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Digital Atmosphere is a powerful weather forecasting program that allows you to create detailed maps of real-time weather for anywhere in the world. It makes extensive use of techniques and algorithms that are comparable and in some cases superior to the National Weather Service"s multimillion-dollar computers. It runs on any Windows system, and uses free data from government and university sources on the Internet.

The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more "hijacking" of file types.

UCSF Chimera is a highly extensible program for interactive visualization and analysis of molecular structures and related data, including density maps, supramolecular assemblies, sequence alignments, docking results, trajectories, and conformational ensembles. High-quality images and animations can be generated. Chimera includes complete documentation and several tutorials.

The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more "hijacking" of file types.

Cain performs stochastic and deterministic simulations of chemical reactions. It can spawn multiple simulation processes to utilize multi-core computers. It stores models, simulation parameters, and simulation results in an XML format. In addition, SBML models can be imported and exported. The models and simulation parameters can be read from input files or edited within the program.

The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more "hijacking" of file types.

AFT Titan is built on and includes all of the modeling building tools and analysis capabilities of AFT Arrow. Models of compressible piping systems may be developed and analyzed within AFT Titan as in AFT Arrow. Model files developed within either AFT Arrow or AFT Titan may be opened by the other application. Please refer to tthe AFT Arrow pages for a deion of of these modeling capabilities.

In addition to these powerful analysis and modeling simulation capabilities, AFT Arrow employs IntelliFlow® determine optimal pipe and equipment sizes that will meet system performance requirements at minimum cost. What is IntelliFlow®? IntelliFlow® combines powerful network pipe flow analysis algorithms with state-of-the-art numerical optimization algorithms to intelligently evaluatethe complex interaction of system design variables. The system design is repeatedly perturbed and re-analyzed to define the shape of the design space, revealing combinations of design parameters that minimize cost. Design constraints specified by the engineer direct the search in areas that satisfy design requirements such as pressure, velocity and compressor pressure rise. Searching continues until an optimum design is found, which is then presented to the user. Selected through Optimization Control, AFT Titan will perform either and Engineering Optimization or a Cost Optimization.

The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more "hijacking" of file types.

Waterhammer analysis tools of the past have been noted for being difficult to use and requiring extensive specialized knowledge. As a result, this critical aspect of piping system design and operation has often been overlooked. But no longer. Now AFT Impulse™ offers the ease-of-use of a drag-and-drop interface and built-in waterhammer modeling expertise. AFT Impulse helps you design and operate your systems with greater reliability and safety by avoiding the potentially catastrophic effects of waterhammer and other undesirable system transients.

Piping systems engineers typically do not have the time to become specialists in waterhammer modeling. Now they don’t have to. Now they can be equipped with the proper tools to design and analyze for waterhammer transients in liquid systems containing water, petroleum and chemical products, cryogens, refrigerants and more. Waterhammer specialists will find a no compromise tool capable of modeling a broad range of waterhammer events, including transient cavitation and various surge suppression devices. AFT Impulse provides a built-in library of fluids and fittings, variable model configurations, pump and control valve modeling and much more. Scenario Manager raises the what-if potential of waterhammer modeling to a new level. Multiple system configurations varying by any modeling parameter are easily managed within a single model file with a familiar hierarchical interface. Changes in the base model are automatically inherited by alternate design cases.

AFT Impulse incorporates a steady-state solver providing seamless transfer of initial conditions to the transient analysis. The traditional Method of Characteristics are employed to solve the transient mass and momentum equations of pipe flow. Modeling vapor cavitation and liquid column separation, the effect of pressure surges due to vapor cavity collapse may be evaluated. Modeling tools for a wide range of system components and surge devices are included. Transients can be initiated based on time or on events in the system. For example, a valve closure transient may be initiated when a specified pressure level is attained at a location. In addition to time varying fluid dynamics, AFT Impulse can calculate transient hydraulic forces on piping for use in calculating pipe stresses and even generate a CAESAR II force file for direct importation to this popular pipe stress analysis tool.

From the powerful drag-and-drop model building features to the fully customizable output, AFT Impulse is a powerful tool ready to tackle your most demanding design problems, and with the release of version 4.0, AFT Impulse further expands you ability to analyze and design your piping systems dynamically.

The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more "hijacking" of file types.

AFT Fathom 7.0 provides comprehensive, incompressible pipe flow analysis and system modeling capabilities combined with ease-of-use. Addressing open and closed loop systems, AFT Fathom includes a built-in library of fluids and fittings, variable model configurations, pump and control valve modeling and much more. With the optional Chempak add-in, a thermo-physical database of over 600 fluids is available to further expand the envelope of your analysis and design. AFT Fathom goes beyond the boundaries of traditional pipe flow analysis, with thermal analysis capabilities including piping heat transfer, heat exchanger modeling and varying fluid properties.

The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more "hijacking" of file types.

AFT Arrow 4.0 provides comprehensive, compressible pipe flow analysis and system modeling capabilities combined with ease-of-use. Addressing open and closed loop systems, AFT Arrow includes a built-in library of fluids and fittings, variable model configurations, fan/compressor and control valve modeling and much more. With the optional Chempak add-in, a thermo-physical database of approximately 600 gases is available to further expand the envelope of your analysis and design. AFT Arrow goes beyond the boundaries of fluid flow analysis, with thermal analysis capabilities including piping heat transfer, heat exchanger modeling and varying fluid properties.

The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more "hijacking" of file types