Draining Fluid Lungs

This file illustrates the effect of a properly designed proportional integral controller on the performance of Electrohydraulic servoactuators. The description of construction, operation and mathematical modeling of the Electrohydraulic servoactuator and steps of design of the PI controller are...

The electrohydraulic servovalves are mostly multi-stage. They incorporate, mostly, a first stage which serves to convert the command current into a proportional pressure difference. For more details about the steady state and transient response calculation, please refer to my book:M Galal Rabie,...

Lumped Parameter Model of Hydraulic Transmission lineHere is a lumped parameter model of a hydraulic transmission line.The line is modeled by one, two, three, four and ten lump models.The simulation program presents the transient response in addition to experimental results.The theory is...


Platforms: Matlab

The electromagnetic torque motors are widely used in electrohydraulic servovalves. They serve to convert the control current into a proportional torque. For more details about the steady state and transient response calculation, please refer to my book:M Galal Rabie, Fluid Power Engineering,...


Platforms: Matlab

Stokesian Dynamics, a method developed by Brady and Bossis in the 80s, simulates the 3D motion of hydrodynamically interacting spheres at low Reynolds numbers. This program was originally written by Professor Ron Phillips during his PhD thesis at MIT in 1989. The code was adapted from Fortran 77...


Platforms: Matlab

This file illustrates the effect of a properly designed proportional integral controller on the performance of Electrohydraulic servoactuators. The description of construction, operation and mathematical modeling of the Electrohydraulic servoactuator and steps of design of the PI controller are...


Platforms: Matlab

The electrohydraulic servovalves are mostly multi-stage. They incorporate, mostly, a first stage which serves to convert the command current into a proportional pressure difference. For more details about the steady state and transient response calculation, please refer to my book:M Galal Rabie,...


Platforms: Matlab

Engineers, scientists, and financial analysts frequently use optimization methods to solve computationally expensive problems such as smoothing the large computational meshes used in fluid dynamic simulations, performing image registration, or analyzing high-dimensional financial portfolios....


Platforms: Matlab

Based on recent mathematical advances, BhT provides a collection of M-Files for design, simulation and analysis of articulated bodies' motions in fluid. More widely, BhT allows also to perform easily any kind of numeric experiments about the motion of solids in fluids (simulations of so-called...


Platforms: Matlab

A Kirchhoff elliptic vortex is a 2D elliptical region (or d-deDUpatchd-deDt) of uniform vorticity embedded in an inviscid, incompressible and irrotational fluid. G. Kirchhoff showed that these are exact solutions to the nonlinear Euler equations in 1876.Subsequently, A. E. H. Love analyzed the...


Platforms: Matlab

Five scripts that demonstrate some aspects of the dynamics of rotating reference frames:1) rotation.m shows a very simple 3-d trajectory from inertial and rotating reference frames.2) Coriolis.m simulates a 2-d trajectory in a rotating frame that omits the centrifugal force. This allows several...


Platforms: Matlab

Here is a simple Simulink file to calculate the stiffness of hydraulic spring.The theory is explained in my book:M Galal Rabie, Fluid power Engineering, McGraw-Hill, NY, 2009, pp 235-237


Platforms: Matlab

Pixture Reloaded is a colour-able theme and supports 1, 2 or 3 columns and can be either fixed width or fluid.Drupal 7 port is here! The Drupal 7 version is a subtheme of Adaptivetheme, so Pixture Reloaded now has many new layout options and other theme settings. NOTE: many things have changed in...


Platforms: PHP

Part of the AD Themes series, generously sponsored by Duplika, whereby some of the greatest themes for other content management systems, as well as general open source templates, are ported by Avioso Designs to Drupal.Features: * Fluid and fixed-width versions both included * W3C Valid, and...


Platforms: PHP

RootCandy is a 3 column theme focused on administration section. * Supports node/add /edit pages * Re-colorable * Icons * Top navigation by role * Simple dashboard * 3 column fluid or fixed layouts * Rootcandy dark sub-theme * Icons in compact mode * Sliding regionTo know more, read the...


Platforms: PHP

PI-FIND is a project OpenSource PHP search engine. PI-FIND is an intranet rfrencementPermettant contact management by indexing and word association clefsAinsi their rechercheMultilingue with the possibility of cre means of allowing a more fluid search.


Platforms: PHP

The Newton's Law of Cooling model computes the temperature of an object of mass M as it is heated by a flame and cooled by the surrounding medium. The model assumes that the temperature T within the object is uniform. This lumped system approximation is valid if the rate of thermal energy...


Platforms: Mac

The STP Widom Insertion Method program estimates the chemical potential of a Lennard-Jones fluid using the Widom insertion method. The default system is a box with linear dimension L = 20 with N =100 particles at a temperature T = 1.0. STP WidomInsertionMethod is part of a suite of Open Source...


Platforms: Mac

Agua Stacks - by David Lanham Spruce up the appearance of your Leopard stacks. This collection contains 24 individual badges with large resources for Vista & Leopard. Keywords: agua airy aqua candybar collection custom customize david default dlanham document fluid folder icon iconfactory...


Platforms: Mac

Agua Leopard Folders - by David Lanham Agua folders that look at home in Mac OS X Leopard. This collection contains 81 individual icons with large resources for Vista & Leopard. Keywords: agua airy aqua blue bright candybar collection colorful custom customize david default dlanham document...


Platforms: Mac