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Artigo Acesso aberto Revisado por pares

Danyale R. McLean, Samantha E. Scarneo‐Miller, Rebecca M. Lopez,

... for the 5 constructs: perceived susceptibility (\(\def\upalpha{\unicode[Times]{x3B1}}\)\(\def\upbeta{\unicode[Times]{x3B2}}\)\(\def\upgamma{\unicode[Times]{x3B3}}\)\(\def\updelta{\unicode[Times]{x3B4}}\)\(\def\upvarepsilon{\unicode[Times]{x3B5}}\)\(\def\upzeta{\unicode[Times]{x3B6}}\)\(\def\upeta{\unicode[Times]{x3B7}}\)\(\def\uptheta{\unicode[Times]{x3B8}}\)\(\def\upiota{\unicode[Times]{x3B9}}\)\(\def\upkappa{\unicode[Times]{x3BA}}\)\(\def\uplambda{\unicode[Times]{x3BB}}\)\(\def\ ...

Tópico(s): Infrared Thermography in Medicine

2020 - National Athletic Trainers' Association | Journal of Athletic Training

Artigo Acesso aberto Revisado por pares

Brad Rodgers, Terence Tao,

... t}(z):=\int _{0}^{\infty }e^{tu^{2}}\unicode[STIX]{x1D6F7}(u)\cos (zu)\,du,\end{eqnarray}$$ where $\unicode[STIX]{x1D6F7}$ is the super-exponentially decaying function $$\begin{eqnarray}\unicode[STIX]{x1D6F7}(u):=\mathop{\sum }_{n=1}^{\infty }(2\unicode[STIX]{x1D70B}^{2}n^{4}e^{9u}-3\unicode[STIX]{x1D70B}n^{2}e^{5u})\exp (-\unicode[STIX]{x1D70B}n^{2}e^{4u}).\end{eqnarray}$$ Newman showed that there exists a finite constant $\unicode[STIX]{x1D6EC}$ (the de Bruijn–Newman constant ) such ... t}$ are all real precisely when $t\geqslant \unicode[STIX]{x1D6EC}$ . The Riemann hypothesis is equivalent to ...

Tópico(s): Black Holes and Theoretical Physics

2020 - Cambridge University Press | Forum of Mathematics Pi

Artigo Acesso aberto Revisado por pares

Toni M. Torres-McGehee, Dawn M. Emerson, Kelly Pritchett, Erin Moore, Allison Smith, Nancy A. Uriegas,

... differences between LEA and sport type (\(\def\upalpha{\unicode[Times]{x3B1}}\)\(\def\upbeta{\unicode[Times]{x3B2}}\)\(\def\upgamma{\unicode[Times]{x3B3}}\)\(\def\updelta{\unicode[Times]{x3B4}}\)\(\def\upvarepsilon{\unicode[Times]{x3B5}}\)\(\def\upzeta{\unicode[Times]{x3B6}}\)\(\def\upeta{\unicode[Times]{x3B7}}\)\(\def\uptheta{\unicode[Times]{x3B8}}\)\(\def\upiota{\unicode[Times]{x3B9}}\)\(\def\upkappa{\unicode[Times]{x3BA}}\)\(\def\ ...

Tópico(s): Physical Activity and Health

2020 - National Athletic Trainers' Association | Journal of Athletic Training

Artigo Revisado por pares

Shoudong Man,

... set $V$ and the edge set $E$ . Let $\unicode[STIX]{x1D6E5}$ be the usual graph Laplacian. Consider ... nonlinear Schrödinger equation of the form $$\begin{eqnarray}-\unicode[STIX]{x1D6E5}u-\unicode[STIX]{x1D6FC}u=f(x,u),\quad u\ ... R}$ is a nonlinear real-valued function and $\unicode[STIX]{x1D6FC}$ is a parameter. We prove an ... satisfies the curvature-dimension type inequality $CD(m,\unicode[STIX]{x1D709})$ . Then by using the Poincaré–Sobolev ... nontrivial solution to the nonlinear Schrödinger equation if $\unicode[STIX]{x1D6FC}<2\unicode[STIX]{x1D706}_{1}^{2}/ ...

