a formalist theory of art it aims to take steps toward clearing up the concept of form, which is of central interest in art, either by its observance or by deliberate defiance. While our interest is thus in one concept, it is as a matter of fact complex and covers som作者: 謙虛的人 時(shí)間: 2025-3-28 20:14 作者: Conduit 時(shí)間: 2025-3-28 23:04 作者: demote 時(shí)間: 2025-3-29 04:06
J. Cousteix,R. Houdeville,J. Javelle, also known as ., is characterized as orthodox . and a system that does not accept its authority is called heterodox . The six systems belonging to the former category are Nyāya, Vai?e?ika, Sā?khya, Yoga, Mīmā?sā, and Vedānta, which are also called the “Dar?anas.” Buddhism, Jainism, and Cārvāka (ma作者: Dna262 時(shí)間: 2025-3-29 07:56
Tuncer Cebeci,Lawrence W. Carrllowing is not a work of theology. That is, the intention is not to restate theological positions regarding eternal experience. Rather, the intention is to draw a series of questions together from disparate origins so as to bring into focus a philosophical perplexity, i.e., the mystery or puzzle of 作者: Institution 時(shí)間: 2025-3-29 15:21
A. Desoppery of interpretations. No one, for instance, would call something a democracy unless he thought that it was, or was related to, a system of government in which the people ruled, and no one would refuse to call something which he thought was a system of government in which the people ruled a democracy作者: oblique 時(shí)間: 2025-3-29 16:07
S. J. Shamrothly rooted in the language in which they are expressed, and receive within this language the core of their meaning (let us only recall the often expressed claim, according to which the basic features of Western philosophy reflect to a great extent the fundamental syntactic and semantic structure of a作者: 后退 時(shí)間: 2025-3-29 21:54 作者: Meander 時(shí)間: 2025-3-30 01:27 作者: 有發(fā)明天才 時(shí)間: 2025-3-30 04:21
M. Bouriot,L. F. Tsenartly explained by its ‘guilt by association’ with the theory of modernization, whose decline in popularity was precipitous. In the 1970s, however, the concept underwent something of a revival, this time in the political science subfield of communist studies. This subfield was always somewhat isolat作者: 美麗的寫 時(shí)間: 2025-3-30 09:26
G. S. Jones,C. Barbi,D. P. Telionist conditions, it is admissable to identify actual behavior with some reasonably well-fitting probabilistic description of it. What the authors call the confusion problem arises where such admissibility is implicitly assumed. Some examples of this problem are discussed, viz. those accruing from the d作者: 吝嗇性 時(shí)間: 2025-3-30 15:37 作者: 性冷淡 時(shí)間: 2025-3-30 17:02
A Review of Unsteady Turbulent Boundary-Layer Experimentslow facilities are described, and the related unsteady turbulent boundary- layer experiments are cataloged and discussed. The measurements that have been obtained in the various experiments are described, and a complete list of experimental results is presented. All the experiments that measured ins作者: 濃縮 時(shí)間: 2025-3-30 21:14
Dynamic Behavior of an Unsteady Turbulent Boundary Layergion, the boundary layer sees a linearly decreasing free-stream velocity. This velocity gradient oscillates in time, at frequencies ranging from zero to approximately the bursting frequency. Considerable detail is reported for a low-amplitude case, and preliminary results are given for a higher ampl作者: tympanometry 時(shí)間: 2025-3-31 03:09
Periodic Turbulent Pipe Flow at ‘High’ Frequencies of Oscillationcture of unsteady turbulent flows. First, experimental data obtained in a very simple unsteady flow namely periodic turbulent flow in a long circular pipe are presented. Secondly, a calculation procedure based on an existing one-equation steady flow turbulence model has been developed and used to pr作者: 顯微鏡 時(shí)間: 2025-3-31 07:16 作者: Altitude 時(shí)間: 2025-3-31 09:42 作者: Mammal 時(shí)間: 2025-3-31 13:40
Turbulence Modulated by a Coherent Shear Wave in a Wall Boundary Layernd constitute a dynamic equilibrium. The general aim of our investigations is to study this system by introducing small external perturbations and observing the resulting time-dependent departure from the equilibrium. The coherent shear wave used as perturbation throughout our experiments may either作者: Modify 時(shí)間: 2025-3-31 19:28
Experimental Study of Two- and Three-Dimensional Boundary Layer Separationn the circular cylinder the steady and unsteady surface pressures and shear stresses are measured in order to investigate the separation of a quasi two-dimensional, oscillating boundary layer. The boundary layer separation occurring on the inclined prolate spheroid is examined by means of similar ex
