scholarly journals A direct relaxation process for particle methods in gas-kinetic theory

2021 ◽  
Vol 33 (7) ◽  
pp. 076109
Author(s):  
Sirui Yang ◽  
Sha Liu ◽  
Chengwen Zhong ◽  
Junzhe Cao ◽  
Congshan Zhuo
Keyword(s):  
Kinetic Theory ◽  
Relaxation Process ◽  
Particle Methods ◽  
Gas Kinetic Theory

Numerical Methods for the Kinetic Theory of Fluids

2018 ◽  
Author(s):  
Sauro Succi
Keyword(s):  
Molecular Dynamics ◽  
Monte Carlo ◽  
Numerical Methods ◽  
Kinetic Theory ◽  
Computational Efficiency ◽  
Lattice Boltzmann ◽  
Direct Simulation Monte Carlo ◽  
Particle Methods ◽  
Direct Simulation ◽  
Simulation Monte Carlo

This chapter provides a bird’s eye view of the main numerical particle methods used in the kinetic theory of fluids, the main purpose being of locating Lattice Boltzmann in the broader context of computational kinetic theory. The leading numerical methods for dense and rarified fluids are Molecular Dynamics (MD) and Direct Simulation Monte Carlo (DSMC), respectively. These methods date of the mid 50s and 60s, respectively, and, ever since, they have undergone a series of impressive developments and refinements which have turned them in major tools of investigation, discovery and design. However, they are both very demanding on computational grounds, which motivates a ceaseless demand for new and improved variants aimed at enhancing their computational efficiency without losing physical fidelity and vice versa, enhance their physical fidelity without compromising computational viability.

Gas Phase Spin Relaxation of ZX3Y Molecules in the Dipolar Approximation

1975 ◽  
Vol 53 (7) ◽  
pp. 723-738 ◽  
Author(s):  
B. C. Sanctuary ◽  
R. F. Snider
Keyword(s):  
Kinetic Theory ◽  
Gas Phase ◽  
Magnetic Relaxation ◽  
Dipolar Coupling ◽  
Point Group ◽  
Group Symmetry ◽  
Subsequent Paper ◽  
Point Group Symmetry ◽  
Proper Treatment ◽  
Gas Kinetic Theory

The gas kinetic theory of nuclear magnetic relaxation of a polyatomic gas, as formulated in the previous paper, is evaluated for ZX3Y molecules relaxing via a dipolar coupling Hamiltonian. Stress is given to a proper treatment of point group symmetry, here C3v, and the possibility of molecular inversion is included. The detailed formula for the spin traces is however restricted to X nuclei with spin 1/2. A subsequent paper uses these results to elucidate the structure of the high density dependence of T1 forCF3H.

Gas Kinetic Theory of Entropy

2018 ◽  
pp. 201-231
Author(s):  
Bahman Zohuri ◽  
Patrick McDaniel
Keyword(s):  
Kinetic Theory ◽  
Gas Kinetic Theory

Numerical Navier-Stokes Solutions from Gas Kinetic Theory

1994 ◽  
Vol 114 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Kun Xu ◽  
Kevin H. Prendergast
Keyword(s):  
Kinetic Theory ◽  
Navier Stokes ◽  
Gas Kinetic Theory

scholarly journals Students’ Scientific Explanation in Blended Physics Learning with E-Scaffolding

2018 ◽  
Vol 7 (2) ◽  
pp. 181-186 ◽  
Author(s):  
E. Oktavianti ◽  
S. K. Handayanto ◽  
W. Wartono ◽  
E. Saniso
Keyword(s):  
Kinetic Theory ◽  
Scientific Explanation ◽  
Natural Sciences ◽  
Physics Learning ◽  
Research Results ◽  
Gas Kinetic Theory

This purpose of this research was to analyze the influence of blended physics learning with e-scaffolding on the gas kinetic theory to the students’ scientific explanation. This research used quasi-experimentation with one group pretest-posttest design. The population of this research included the grade XI students of Natural Sciences in SMA Negeri 1 Bangkalan. The proposed hypothesis was that the blended physics learning with e-scaffolding affected the students’ scientific explanation. The research results indicated that the students’ scientific explanation ability significantly increased after they experienced blended physics learning with e-scaffolding. All aspects of scientific explanation, that was the claim, evidence, and reasoning improved significantly.

scholarly journals Implementation of Conceptual Change of Gas Kinetic Theory Material using Process Images

2019 ◽  
Vol 9 (2) ◽  
pp. 215-222
Author(s):  
Indro Wicaksono ◽  
◽  
Linda Kurnia Supraptiningsih ◽  
Haritsah Alfad ◽  
◽  
...  
Keyword(s):  
Data Analysis ◽  
Kinetic Theory ◽  
Conceptual Change ◽  
Daily Life ◽  
Average Increase ◽  
Conceptual Changes ◽  
Gas Kinetic Theory ◽  
Kinetic Gas Theory ◽  
Effective Speed

The aim of this research is to implement the learning of conceptual changes in kinetic gas theory material using process drawings. This research is a pre-experimental with one-group pretest-posttest design for 30 students of XI IPA 7 MAN 2 Probolinggo City. The instrument used is a description test of 6 questions. The results of the data analysis showed that the change in student concept after using process images in kinetic gas theory material increased with an average increase score of 0.51 (medium gain). This happens because students still experience misconceptions on the material laws of gas that are associated with the phenomena of daily life and the effective speed of gases theoretically.

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