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I have been using the GasDynamicsTool v. 5.6 for comparing the performance parameters of different explosive formulations, both ideal explosives and non-ideal explosives, and for visualizing the flow of blast waves and thermal loading in complex structures. It has been easy to use and gives quantitative results that are valuable for comparison. Of particular value is the flexibility in visualization of the output in a variety of formats.
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Larry H. Josephson,
Consultant
Ridgecrest, California
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I have used this software in benchmarking our own shock physics work at Sandia. Alexi's team has produced a very good computational program, which works remarkable well on PC platforms. Similar analysis using software developed in the United States requires much larger computers to get comparable results. This program is very robust and contains a variety of submodels covering a broad class of applications. Clearly, this software will have much use.
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"In the past year we have used GDT 5.6 intensively, especially to simulate unsteady compressible flow accompanied by large pressure gradients and strong shocks and expansion waves.
For example we investigated the basic operating characteristics of different types of muzzle brakes for both tank guns and artillery systems and performed parameter studies in order to optimize the performance characteristics. Furthermore we were interested in shock loads on structures.
We made many numerical predictions on different computer systems and we would once again like to state, that the code has proven to be a marvellous tool for computing unsteady shocked flow."
"GDT has user-friendly interface that facilitates the study of very complex problems related to aerodynamics and explosive blast. ScientificVR is a visualization tool that you will want to use with all your analysis code."
"The GDT package is used in the Institute of mechanics of MSU since 1999 year in educational and scientific research (for practical training with students by subject "gas and wave dynamics", for example, for calculation of non-stationary gas dynamical processes in high pressure chamber of pneumatic gun (students practical work problem)), and also for scientific aims for construction numerical examples when some fundamental problems of gas dynamics is investigated (influence of impulse periodical source of external energy feeder in supersonic flow around the bodies; forming of guided nonuniformity in supersonic tail flow behind the mesh shields; hypersonic stream around double wedge and so on).
GDT package shows itself very well as comfortable tool for analysis of shock-wave configurations with different complexity."
Dr. S.V. Guvernyuk
Deputy Director of Institute of Mechanics,
Lomonosov Moscow State University
"In engineers practice it is necessary to estimate new phenomena or conditions. If you have gasdynamical flow, the GDT allows you to make numerical experiment on-the-fly, and to get visual presentations of process. We have used this program for:
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analysis of flow in base area of missile with complex configuration of stern (coreless, perforated), owing to these fact that new missile shapes were suggested,
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calculation of forces on fin-stabilized missile in conditions of influence with muzzle gases and the requirements for dispersion decreasing were formulated."
"We successfully use the GDT package for calculation of 3D nonstationary problems of an interaction between blast waves with Mach configuration. There the multiphase and chemical reactions processes are considered. Package gives satisfying, qualitative and numerical results with excellent computing cost."
"The GDT package is very topical for modern students. Working with this program student can get vivid solution of aerodynamical problems. Comfortable and powerful GDT interface allows to work even such users, which are not particular specialist. Main features of program are model contraction and editing simplicity, wide set of boundary and initial conditions, flow characteristics. Color spectrum control gives the ability to show process more clear. The animation in this package increases the student interest of studding. Precision of calculations is the indubitable plus of program. Recommencement of calculations after suspend is also facilitated of user work. The GDT allows saving calculation time that is very important for students. Unfortunately, I use the university version of program, so I cannot see all package abilities."
G.V. Chapta,
student of Samara State University
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