Tópico(s): Spectral Theory in Mathematical Physics

2020 - Cambridge University Press | Bulletin of the Australian Mathematical Society

Artigo Revisado por pares

Dongfeng Zhang, Junxiang Xu,

... quasi-periodic system: $$\begin{eqnarray}{\dot{x}}=(A+\unicode[STIX]{x1D716}P(t,\unicode[STIX]{x1D716}))x+\unicode[STIX]{x1D716}g(t,\unicode[STIX]{x1D716})+h(x,t,\unicode[STIX]{x1D716}),\quad x\in \mathbb{R}^{d},\ ... d\times d$ constant matrix of elliptic type, $\unicode[STIX]{x1D716}g(t,\unicode[STIX]{x1D716})$ is a small perturbation with $\unicode[STIX]{x1D716}$ as a small parameter, $h(x,t,\unicode[STIX]{x1D716})=O(x^{2})$ as $x\rightarrow ... analytic quasi-periodic in $t$ with basic frequencies $\unicode[STIX]{x1D714}=(1,\unicode[STIX]{x1D6FC})$ , where $\unicode[ ...

Tópico(s): Advanced Differential Equations and Dynamical Systems

2020 - Cambridge University Press | Ergodic Theory and Dynamical Systems

Artigo Revisado por pares

Ming‐Xiang Zhao, Wei‐Xi Huang, Chunxiao Xu,

... and the control parameters, namely, the angular frequency $\unicode[STIX]{x1D714}^{+}=\unicode[STIX]{x1D714}\unicode[STIX]{x1D708}/u_{\unicode[STIX]{x1D70F}0}^{2}$ and the streamwise wavenumber $k_{x}^{+}=k_{x}\unicode[STIX]{x1D708}/u_{\unicode[STIX]{x1D70F}0}$ , is obtained at the oscillation amplitude of ${A^{+}=A/u}_{\unicode[STIX]{x1D70F}0}=16$ , where $u_{\unicode[STIX]{x1D70F}0}$ is the friction velocity of the uncontrolled flow and $\unicode[STIX]{x1D708}$ is the kinematic viscosity of the ...

Tópico(s): Wind and Air Flow Studies

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

David G. Schaeffer, T. Barker, Daisuke Tsuji, Pierre A. Gremaud, Michael Shearer, J. M. N. T. Gray,

... stiffness. Such flows have been modelled with the $\unicode[STIX]{x1D707}(I),\unicode[STIX]{x1D6F7}(I)$ -rheology, which postulates that the bulk friction coefficient $\unicode[STIX]{x1D707}$ (i.e. the ratio of the ... to the pressure) and the solids volume fraction $\unicode[STIX]{x1D719}$ are functions of the inertial number $I$ only. Although the $\unicode[STIX]{x1D707}(I),\unicode[STIX]{x1D6F7}(I)$ -rheology has been validated in ... formulated. In this paper an alternative to the $\unicode[STIX]{x1D707}(I),\unicode[STIX]{x1D6F7}(I)$ -rheology ...

Tópico(s): Soil and Unsaturated Flow

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

Tomoaki Watanabe, Carlos B. da Silva, Koji Nagata,

The non-dimensional dissipation rate $C_{\unicode[STIX]{x1D700}}=\unicode[STIX]{x1D700}L/u^{\prime 3}$ , where $\unicode[STIX]{x1D700}$ , $L$ and $u^{\prime }$ are the viscous energy dissipation ... and turbulent sublayer regions. The computation of $C_{\unicode[STIX]{x1D700}}$ is made possible by the introduction ... dimensional dissipation rate and turbulent Reynolds number $Re_{\unicode[STIX]{x1D706}}$ vary in space within the TNTI layer, where two relations are observed: $C_{\unicode[STIX]{x1D700}}\sim Re_{\unicode[STIX]{x1D706}}^{-1}$ ...

