Results 171 to 180 of about 7,237 (218)
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Detonation in Microchannel by the DSMC Method
42nd AIAA Thermophysics Conference, 2011A detonation wave propagation along a two-dimensional 1-mm-width channel in hydrogenoxygen stoichiometric mixture has been simulated by Direct Simulation Monte Carlo method. A detailed chemical kinetic mechanism for 6 species has been implemented and all the chemical reactions have been modeled at a level of molecular collisions.
Yevgeniy Bondar +2 more
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A Hybrid Method that Interpolates Between DSMC and CFD
44th AIAA Aerospace Sciences Meeting and Exhibit, 2006For small Knudsen number, simulation of rarefied gas dynamics by the DSMC method becomes computationally intractable because of the large collision rate. To overcome this problem we have developed a hybrid simulation method, combining DSMC and a fluid dynamic description in a single seamless method.
Caflisch R. +3 more
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A Practical Variance Reduced DSMC Method
AIP Conference Proceedings, 2011The goal of this work is to develop a practical method for simulating low‐signal kinetic (and small‐scale) gaseous flows. These flows have recently received renewed attention in connection with the design, manufacturing, and optimization of MEMS/NEMS devices operating in gaseous environments; they are typically described using the Boltzmann equation ...
H. A. Al-Mohssen +1 more
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Parallel Implementation of a Corrected DSMC Method
2001In the paper it is suggested a correction of the Bird's algorithm in the DSMC method. It takes account of real distribution of collision events inside the time steps Δt and actual trajectories for the collided particles there thus diminishing asymptotical order of the error in time evolution from O(Δt) to O((Δt)2).
Svetlana Ignattieva, Vladimir Memnonov
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Efficient CUDA implementation in the DSMC method
AIP Conference Proceedings, 2012An algorithm of DSMC computations on several graphic processor units (GPUs) is proposed. The efficiency of this algorithm is demonstrated. The computational efficiency of one GPU is equivalent to 10-30 processors of a computational cluster based on multicore CPUs.
A. V. Kashkovsky +2 more
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AIP Conference Proceedings, 2001
In the past decade a number of hybrid methods, which combine Direct Simulation Monte Carlo (DSMC) with computational fluid dynamics (CFD) algorithms, have been proposed. The motivation for developing such hybrids is primarily the computational expense of DSMC relative to continuum CFD schemes.
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In the past decade a number of hybrid methods, which combine Direct Simulation Monte Carlo (DSMC) with computational fluid dynamics (CFD) algorithms, have been proposed. The motivation for developing such hybrids is primarily the computational expense of DSMC relative to continuum CFD schemes.
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Analysis of Repeated Collisions in the DSMC Method
AIP Conference Proceedings, 2005By the example of one‐dimensional problems of heat transfer and Couette flow, the influence of the statistical dependence between the simulated molecules on the deviation of the numerical solution obtained by the Direct Simulation Monte Carlo method from the solution of the Boltzmann equation is considered.
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Analysis of Numerical Errors in the DSMC Method
AIP Conference Proceedings, 2005The direct simulation Monte Carlo (DSMC) method is one of the most popular numerical methods used to model rarefied gas environment flows. In order to predict the accuracy of a solution obtained by the DSMC method we have to be able to estimate its accuracy.
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The Treatment of Molecular Collisions in DSMC Methods
Molecular Simulation, 1995Abstract We describe Direct Simulation Monte Carlo (DSMC) methods which model systems under low pressure with emphasis on the treatment of molecular collisions in DSMC methods. According to the treatment of molecular collisions, several variants of DSMC methods can be distinguished. This work compares some versions of DSMC methods (Bird's time counter,
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Implementation of parcel method for surface reactions in DSMC
Computers & Fluids, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sangita Swapnasrita +5 more
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