MODELING of Rarefied Gas Flows Inside a Micro-Nozzle Based on the DSMC Method Coupled with a Modified Gas–Surface Interaction Model

MODELING of Rarefied Gas Flows Inside a Micro-Nozzle Based on the DSMC Method Coupled with a Modified Gas–Surface Interaction Model

In this study, we first considered the influence of micro-nozzle wall roughness structure on molecular collision and reflection behavior and established a modified CLL model. The DSMC method was used to simulate and analyze the flow of the micro-nozzle in the cold gas micro-propulsion system, and th...

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Bibliographic Details
Main Authors: Xuhui Liu, Dong Li, Xinju Fu, Yong Gao, Xudong Wang
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Energies
Subjects:
rarefied flow
wall roughness structure
DSMC method
needle valve opening
molecular number density
thrust force
Online Access:https://www.mdpi.com/1996-1073/16/1/505

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