Tópico(s): Combustion and flame dynamics

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Erik Lindborg,

... Burgers turbulence, where the shock amplitude scales as $(\unicode[STIX]{x1D716}d)^{1/3}$ and the $p$ th-order structure function scales as $(\unicode[STIX]{x1D716}d)^{p/3}r/d$ , $\unicode[STIX]{x1D716}$ being the mean energy dissipation per ... the separation distance. However, for the acoustic field, $\unicode[STIX]{x1D716}$ should be replaced by $\unicode[STIX]{x1D716}+\unicode[STIX]{x1D712}$ , where $\unicode[STIX]{x1D712}$ is associated with entropy production due ... third-order longitudinal structure function scales as $\langle \unicode[STIX]{x1D6FF}u_{r}^{3}\rangle =-C(\unicode[ ...

Tópico(s): Meteorological Phenomena and Simulations

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Yi-Chao Xie, Bu-Ying-Chao Cheng, Yun-Bing Hu, Ke‐Qing Xia,

... the root-mean-square (r.m.s.) temperature $\unicode[STIX]{x1D70E}_{T}$ and the r.m.s. velocity $\unicode[STIX]{x1D70E}_{w}$ in the bulk of Rayleigh– ... find that, once scaled by the convective temperature $\unicode[STIX]{x1D703}_{\ast }$ , the value of $\unicode[STIX]{x1D70E}_{T}$ at the cell centre is a constant ( $\unicode[STIX]{x1D70E}_{T,c}/\unicode[STIX]{x1D703}_{\ast }\approx 0.85$ ) over a ... cell. A constant close to unity suggests that $\unicode[STIX]{x1D703}_{\ast }$ is a proper measure of ... in the core region. On the other hand, $\unicode[STIX]{x1D70E}_{w,c}/w_{\ast }$ , the vertical ...

Tópico(s): Wind and Air Flow Studies

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Maulik Shah, Volkert van Steijn, Chris R. Kleijn, Michiel T. Kreutzer,

... by two parameters: the strength of thermal fluctuations, $\unicode[STIX]{x1D703}$ , and the strength of drainage, $\unicode[STIX]{x1D705}$ . For strong drainage ( $\unicode[STIX]{x1D705}\gg \unicode[STIX]{x1D705}_{tr}$ ), we find that the film ... the rupture time, $t_{r}$ , solely depends on $\unicode[STIX]{x1D705}$ , according to the earlier reported scaling, $t_{r}\sim \unicode[STIX]{x1D705}^{-10/7}$ . By contrast, for weak drainage ( $\unicode[STIX]{x1D705}\ll \unicode[STIX]{x1D705}_{tr}$ ), the film ruptures at a ... dominated regime, the rupture time solely depends on $\unicode[STIX]{x1D703}$ as $t_{r}\sim -(1/\unicode[ ...

Tópico(s): Surface Modification and Superhydrophobicity

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

Xi Chen, Fazle Hussain, Zhen-Su She,

... analytic prediction of non-universal Reynolds number ( $Re_{\unicode[STIX]{x1D70F}}$ ) scaling transition of the maximum TMC ... prime }}_{p}^{+}$ ) displays a scaling transition from $Re_{\unicode[STIX]{x1D70F}}^{3/7}$ ( $Re_{\unicode[STIX]{x1D70F}}^{-6/7}$ ) to $Re_{\unicode[STIX]{x1D70F}}^{3/5}$ ( $Re_{\unicode[STIX]{x1D70F}}^{-3/5}$ ) in turbulent boundary layer, in sharp contrast to that from $Re_{\unicode[STIX]{x1D70F}}^{1/3}$ ( $Re_{\unicode[STIX]{x1D70F}}^{-2/3}$ ) to $Re_{\unicode[STIX]{x1D70F}}^{1/2}$ ( $Re_{\unicode[STIX]{x1D70F}}^{- ...

