Aerodynamics :: Aeronautics

Physics of Fluids: All Topics

Optimal shapes for best draining
J. D. Sherwood The container shape that minimizes the volume of draining fluid remaining on the walls of the container after it has been emptied from its base is determined. The film of draining fluid is assumed to wet the walls of the container, and is sufficiently thin so that its curvature may be neglected. Sur ... [Phys. Fluids 21, 113102 (2009)] published Wed Nov 4, 2009.
A unified sweep-stick mechanism to explain particle clustering in two- and three-dimensional homogeneous, isotropic turbulence
S. W. Coleman and J. C. Vassilicos Our work focuses on the sweep-stick mechanism of particle clustering in turbulent flows introduced by Chen et al. [L. Chen, S. Goto, and J. C. Vassilicos, Turbulent clustering of stagnation points and inertial particles, J. Fluid Mech. 553, 143 (2006)] for two-dimensional (2D) inverse cascading homo ... [Phys. Fluids 21, 113301 (2009)] published Tue Nov 3, 2009.
The friction of a mesh-like super-hydrophobic surface
Anthony M. J. Davis and Eric Lauga When a liquid droplet is located above a super-hydrophobic surface, it only barely touches the solid portion of the surface, and therefore slides very easily on it. More generally, super-hydrophobic surfaces have been shown to lead to significant reduction in viscous friction in the laminar regime, ... [Phys. Fluids 21, 113101 (2009)] published Tue Nov 3, 2009.
Effect of electric field on the stability of an oscillatory contaminated film flow
Arghya Samanta The stability of the viscous liquid film on an oscillating plane is investigated in the presence of both insoluble surfactant on the film surface and uniform electric field, acting normal to the plane. In this problem main motivation is to study the combine effect of surfactant and electric field on ... [Phys. Fluids 21, 114101 (2009)] published Tue Nov 3, 2009.
Convective instabilities in liquid layers with free upper surface under the action of an inclined temperature gradient
A. I. Mizev and D. Schwabe We present the results of an experimental study of convective instabilities in a horizontal liquid layer with free upper surface under the action of an inclined temperature gradient, i.e., when horizontal and vertical temperature gradients are applied at the same time. Silicone oil of 10 cSt (Prandt ... [Phys. Fluids 21, 112102 (2009)] published Tue Nov 3, 2009.
Negatively buoyant starting jets
C. Marugan-Cruz, J. Rodriguez-Rodriguez, and C. Martinez-Bazan The initial development of negatively buoyant jets has been investigated experimentally and numerically, focusing on the role played by gravity in the evolution of the leading vortex ring. Under the experimental conditions considered in this work, the densimetric Froude number, Fr=rhoU/[(rhorho)gD], ... [Phys. Fluids 21, 117101 (2009)] published Mon Nov 2, 2009.

 

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Compressible Aerodynamics Calculator - Computes the standard relations for compressible flow of a perfect gas. Isentropic flow relations, normal shock relations, and oblique shock relations can be calculated.

Advanced Aero/Hydrodynamics - Course materials from University of Vermont.

Antibubbles - An antibubble is a ball of liquid surrounded by a thin film of air. Pictures, documentation and links.

Calculations and Equations of Fluid Mechanics - An online fluid dynamics calculator.
Meta Description: [ Calculations for pressure pipes, open channels, ground water, hydrology. Software, formulas, equations ]

404 Cinema Particle Image Velocimetry Investigation of Turbulence and Combustion - High-speed movies of time-evolving velocity fields in turbulent and combusting gas flows are obtained using a newly developed kilohertz frame-rate cinema Particle Image Velocimetry system.
Meta Description: [ High-speed ]

Classical Fluid Mechanics Problem Solutions - Solutions to Classical Fluid Flow Momentum Transfer Problems
Meta Description: [ Classical fluid mechanics problems and problem solutions in transport phenomena ]

Convection in a box. - Experiments with smoke inside a plexiglass box challenge convectional wisdom. Smoke can unexpectedly act heavier than air and then spontaneously reverse.

eFluids - A one-stop internet resource for fluid dynamics and flow engineering professionals
Meta Description: [ We are a specialty web portal designed to serve as a one-stop web information resource for anyone working in the areas of flow engineering, fluid mechanics, education and directly related topics. ]

eMicroNano - A free one-stop information resource for bio-, micro-, and nano-fluidic systems.
Meta Description: [ mems, micro, nano, bio, microfluidics, nano fluids, micro fluids, bio fluids, micro-electro mechanical systems. ]

404 Engineers Edge - fluid flow, hydraulic and pneumatic - Fluids section of engineering directory. Provides definitions and practical applications.

ePower Propulsion and Combustion - A one-stop resource for professionals working in propulsion, power, and combustion fields.
Meta Description: [ Power, Propulsion, propulsion and power, Gas Turbines, Rocket Propulsion, Space Propulsion, Automotive Propulsion, Electrical Propulsion, Space Power, Aerospace, NASA ]

ERCOFTAC - European Research Community on Fluids, Turbulence and Combustion. Portal to Fluid Dynamics database resources. Free registration required.

