VISUALIZATION OF MORPHOLOGY BY RIB DESTRUCTION WHEN EXPOSED TO A STAB-CUT OBJECT
M.A. Kislov, K.N. Krupin
Accepted: 2021-09-06
Abstract
With the help of native experiments and mathematical modeling, morphological signs of stab-cut damage to the rib were established and visualized. The regularities of the load distribution in the bone tissue in this type of injury were revealed. The knife blade tip zone action and the transition of end-to-end cutting to longitudinal cutting is identified and visualized. The finite element analysis method application of stab-cut bone tissue damage is proposed.
Visualization of the CFD calculations results on adaptive mixed meshes
S.A. Soukov
Accepted: 2021-09-02
Abstract
The article discusses the problem of the results visualization of the computational fluid dynamics simulations on cell-centered adaptive mixed meshes. An algorithm for converting hierarchical adaptive mixed meshes consisting of tetrahedra, triangular prisms, quadrangular pyramids, and hexahedra to a conformal form is described. The main idea of the proposed algorithm is to decompose a subset of mesh cells with hanging nodes on the edges into tetrahedra and pyramids with the addition of new vertices at the polyhedra mass centers. The mesh functions interpolation algorithm based on the discrete analogue of the formula for the integral representation of the gradient. Application of the algorithm allows to show the fields of mesh functions by software for data visualization on irregular grids. On the example of a stationary supersonic flow visualization at the sphere surface using the Tecplot tools, the advantages and disadvantages of various data presentation options are demonstrated. These include displaying results on a hanging node mesh without changing the topology, transferring data to a starting conformal mesh, polyhedra data visualization, and converting an adaptive mesh to conformal form with cell decomposition and data interpolation.
Processing of visual experimental PIV-data using a random synthetic particle generator
A.A. Mochalov, A. Yu. Varaksin
Accepted: 2021-08-22
Abstract
The study of free non-stationary vortex structures by the PIV method requires the search for the most rational approach to visual data processing. The paper evaluates the qualitative and quantitative characteristics of the velocity fields based on the generator of random synthetic particles. The simplified case of a solid-state rotation with a given velocity is considered as the closest to the vortex motion.
Investigation of the jet liquid flows structure by multicolor Particle Image Velocimetry
S. S. Usmanova, A. V. Kuchmenko, N. M. Skornyakova, M. V. Sapronov
Accepted: 2021-07-30
Abstract
The work aim was to find out the possibility of using multicolor particle image velocimetry for the diagnosis of jet liquid flows. The main difference between this method and particle image velocimetry is that three laser planes of different wavelengths located at a short distance from each other are used as probing radiation. This modification allows obtaining information about the flow structure simultaneously in three different planes. A jet liquid stream from a sprayer has been considered as a research object. As a result, a laboratory setup was assembled and a series of experiments were carried out. The paper presents examples of experimental images, the processing result, describes its algorithm, and also estimates the accuracy of the data obtained.
Dendrograms in regional socio-economic analysis: interpretation and verification
V.I. Blanutsa
Accepted: 2021-07-25
Abstract
Interest in regional socio-economic analysis has grown in the last decade. Various tools are used to visualize its results. One of them is the dendrogram. However, in world science there is no generalization of the experience of using dendrograms to display the sequence of combining regions into socio-economic clusters. Therefore, the goal of our study was to generalize such experience with an emphasis on the interpretation and verification of dendrograms. Based on eight bibliographic databases using a special semantic search algorithm, more than eighty journal articles published around the world in the last two decades have been identified. These articles contain one hundred and thirty dendrograms. Their analysis showed that the main purpose of tree diagrams is to fix the sequence of combining regions into clusters and to substantiate the number of clusters. Two new types of interpretation of dendrograms are proposed – the allocation of nuclei in clusters and the determination of the level of socio-economic cohesion of clusters. To test the validity of determining the number of clusters, the author's algorithm for identifying the optimal clustering option is proposed, based on the idea of the complexity of the tree in graph theory. The ten main problems of visualizing the results of regional socio-economic analysis using dendrograms are listed.
Visualization of the efficiency processes management and University' HR-potential evaluation
V.D. Kolychev, N.A. Budanov
Accepted: 2021-07-11
Abstract
The article is devoted to the development and application of a set of visual analyt-ical models used in the management of performance based on key indicators and the assessment of the University's human resources potential using integrated in-formation and analytical tools. The relevance of the development and application of visual analytics methods is aimed at improving the efficiency of management decision-making, strategic planning and assessment of the potential for growth and development. The need to develop methods of visual analytics in the field of per-formance management is due to the current reconfiguration of the functioning of large-scale competitive high-tech enterprises, focused primarily on improved goal-setting technology and the use of modern methods of analyzing human resources. The article presents a set of visual models used for a comprehensive analysis and evaluation of the effectiveness of the organization, based on the use of a set of ge-ometric modeling tools that allow you to use modern computer tools to demon-strate methods of making managerial decisions.
