单词 | Boundary layer |
例句 | 1 Like the rust on a junkyard car, that boundary layer could get only so thick. 2 Attempts to gain a clearer picture of this boundary layer floundered for several decades. 3 The upshot is that small areas of the boundary layer are turbulent. 4 Part of understanding how this boundary layer looks involves under-standing what it is made of. 5 Beyond the boundary layer, the motion is highly irregular. 6 The boundary layer correction is needed for viscid drag. 7 A systematic study of TiO 2 ceramic boundary layer capacitor ( BLC ) ismade. 8 With this simulation, the influence of fixed wall boundary layer on underbody was eliminated by and large. 9 The vapor liquid two boundary layer model is applied to predict local mass concentration of the non condensable gas, temperature profiles and velocity profiles in the boundary layer. 10 Three-dimensional turbulent boundary layer on the ground board is measured through the ground effect tests of a delta wing with aspect ratio 3. 11 Using the method of boundary layer correction and the differential inequality theory, we prove the existence theorem of solutions and construct the uniformly valid asymptotic expansions of . 12 In this article the nonparallel stability of the boundary layer is investigated effectively by using the parabolized stability equations (PSE). 13 A boundary layer theory of shell buckling, which includes the effects of nonlinear prebuckling deformations , large. 14 To solve this problem, a boundary layer suction test is carried out. 15 Eventually, all the non-turbulent regions have been absorbed and the boundary layer is wholly turbulent. 16 Here we present observations of a large summer minimum in ozone concentration in the unpolluted marine boundary layer of the Southern Hemisphere. 17 The temperature gradient just above the core would become much steeper, for example, causing a much hotter boundary layer. 18 These photographs were obtained by illuminating a very thin layer of a smoke-filled boundary layer. 19 Experiments like this opened geophysicists' eyes to the myriad ways this boundary layer could look. 20 A new method, rotation - assemble - average method, for the oscillatory boundary layer flow around a cylinder,[] was proposed. 21 The investigation shows that the diverterless supersonic inlet or bump inlet creates a high pressure area on the bump compression surface which pushes the air in boundary layer away from the inlet. 22 Aiming at the N-S disturber equation of 2D incompressible boundary layer on flat plate, a high precision compact finite difference method is proposed, which applied the spatial model. 23 The essential performance had been achieved by testing through changing boundary layer ejector pumping capacity, mixing chamber clapboard length, the counterpressure, main inlet mass flux and so on. 24 Diurnal variation takes on two-peak regularity, which is induced by the interactivity between intensity variations of sources and sinks and the stability degree of boundary layer. 25 The serious air pollution in Lanzhou city is closely related to property of atmospheric boundary layer. 26 As the tetrahedral grids exist in the majority area, the pentahedral prism grids are adopted near the boundary, which meets the SST model's requirement of mesh in the boundary layer. 27 It was proved that the tracking error converges to the prescribed boundary layer and all the signals in the closed-loop system were bounded . 28 The results indicated that three-dimensional open separation exists due to the cross flow around the afterbody, thicker boundary layer and the stronger adverse pressure gradient on the lower surface. 29 The high- aspect-ratio grids were commonly used in numerical simulations of the viscous boundary layer flows and the main calculation error was always correlated to the aspect ratio of the grids. 30 The percentage of the infrared and ultraviolet radiation to global radiation is larger than that above the atmospheric boundary layer, while the percentage of the visible radiation is less. 31 The measurement technique of constant temperature anemometry was used to study experimentally the mechanism of drag reduction in turbulent boundary layer with riblet surface. 32 A method is proposed to calculated the incompressible three-dimensional turbulent boundary layer on both wall surfaces of vaneless diffusers. 33 The energy boundary layer integral method is applied to the thermal developing region of laminar falling liquid film over a vertical plate of constant heat flux. 34 A 3D integral boundary layer approach is used and coupled with streamline method for determining vortex-layer-type flow separation. 35 The bell reducer provides the cyclone action and the boundary layer control. 36 In the second part, we study the existence of boundary layer solutions to the Boltzmann equation with specular reflection and reverse reflection boundary conditions respectively. 37 The dispersion of chemically reactive species in the atmospheric boundary layer. 38 The results indicate that separation and reattachment occur on the boundary layer of the rocket because of the shock impinging with sharp changes in static pressure and temperature. 39 Besides, auto - ignition occurs in the boundary layer at the lower wall in many cases. 40 The bottom boundary layer under cnoidal waves was studied by using Acoustic Doppler Velocimeter(ADV) technique in a laboratory flume. 41 Ground effect has the very tremendous influence on boundary layer thickness, and air drag with underhood enhances 12%. 42 The result shows that the new model can simulate the turbulent structure and the cloud microphysical processes of the marine stratocumulus-topped planetary boundary layer. 43 Aerosol measurements in slant range in atmospheric boundary layer are performed by using a mobile pollution detecting lidar system (AML-1). The corresponding data processing method is introduced. 