Flow optimization - The site demonstrates a method of flow visualisation by using an optically active liquid. The advantages of the method and some example applications are described.
Meta Description: [ This technology is based on the visualisation of flow by means of an optically active liquid which is penetrated by radiation with special light. The methodology developed allows to decisively increase energetic characteristic and the acoustic characteristic as well as the vibration and other c... ]

Fluid dynamics course material - 139 pages script at undergraduate level on the fundamental aspects of non-relativistic fluid dynamics in pdf format.
Meta Description: [ Course information for MAS209, Fluid Dynamics, at Queen Mary, University of London ]

500 Fluid Mechanics - Site contains a collection of tutorials, javascript calculators, and links of interest to those doing teaching and research in fluid mechanics, wave propagation, applied physics, and mechanical and aerospace engineering.

Fluid Power Net International (FPN) - Provides information and links to fluid power (hydraulics pneumatics).
Meta Description: [ FPN International (Fluid Power Net) is an International Fluid Power Research Network of National FPN sites which provide information about, and links to world-wide research and industrial activities in the field of fluid power (hydraulic & pneumatic power transmission and control). The FPN websit... ]

Fluid Salients in Air, Water, and Solids - Site discusses fluid salients as a cause for ocean wave formation, cloud formation and geologic structure formation. Several small physical models of salients are also discussed.

Funneller - Single Vortex Technology - Introduction to a propulsion technique that utilizes a rotating cone.
Meta Description: [ digital food scale tanita ice cube tray baking supply kitchen ]

500 History of Fluid Mechanics, Mathematics, and Science - Links to historical information for mathematics, science and fluid mechanics.
Meta Description: [ Homepage for Mark S. Cramer. Here you will find links to fluid mechanics, history of science, mathematics, and especially fluid mechanics, automotive aerodynamics, bike aerodynamics, bicycle racing, dense gases, superfluid helium, gasdynamics, shock waves. ]

Incompressible Navier-Stokes equations reduce to Bernoulli's Law - Integrates the vector Navier-Stokes equation to obtain a vector form of Bernoulli's law. Provides interpretation and a mathematical basis for doing calculations.
Meta Description: [ Hypercomplex analytic function theory is used to integrate the incompressible Navier-Stokes equations to a simple, vector-valued Bernoulli's Law. The implications for aerodynamic and fluid dynamic calculations are substantial. ]

Irrotational Plane Flows of an Inviscid Fluid - Lecture for those who need a refresher course on hydrodynamics fundamentals.

500 Navier Stokes Equations - A brief summary of the Navier-Stokes equations governing fluid dynamics and fluid mechanics.
Meta Description: [ These notes present the Navier Stokes equations, which are basis for the study of fluid mechanics, aerodynamics, hydrodynamics, and gasdynamics. I simply present the Navier Stokes equations without derivation. Other features will include Bernoulli equations, vorticity theorems, shock waves, t... ]

PivNet 2 - An introduction to the European Collaboration on Particle Image Velocimetry. Links to participating partners, information about courses, conferences and literature.

The Effects of Water Hammer And Pulsations - Explanation of water hammer and pulsation inclusive the formula used to calculate the pressure increase.
Meta Description: [ explanation of water hammer and pulsation and how it relates to valves. ]

Topographical Measurements of Water Waves - An overview of existing methods for measuring the shape of water waves. Further a repercussionless system for water height measurements at a 3 x 3 matrix is described. 7.9 MB in size.

404 Turbulent Scalar Transport - Heat and mass transfer studies using direct numerical simulations of turbulent channel, Couette, and shear flows as well as experiments with tube banks.

University of Colorado Flow Visualization Course - A course in the physics and art of fluid flow for engineering and fine arts photography students at the University of Colorado, Boulder. The student gallery has a wide assortment of images ranging from soap films to clouds.
Meta Description: [ Flow visualization techniques from engineering and artistic perspectives. ]