Evaluation of Micronozzle Performance through DSMC, Navier-Stokes and Coupled DSMC/Navier-Stokes Approaches

Both the particle based Direct Simulation Monte Carlo (DSMC) method and a compressible Navier-Stokes based continuum method are used to investigate the flow inside micronozzles and to predict the performance of such devices. For the Navier-Stokes approach, both slip and no-slip boundary conditions are applied. Moreover, the two methods have been coupled to be used together in a hybrid particle-continuum approach: the continuum domain was then investigated by solving the Navier-Stokes equations with slip wall boundary condition, whereas the region of rarefied regime was studied by DSMC. The section where the domain was split was shown to have a great influence in the prediction of the nozzle performance.

[1]  M. Gad-el-Hak.  The Fluid Mechanics of Microdevices—The Freeman Scholar Lecture , 1999 .

[2]  Chong Xie,et al.  Characteristics of Micronozzle Gas Flows , 2007 .

[3]  Mikhail S. Ivanov,et al.  Numerical study of 2D/3D micronozzle flows , 2002 .

[4]  V. Subramaniam,et al.  Simulation of compressible gas flow in a micronozzle - Effect of walls on shock structure , 2001 .

[5]  Alejandro L. Garcia,et al.  Adaptive Mesh and Algorithm Refinement Using Direct Simulation Monte Carlo , 1999 .

[6]  R. Dorsman,et al.  Numerical simulations of rarefied gas flows in thin film processes , 2007 .

[7]  G. Bird.  Molecular Gas Dynamics and the Direct Simulation of Gas Flows , 1994 .

[8]  Nicolas G. Hadjiconstantinou,et al.  Comment on Cercignani’s second-order slip coefficient , 2003 .

[9]  C. Cercignani.  The Boltzmann equation and its applications , 1988 .

[10]  Alina Alexeenko,et al.  Numerical modeling of axisymmetric and three-dimensional flows in MEMS nozzles , 2000 .

[11]  Patrick Le Tallec,et al.  Coupling Boltzmann and Navier-Stokes Equations by Half Fluxes , 1997 .

[12]  Minghou Liu,et al.  Study on micronozzle flow and propulsion performance using DSMC and continuum methods , 2006 .

[13]  Andrew D. Ketsdever,et al.  Numerical Study of Cold Gas Micronozzle Flows , 1999 .

[14]  Chengxian Lin,et al.  Navier-Stokes Modeling of Gas Flows in a De-Laval Micronozzle , 2006 .

[15]  Seckin Gokaltun,et al.  Numerical Study of Axisymmetric Gas Flow in Conical Micronozzles by DSMC and Continuum Methods , 2006 .

[16]  H. S. Wijesinghe,et al.  Discussion of Hybrid Atomistic-Continuum Methods for Multiscale Hydrodynamics , 2004 .

[17]  Chris R. Kleijn,et al.  Validation of a Hybrid Navier-Stokes/DSMC Method for Multiscale Transient and Steady-State Gas Flows , 2008 .

[18]  Sergey F. Gimelshein,et al.  Numerical Modeling of Axisymmetric and Three-Dimensional Flows in Microelectromechanical Systems Nozzles , 2002 .

[19]  D. Baganoff,et al.  A Numerical Study Comparing Kinetic Flux-Vector Splitting for the Navier-Stokes Equations with a Particle Method , 1998 .

[20]  H. Seifert,et al.  Rocket Propulsion Elements , 1963 .

[21]  H. Wachman,et al.  Formula for thermal accommodation coefficients. , 1967 .