Author: Daria Y. KorneevaPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Numerical Simulation of Compressible Gas Flow Coupled to Heat Conduction in Two Space Dimensions
Author: Daria Y. KorneevaCompressed Gas Handbook
Author: Samuel D. WilsonPublisher:
ISBN:
Category : Gas flow
Languages : en
Pages : 596
Book Description
High pressure compressible flow systems in space vehicle ground support equipment.
Direct Numerical Simulation of Coupled Heat and Mass Transfer in Dense Gas-solid Flows with Surface Reactions
Author: Jiangtao LuPublisher:
ISBN: 9789038646121
Category :
Languages : en
Pages : 196
Book Description
Numerical Simulation of Rarefied Gas Flow in Micro and Vacuum Devices
Author: Anirudh Singh RanaPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
It is well established that non-equilibrium flows cannot properly be described by traditional hydrodynamics, namely, the Navier-Stokes-Fourier (NSF) equations. Such flows occur, for example, in micro-electro-mechanical systems (MEMS), and ultra vacuum systems, where the dimensions of the devices are comparable to the mean free path of a gas molecule. Therefore, the study of non-equilibrium effects in gas flows is extremely important. The general interest of the present study is to explore boundary value problems for moderately rarefied gas flows, with an emphasis on numerical solutions of the regularized 13--moment equations (R13). Boundary conditions for the moment equations are derived based on either phenomenological principles or on microscopic gas-surface scattering models, e.g., Maxwell's accommodation model and the isotropic scattering model.Using asymptotic analysis, several non-linear terms in the R13 equations are transformed into algebraic terms. The reduced equations allow us to obtain numerical solutions for multidimensional boundary value problems, with the same set of boundary conditions for the linearized and fully non-linear equations. Some basic flow configurations are employed to investigate steady and unsteady rarefaction effects in rarefied gas flows, namely, planar and cylindrical Couette flow, stationary heat transfer between two plates, unsteady and oscillatory Couette flow. A comparison with the corresponding results obtained previously by the DSMC method is performed. The influence of rarefaction effects in the lid driven cavity problem is investigated. Solutions obtained from several macroscopic models, in particular the classical NSF equations with jump and slip boundary conditions, and the R13--moment equations are compared. The R13 results compare well with those obtained from more costly solvers for rarefied gas dynamics, such as the Direct Simulation Monte Carlo (DSMC) method. Flow and heat transfer in a bottom heated square cavity in a moderately rarefied gas are investigated using the R13 and NSF equations. The results obtained are compared with those from the DSMC method with emphasis on understanding thermal flow characteristics from the slip flow to the early transition regime. The R13 theory gives satisfying results including flow patterns in fair agreement with DSMC in the transition regime, which the conventional Navier-Stokes-Fourier equations are not able to capture.
Numerical Simulation of Flow Pattern and Heat Transfer Mechanism from a Heated Cylinder in Cross Flow
Author: Abang Ma'aruf Abang BussriPublisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 82
Book Description
Theory of lattice Boltzmann method is introduced to simulate a fluid flow numerically. The lattice Boltzmann method has found to be useful in many application involving interfacial dynamics and complex boundaries. First, the introduction of this report is described the objective of the project. This project objective is to study flow pattern and heat transfer mechanism from a heated cylinder in cross flow. The problem statement is explained in further detailed. The problem is solving using the lattice Boltzmann method theory and some flow simulation. This background of the project is related to the lattice Boltzmann method equation that is involving the Navier-Stoke equation, the governing equation and Bhatnagar-Gross-Krook (BGK) approximation. The literature review explains and described further detail about the lattice Boltzmann method. The methodology discusses about the simulation of the isothermal and thermal of the lattice Boltzmann and how to implement mathematical equation into FORTRAN programming language. The isothermal flow includes the Poiseuille and flow past a cylinder in cross flow. The thermal flow includes the flow past a heated cylinder in cross flow. The isothermal and thermal of lattice Boltzmann equation have been derived from the Boltzmann equation by discretization in both time and phase space. The result obtained by numerical simulation, compared to analytical solution.
Numerical Simulation of a High Pessure [pressure] and High Temperature Gas Flow Inside a Moving Gap Compared with Heat Transfer Measurements
![Numerical Simulation of a High Pessure [pressure] and High Temperature Gas Flow Inside a Moving Gap Compared with Heat Transfer Measurements PDF](https://books.google.com/books/content/images/frontcover/wV2HGwAACAAJ?fife=w80-h100)
Author: Friedrich SeilerMicroscale Gas Flow
Author: Toby ThatcherApplication of Lattice Boltzmann Method in Fluid Flow and Heat Transfer
Author: Quan LiaoScientific and Technical Aerospace Reports
Author: Computational Fluid Mechanics and Heat Transfer
Author: Dale AndersonPublisher: CRC Press
ISBN: 1351124013
Category : Science
Languages : en
Pages : 975
Book Description
Computational Fluid Mechanics and Heat Transfer, Fourth Edition is a fully updated version of the classic text on finite-difference and finite-volume computational methods. Divided into two parts, the text covers essential concepts in the first part, and then moves on to fluids equations in the second. Designed as a valuable resource for practitioners and students, new examples and homework problems have been added to further enhance the student’s understanding of the fundamentals and applications. Provides a thoroughly updated presentation of CFD and computational heat transfer Covers more material than other texts, organized for classroom instruction and self-study Presents a wide range of computation strategies for fluid flow and heat transfer Includes new sections on finite element methods, computational heat transfer, and multiphase flows Features a full Solutions Manual and Figure Slides for classroom projection Written as an introductory text for advanced undergraduates and first-year graduate students, the new edition provides the background necessary for solving complex problems in fluid mechanics and heat transfer.