Tópico(s): Wind and Air Flow Studies

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

Alessio Roccon, Francesco Zonta, Alfredo Soldati,

... a thin layer of less-viscous fluid (viscosity $\unicode[STIX]{x1D702}_{1}$ ) from a main layer of a more-viscous fluid (viscosity $\unicode[STIX]{x1D702}_{2}$ ). To single out the effect ... having the same density and the same viscosity ( $\unicode[STIX]{x1D706}=\unicode[STIX]{x1D702}_{1}/\unicode[STIX]{x1D702}_{2}=1$ ), and we lower the viscosity of the lubricating layer down to $\unicode[STIX]{x1D706}=\unicode[STIX]{x1D702}_{1}/\unicode[STIX]{x1D702}_{2}=0.25$ , which corresponds to ... when the two fluids have the same viscosity ( $\unicode[STIX]{x1D706}=1$ ), and corresponds to the relaminarization ...

Tópico(s): Lattice Boltzmann Simulation Studies

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Qi Wang, Quan Zhou, Zhen‐Hua Wan, De‐Jun Sun,

... 7}$ to $10^{10}$ . The density inversion parameter $\unicode[STIX]{x1D703}_{m}$ varies from 0 to 0. ... top and bottom thermal boundary-layer thicknesses ( $F_{\unicode[STIX]{x1D706}}=\unicode[STIX]{x1D706}_{t}^{\unicode[STIX]{x1D703}}/\unicode[STIX]{x1D706}_{b}^{\unicode[STIX]{x1D703}}$ ) increases with increasing $\unicode[STIX]{x1D703}_{m}$ , and the relationship between $F_{\unicode[STIX]{x1D706}}$ and $\unicode[STIX]{x1D703}_{m}$ seems to be independent of $ ...

Tópico(s): Wind and Air Flow Studies

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Oliver McEnteggart, Jason Miller, Wei Qian,

... a simple set of geometric conditions on curves $\unicode[STIX]{x1D702}$ , $\widetilde{\unicode[STIX]{x1D702}}$ in $\mathbf{H}$ from $0$ to $\infty$ so that if $\unicode[STIX]{x1D711}:\mathbf{H}\rightarrow \mathbf{H}$ is a homeomorphism which is conformal off $\unicode[STIX]{x1D702}$ with $\unicode[STIX]{x1D711}(\unicode[STIX]{x1D702})=\widetilde{\unicode[STIX]{x1D702}}$ then $\unicode[STIX]{x1D711}$ is a conformal automorphism of $\mathbf{ ... gravity (LQG). In particular, we show that if $\unicode[STIX]{x1D702}$ is a non-space-filling $\text{ ...

Tópico(s): Geometric Analysis and Curvature Flows

2019 - Cambridge University Press | Journal of the Institute of Mathematics of Jussieu

Artigo Acesso aberto Revisado por pares

José Manuel Gordillo, Javier Rodríguez‐Rodríguez,

... jet ejection process, is determined by the wavelength $\unicode[STIX]{x1D706}^{\ast }$ of the smallest capillary wave ... the associated radial velocities increase, with the wavelength $\unicode[STIX]{x1D706}^{\ast }$ . We show that $\unicode[STIX]{x1D706}^{\ast }$ increases with viscosity as $\unicode[STIX]{x1D706}^{\ast }\propto Oh^{1/2}$ for $Oh\lesssim O(0.01)$ , with $Oh=\unicode[STIX]{x1D707}/\sqrt{\unicode[STIX]{x1D70C}R\unicode[STIX]{x1D70E}}$ the Ohnesorge number, $R$ the bubble radius and $\unicode[STIX]{x1D70C}$ , $\unicode[STIX]{x1D707}$ and $\unicode[STIX]{ ...

