Mathematica
The inversion of Laplace transforms is performed using two methods: (1) the Zakian method and (2) the Fourier series approximation. Results are in agreement with analytical solutions. The Zakian method presents problems for transcendental functions. The Fourier series gives better results when...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (46): Numerical Inversion of Laplace Transforms Download |
The programs compute the bifurcation diagram for the cubic map and a realistic population dynamics model. The value of parameter r, when the cycle of period three appears, is indicated. As expected, for higher values of r, we observe chaotic behaviour. Both models are given in the problems?...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Bifurcation Diagram for the cubic map and a realistic model for population dynamics Download |
Three factors interfere in the determination of pellet mean size. These are the impeller speed, the binding solution and the pelletization time. We use experimental design (Doehlert design) to predict pellet mean size versus the three factors. We determine the quadratic model by multi-linear...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (48): Doehlert Design for Wet Pelletization in High Shear Mixer Download |
We use the SRK equation of state to compute the correction factor due to gas-phase nonideality as a result of the high pressure applied in the ammonia synthesis. We also compute the extent of reaction. Plots of these two quantities versus pressure for temperature equal to 800K are presented. The...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (48): Calculation of High-Pressure Chemical Equilibrium: Case of ammonia synthesis Download |
The program allows one to choose the best reactor setup among three alternatives: (1) a plug flow reactor with recycle, (2) a combination of a plug flow reactor and a stirred tank reactor in series and (3) two stirred tank reactors in series. This problem was solved graphically by O. Levenspiel...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Selection of Optimum Chemical Reactor Design Download |
The code computes the velocity profile for the vertical laminar flow of a Bingham fluid down a wall. As expected the profile is flat near the surface of the liquid film. In fact, we have a zero velocity gradient only when the shear stress is large enough (superior to tau0). This behaviour is...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (43): Vertical Laminar Flow of a Bingham Fluid down a Wall Download |
The velocity and shear stress versus radial position are determined for laminar flow of a Carreau fluid in a pipe. The shooting method is used to verify the no-slip boundary condition at the piped-deOaos wall. Once the velocity at the center is determined, the governing Differential Algebraic...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (44): Velocity Profile of Laminar Flow of Carreau fluid in a Pipe Download |
The velocity and shear stress versus radial position are determined for laminar flow of a power law fluid in a pipe. The shooting method is used to verify the no-slip boundary condition at the piped-deOaos wall. Once the velocity at the center is determined, the governing equation is solved...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (46): Velocity Profile of Laminar Flow of Power Law fluid in a Pipe Download |
The files residu.m and residue2.m contain two functions called by the main program: calresd.m . The objective is to compute the residue curve map for the ternary system chloroform-acetone-methanol at 760 mmHg using the Wilson model to compute activity coefficients.Similar computations can be...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (45): Residue Curve Maps of Ternary Systems Download |
The user has to provide the program the constants and parameters of the models using a dialog box. A pop-up menu and an update button allow the user to select the plot (Txy, activity coefficients and relative volatility).A similar program using Mathematica 6.0 is available at the following...
Platforms: Matlab
License: Freeware | Size: 51.2 KB | Download (39): VLE Computations using GUI Download |
Stokesian Dynamics, a method developed by Brady and Bossis in the 80s, simulate the 3D motion of hydrodynamically interacting spheres at low Reynolds numbers.The present contribution computes the trajectories of hydrodynamically interacting spheres in simple and oscillatory shear flows of a...
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (46): Hydrodynamically Interacting Spheres at low Reynolds numbers in shear flows of a Newtonian fluid Download |
Sage is a free open-source mathematics software system licensed under the GPL. It combines the power of many existing open-source packages into a common Python-based interface. Mission: Creating a viable free open source alternative to Magma, Maple, Mathematica and Matlab.
Platforms: Mac
License: Shareware | Cost: $0.00 USD | Size: 570.64 MB | Download (41): Sage Notebook Download |
VectorAlgebra is a Mathematica-package which implements various functions for simple vector calculations in d-dimensional spaces with constant metrics.
Platforms: *nix
License: Freeware | Size: 81.92 KB | Download (39): VectorAlgebra For Linux Download |
The QuantLib project is aimed at providing a comprehensive software framework for quantitative finance. QuantLib is a free/open-source library for modeling, trading, and risk management in real-life. QuantLib is written in C++ with a clean object model, and is then exported to different...
Platforms: *nix
License: Freeware | Size: 3.72 MB | Download (34): QuantLib for Linux Download |
GLplot is a Mathematics function plotting program based on OpenGL. It can be used to plot functions in 3 dimensions. The results are not as good as Mathematica or Matlab but it gives a good example or OpenGL programming.
Platforms: *nix
License: Freeware | Size: 61.44 KB | Download (39): GLplot Download |
UMS allows students not only to solve problems simply by entering the arbitrary problem they are interested in taken from any text-book or created on the spur of the moment, but to obtain a COMPLETE SOLUTION of that problem together with a complete presentation of the WHOLE CALCULATION PROCESS,...
License: Freeware | Size: 6.45 MB | Download (3036): Universal Math Solver Download |
MadCalc is a full featured graphing calculator application for your PC running Windows. With MadCalc you can graph rectangular, parametric, and polar equations. Plot multiple equations at once. Change the colors of graphs and the background. Use the immediate window feature to evaluate complex...
Platforms: Windows
License: Shareware | Cost: $10.00 USD | Size: 388 KB | Download (571): MadCalc Download |
Software development kit for CAD/CAM/ GIS and graphic software developers. Converts from raster to vector and refines architect, mechanical, tech drawing, maps, math graphs, graphics for books and journals and more. ActiveX and Com Component are also available. Refines vector graphics, creates...
Platforms: Windows
License: Shareware | Cost: $99.00 USD | Size: 2.73 MB | Download (257): Algolab Raster to Vector Conversion CAD/GIS SDK Download |
The QuantLib project is aimed at providing a comprehensive software framework for quantitative finance. QuantLib is a free/open-source library for modeling, trading, and risk management in real-life. QuantLib is written in C++ with a clean object model, and is then exported to different...
Platforms: Mac
License: Freeware | Size: 5.76 MB | Download (102): QuantLib Download |
PDL::Ufunc Perl module contains primitive ufunc operations for pdl. This module provides some primitive and useful functions defined using PDL::PP based on functionality of what are sometimes called ufuncs (for example NumPY and Mathematica talk about these). It collects all the functions...
Platforms: *nix
License: Freeware | Size: 2.1 MB | Download (96): PDL::Ufunc Download |