44 A careful chaotic dynamic analysis on a transitional boundary layer shows the existence of the strange attractor in the total transitional processes. 45 The - micron particle deposition is due to the thermophoretic force in boundary layer under high flow temperature. 46 The separating flow in a turbulent boundary layer was surveyed in a 2-D curved-wall diffuser by employing 2-D laser Doppler velometer. 47 An aeroelastic model for a UHV power transmission tower and its conductors was designed according to the law of similarity and tested in an atmospheric boundary layer wind tunnel. 48 Boundary layer phenomena of third - order nonlinear equation is studied in this paper. 48 is a online sentence dictionary, on which you can find nice sentences for a large number of words. 49 It is shown that an oncoming gravity wave interacts with localized mountain lee waves induced by topography to generate a viscous instability wave within the boundary layer. 50 The weak nonlinear instability of a nonparallel boundary layer is studied by nonlinear parabolized stability equations(PSE). 51 In order to minimize the boundary layer effects, the nozzles were made as short as possible. 52 This demonstrates that for propulsion-airframe integration, this genus of inlet would be advantageous in keeping the stability of boundary layer coming from the forebody . 53 The parabolized stability equations (PSEs) for high speed flows, especially supersonic and hypersonic flows, are derived and used to analyze the nonparallel boundary layer stability. 54 An error matching principle, which is base on the error analysis of the computations with high-aspect-ratio grids, is derived for the finite difference simulation of the viscous boundary layer flows. 55 A large frame schlieren image technique is presented in the paper. The technique has been applied to visualization of the boundary layer transition on the surface of the cone in the hypersonic flow. 56 The examples presented clearly show the effect of nonparallel flow on boundary layer stability. 57 In super critical Reynolds number range, flow asymmetry is induced by both the asymmetric vortices and asymmetric boundary layer state. 58 The turbulent characteristics in convective boundary layer topped temperature inversion were numerically investigated in terms of large eddy simulation. 59 In this paper, The nonlinear resonant evolution of a two-dimensional fundamental wave and a pair of three-dimensional oblique subharmonic waves in a laminar boundary layer has been studied. 60 Vertex boundary layer phenomena of solution of singularly perturbed boundary value problem for a kind of fourth order elliptic equation is studied in this paper. 61 A Bathypelagic Ctenophore from the benthic boundary layer, which was found attached to seafloor by adhesive tentacles. 62 Based on parabolized stability equations, the stability of nonparallel boundary layer is calculated and analyzed by using recursion numerical method. 63 Surface or boundary layer. 64 HU Fei . Turbulence, Intermittency and Atmospheric Boundary Layer ( in Chinese ) . Beijing: Science Press, 1995. 65 It is found that significant radial variations of cracking temperature and cracking reaction rate exist due to boundary layer near the inner wall. 66 The boundary layer thickness is a function of the convection condition, in the melt. 67 The boundary layer flow control using dielectric barrier surface discharge plasma is simulated using Poisson's equation, drift-diffusion model and N-S equations. 68 Finally, the atmospheric boundary layer wind of south - east littoral of China was modeled by using RAMS. 69 It provides qualitative information mainly concerning the overall flow structure, such as the turbulent boundary layer separation, reattachment locations and the dimensionalities of the flow. 70 Two-dimensional incompressible turbulent boundary layer growth on the blades is calculated taking into account the blade surface curvature effect and also the rotational effect. 71 We apply the boundary layer directly by two-variable expansion method and deduce 1st-order asymptotic expansion of the solution. 72 The thickness of the boundary layer was estimated to propose the design constraint of the measure sensor. 73 As the air proceeds along the test section the boundary layer thickens. 74 As the bottom of the van-body truck is considerably high, the influence of the ground boundary layer can be ignored in the wind tunnel simulation of ground effect. 75 The paper presents the principle of boundary layer control for submerged vortex generators of concave shape. 76 When the relative gap height (the ratio of flap height to gap width) is in the range of 0 8-2 0, the mean pressure will reduced 30% if the flap height is smaller than the thickness of boundary layer. 77 The 3-D airflow structure, cold air dome, stratification structure of the boundary layer and their effects on the triggering and maintaining of the MCS were emphatically analyzed. 78 The evolution process of nocturnal radiation fogs and lower stratocumulus and their effects on the boundary layer structure are studied with the calculation of a model. 79 Helicity is the basic physical pattern for the maintenance of atmospheric activities. Boundary layer fluids, turbulences,[] severe storms and tropical cyclones are highly helical in their structures. 80 The overall diabatic heating is positive in the whole troposphere in summer, with the most intense heating located in the boundary layer. 81 The theoretical analysis and experimental results show that boundary layer separation will produce pressure drag. 82 Airplanes drag along a very thin shield of motionless air known as a boundary layer. 83 The interaction between multiphase liquid in boundary layer within pipe wall and the damage of protective erodent products film is analyzed. |
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