Tópico(s): Fluid Dynamics Simulations and Interactions

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Charlene Kalle, Derong Kong, Niels Langeveld, Wenxia Li,

For $\unicode[STIX]{x1D6FD}\in (1,2]$ the $\unicode[STIX]{x1D6FD}$ -transformation $T_{\unicode[STIX]{x1D6FD}}:[0,1)\rightarrow [0,1)$ is defined by $T_{\unicode[STIX]{x1D6FD}}(x)=\unicode[STIX]{x1D6FD}x\hspace{0.6em}({\rm mod}\ ... 1)$ . For $t\in [0,1)$ let $K_{\unicode[STIX]{x1D6FD}}(t)$ be the survivor set of $T_{\unicode[STIX]{x1D6FD}}$ with hole $(0,t)$ given by $$\begin{eqnarray}K_{\unicode[STIX]{x1D6FD}}(t):=\{x\in [0,1):T_{\unicode[STIX]{x1D6FD}}^{n}(x)\not \in (0,t)\ ... this paper we characterize the bifurcation set $E_{\unicode[STIX]{x1D6FD}}$ of all parameters $t\in [0, ...

Tópico(s): Advanced Topology and Set Theory

2019 - Cambridge University Press | Ergodic Theory and Dynamical Systems

Artigo Acesso aberto Revisado por pares

Xiaojue Zhu, Richard J. A. M. Stevens, Olga Shishkina, Roberto Verzicco, Detlef Lohse,

... regular, mono-scale, surface roughness, the scaling exponent $\unicode[STIX]{x1D6FD}$ in the relationship between the Nusselt ... and the Rayleigh number $Ra$ , $Nu\sim Ra^{\unicode[STIX]{x1D6FD}}$ can be ${\approx}1/2$ locally, ... to ensure that the thermal boundary layer thickness $\unicode[STIX]{x1D706}_{\unicode[STIX]{x1D703}}$ is comparable to the roughness height. However, at even larger $Ra$ , $\unicode[STIX]{x1D706}_{\unicode[STIX]{x1D703}}$ becomes thin enough to follow the irregular surface and $\unicode[STIX]{x1D6FD}$ saturates back to the value for ...

Tópico(s): Particle Dynamics in Fluid Flows

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

L. Djenidi, R. A. Antonia, S. L. Tang,

... third-order moments of the longitudinal velocity increment, $(\unicode[STIX]{x1D6FF}u)$ . Once the normalised equations and ... measurements. It is found that the fluid viscosity, $\unicode[STIX]{x1D708}$ , and the mean kinetic energy dissipation rate, $\overline{\unicode[STIX]{x1D716}}$ (the overbar denotes spatial and/or ... of the skewness and the flatness factor of $(\unicode[STIX]{x1D6FF}u)$ and shows that these distributions ... ranges, as the Taylor microscale Reynolds number $Re_{\unicode[STIX]{x1D706}}$ increases indefinitely. Also, the skewness and ...

Tópico(s): Particle Dynamics in Fluid Flows

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Antoine Martin, Maria Eletta Negretti, E. J. Hopfinger,

... currents moving onto sloping boundaries with slope angles $\unicode[STIX]{x1D703}=7^{\circ }$ , $10^{\circ }$ and $15^{\ ... profiles, characterized by the Richardson number $J_{i}=\unicode[STIX]{x1D6FF}_{i}{g_{0}}^{\prime }/\unicode[STIX]{x0394}u_{i}^{2}$ , where $\unicode[STIX]{x1D6FF}_{i}$ , $\unicode[STIX]{x0394}u_{i}$ and $g_{0}^{\prime }$ ... by an overall acceleration parameter $\overline{T_{a}}=(\unicode[STIX]{x1D6FF}_{i}/U_{i})((U_{c}-U_{ ... first order, is given by $J_{i}\sin \unicode[STIX]{x1D703}$ , where $U_{c}$ and $x_{c}$ ... J_{c}$ decreases with increasing $J_{i}$ (increasing $\unicode[STIX]{x1D6FF}_{i}/h_{i}$ ) which is due ...

