Aim To visualize the explosive field and design a useful and practicable software tool to analyze explosive field. Methods An ideal model of the explosive field with a protective wall, which was simulated by another...Aim To visualize the explosive field and design a useful and practicable software tool to analyze explosive field. Methods An ideal model of the explosive field with a protective wall, which was simulated by another program MMIC(multi material in cell), was brought forward. The physical data output by MMIC were changed into image data represented by DIB bitmaps through the following steps: normalizing, coding, mapping and displaying. The object oriented method was applied in programming. Results and Conclusion With the tool, the explosive field with a protective wall is visualized. The overview of explosive field and some details about the transmission of shock wave in the field, such as reflection, flow over an obstacle and Mach reflection, are shown.展开更多
In order to visualize the 3-D field of explosion and describe the complex physical phenomena of explosion, the 3-D data resulting from numerical simulation by 3-D multi-material in cell (MMIC), and the application of ...In order to visualize the 3-D field of explosion and describe the complex physical phenomena of explosion, the 3-D data resulting from numerical simulation by 3-D multi-material in cell (MMIC), and the application of volume visualization is explored, based on the characteristics of explosion and shock. Based on this, a visualization system for 3-D explosion--ViSC3D is designed. Approaches for the visualization of 3-D field of explosion are presented. The algorithm and the functions of ViSC3D are also presented. ViSC3D is thus a useful tool to observe and analyze either the full picture or the details of a 3-D field of explosion, that are difficult to observe and analyze directly. With ViSC3D, the field of explosion between the hill slopes is visualized. The cutaway views and 2-D slices are also given. The full picture and partial details of 3-D field of explosion can be observed clearly. Furthermore, ViSC3D can be used to visualize other similar 3-D data fields.展开更多
The advantages and disadvantages of two existing methods for explosive field visualization are analyzed in this paper. And a new method based on image fusion is proposed to integrate their complementary advantages. Wi...The advantages and disadvantages of two existing methods for explosive field visualization are analyzed in this paper. And a new method based on image fusion is proposed to integrate their complementary advantages. With the method, two source images built by equal mapping and modulus mapping are individually decomposed into two Gauss-Laplacian pyramid sequences. Then, the two individual sequences are used to make a composite one according to the process of fusion. Finally, a new image is reconstructed from the composite sequence. Experimental results show that the new images integrate the advantages of sources, effectively improve the visualization, and disclose more information about explosive field.展开更多
文摘Aim To visualize the explosive field and design a useful and practicable software tool to analyze explosive field. Methods An ideal model of the explosive field with a protective wall, which was simulated by another program MMIC(multi material in cell), was brought forward. The physical data output by MMIC were changed into image data represented by DIB bitmaps through the following steps: normalizing, coding, mapping and displaying. The object oriented method was applied in programming. Results and Conclusion With the tool, the explosive field with a protective wall is visualized. The overview of explosive field and some details about the transmission of shock wave in the field, such as reflection, flow over an obstacle and Mach reflection, are shown.
文摘In order to visualize the 3-D field of explosion and describe the complex physical phenomena of explosion, the 3-D data resulting from numerical simulation by 3-D multi-material in cell (MMIC), and the application of volume visualization is explored, based on the characteristics of explosion and shock. Based on this, a visualization system for 3-D explosion--ViSC3D is designed. Approaches for the visualization of 3-D field of explosion are presented. The algorithm and the functions of ViSC3D are also presented. ViSC3D is thus a useful tool to observe and analyze either the full picture or the details of a 3-D field of explosion, that are difficult to observe and analyze directly. With ViSC3D, the field of explosion between the hill slopes is visualized. The cutaway views and 2-D slices are also given. The full picture and partial details of 3-D field of explosion can be observed clearly. Furthermore, ViSC3D can be used to visualize other similar 3-D data fields.
基金Sponsored by the National Natural Science Foundation of China(10625208)the Basic Research Foundation of Beijing Institute of Technology(20061242005)the Foundation of State Key Laboratory of Explosion Science and Technology(ZDKT08-02)
文摘The advantages and disadvantages of two existing methods for explosive field visualization are analyzed in this paper. And a new method based on image fusion is proposed to integrate their complementary advantages. With the method, two source images built by equal mapping and modulus mapping are individually decomposed into two Gauss-Laplacian pyramid sequences. Then, the two individual sequences are used to make a composite one according to the process of fusion. Finally, a new image is reconstructed from the composite sequence. Experimental results show that the new images integrate the advantages of sources, effectively improve the visualization, and disclose more information about explosive field.