Tópico(s): Fluid Dynamics and Turbulent Flows

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

Thomasina V. Ball, Herbert E. Huppert,

... obtain useful formulae for the time of approach, $\unicode[STIX]{x1D70F}(p)$ , for a number of different ... that for any initial shape of volume $V,\unicode[STIX]{x1D70F}\propto 1/(\unicode[STIX]{x1D6FD}V^{1/3}\unicode[STIX]{x1D6FE}_{0}^{8/3}p)$ (as $p\downarrow 0$ ), where $\unicode[STIX]{x1D6FD}=g\unicode[STIX]{x0394}\unicode[STIX]{x1D70C}/(3\unicode[STIX]{x1D707})$ , with $g$ representing the acceleration due to gravity, $\unicode[STIX]{x0394}\unicode[STIX]{x1D70C}$ the density difference ...

Tópico(s): Enhanced Oil Recovery Techniques

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Adolfo Vázquez-Quesada, Pep Español, R. I. Tanner, Marco Ellero,

... conditions (i.e. up to solid volume fraction $\unicode[STIX]{x1D719}=0.3$ ) is explored. It is ... the macroscopic imposed shear rate), relative suspension viscosities $\unicode[STIX]{x1D702}_{r}$ exhibit a plateau at every ... of the underlying viscoelastic matrix. Under dilute conditions ( $\unicode[STIX]{x1D719}=0.05$ ), numerical results for $\unicode[STIX]{x1D702}_{r}$ agree quantitatively with experimental data in both the $De$ and $\unicode[STIX]{x1D719}$ dependences. Even under dilute conditions, simulations ... values. By increasing the solid volume fraction towards $\unicode[STIX]{x1D719}=0.3$ , despite the fact that ...

Tópico(s): Material Dynamics and Properties

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

Naveed Hussain, Stephen S.‐T. Yau, Huaiqing Zuo,

... moduli algebra $A(V):={\mathcal{O}}_{n}/(f,\unicode[STIX]{x2202}f/\unicode[STIX]{x2202}x_{1},\ldots ,\unicode[STIX]{x2202}f/\unicode[STIX]{x2202}x_{n})$ , that is, $L(V)=\ ... L(V)$ is finite dimensional and its dimension $\unicode[STIX]{x1D706}(V)$ is called the Yau number. ... of $L^{k}(V)$ , which we denote by $\unicode[STIX]{x1D706}^{k}(V)$ . In particular, $L^{0}( ... algebra, that is, $L^{0}(V)=L(V),\unicode[STIX]{x1D706}^{0}(V)=\unicode[STIX]{x1D706}(V)$ . These numbers $\unicode[STIX]{x1D706}^{k}(V)$ are new numerical analytic ...

Tópico(s): Geometry and complex manifolds

2019 - Cambridge University Press | Journal of the Australian Mathematical Society

Artigo Revisado por pares

A. R. Premlata, Hsien-Hung Wei,

... with the time-varying Stokes boundary layer thickness $\unicode[STIX]{x1D6FF}$ in competition with the slip length $\unicode[STIX]{x1D706}$ . Here we revisit the unsteady motion ... high-frequency constant force plateau of $O(a/\unicode[STIX]{x1D706})$ much greater than the steady drag due to a constant shear stress caused by $\unicode[STIX]{x1D6FF}$ much thinner than $\unicode[STIX]{x1D706}$ and (ii) the persistence of the ... the frequency until the slip–stick transition point $\unicode[STIX]{x1D6FF}\sim \unicode[STIX]{x1D706}$ , beyond which $\ ...

Tópico(s): Micro and Nano Robotics

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Spencer Backman, Matthew Baker, Chi Ho Yuen,

... and then define a family of combinatorial bijections $\unicode[STIX]{x1D6FD}_{\unicode[STIX]{x1D70E},\unicode[STIX]{x1D70E}^{\ast }}$ between ${\mathcal{G}}(M)$ and bases of $M$ . (Here $\unicode[STIX]{x1D70E}$ (respectively $\unicode[STIX]{x1D70E}^{\ast }$ ) is an acyclic signature of ... give a geometric interpretation of each such map $\unicode[STIX]{x1D6FD}=\unicode[STIX]{x1D6FD}_{\unicode[STIX]{x1D70E},\unicode[STIX]{x1D70E}^{\ast }}$ in terms of zonotopal subdivisions ...

Tópico(s): Graph theory and applications

2019 - Cambridge University Press | Forum of Mathematics Sigma

Artigo Acesso aberto Revisado por pares

Sarma L. Rani, Rohit Dhariwal, Donald L. Koch,

... at a Taylor micro-scale Reynolds number $Re_{\unicode[STIX]{x1D706}}=77.76$ for three Froude numbers $ ... numbers in the range $0.01\leqslant St_{\unicode[STIX]{x1D702}}\leqslant 0.2$ were tracked in ... the DNS and theory values for the exponent $\unicode[STIX]{x1D6FD}$ characterizing the power-law dependence of clustering on separation. The $\unicode[STIX]{x1D6FD}$ from the $Fr=0.006$ DNS ... predicts that the spherical harmonic coefficient scales with $\unicode[STIX]{x1D6FD}(=\unicode[STIX]{x1D6FD}_{2}St_{\unicode[ ...

Tópico(s): Aeolian processes and effects

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Acesso aberto Revisado por pares

Michael Hoff, Uwe Harlander,

... Couette flow, with a fixed radius ratio of $\unicode[STIX]{x1D702}=r_{i}/r_{o}=1/3$ ... difference between cases where the Rossby number $Ro=(\unicode[STIX]{x1D6FA}_{i}-\unicode[STIX]{x1D6FA}_{o})/\unicode[STIX]{x1D6FA}_{o}>0$ and cases with $Ro<0$ , where $\unicode[STIX]{x1D6FA}_{i}$ and $\unicode[STIX]{x1D6FA}_{o}$ are the inner- and outer- ... m$ can be seen as the rotation rate $\unicode[STIX]{x1D6FA}_{0}$ increases, but $Ro<0$ gives $ ... of the critical $Ro$ with Ekman number $E=\unicode[STIX]{x1D708}/(\unicode[STIX]{x1D6FA}_{o}\,d^{2})$ , ...

Tópico(s): Geology and Paleoclimatology Research

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

Wagih Abu Rowin, Sina Ghaemi,

... a root-mean-square roughness of $0.29\unicode[STIX]{x1D706}$ and an average texture width of $5.0\unicode[STIX]{x1D706}$ , where $\unicode[STIX]{x1D706}=17~\unicode[STIX]{x03BC}\text{m}$ is the inner flow ... with a streamwise slip length of $5.9\unicode[STIX]{x1D706}$ and a spanwise slip length of $5.9\unicode[STIX]{x1D706}$ . As a result, both the near- ... streamwise-elongated regions with a length of $800\unicode[STIX]{x1D706}$ and a spanwise width of $300\unicode[STIX]{x1D706}$ . The plastron dimensions correspond to the ...

Tópico(s): Fluid Dynamics and Vibration Analysis

2019 - Cambridge University Press | Journal of Fluid Mechanics

Artigo Revisado por pares

Manuel Gamero-Castaño, M. Magnani,

... all other physical properties such as the density $\unicode[STIX]{x1D70C}$ , surface tension $\unicode[STIX]{x1D6FE}$ and viscosity $\unicode[STIX]{x1D707}$ are kept constant and equal to ... is a function of both the dielectric constant $\unicode[STIX]{x1D700}$ of the liquid and its Reynolds number, $Re=(\unicode[STIX]{x1D70C}\unicode[STIX]{x1D700}_{o}\unicode[STIX]{x1D6FE}^{2}/\unicode[STIX]{x1D707}^{3}K)^{1/3}$ . This result ... a minimum flow rate that depends only on $\unicode[STIX]{x1D700}$ and/or is marginally affected by $ ...

Tópico(s): Fluid Dynamics and Heat Transfer

2019 - Cambridge University Press | Journal of Fluid Mechanics